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Chen, Junjie 3de6842994 DCS UMN 20240521 version 
Reviewed-by: Mützel, Andrea <andrea.muetzel@t-systems.com>
Co-authored-by: Chen, Junjie <chenjunjie@huawei.com>
Co-committed-by: Chen, Junjie <chenjunjie@huawei.com>
2024-07-05 08:59:46 +00:00

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"des":"On the DCS console, you can export DCS instance information in full to an Excel file.",
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"code":"65",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"uri":"dcs-ug-0312023.html",
"node_id":"dcs-ug-0312023.xml",
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"des":"In most cases, different DCS instance management operations cannot proceed concurrently. If you initiate a new management operation while the current operation is in prog",
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"uri":"dcs-ug-0312024.html",
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"code":"67",
"des":"You can modify the configuration parameters of your DCS instance to optimize DCS performance based on your requirements.For example, if you do not need data persistence, ",
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{
"uri":"dcs-ug-0312025.html",
"node_id":"dcs-ug-0312025.xml",
"product_code":"dcs",
"code":"68",
"des":"On the DCS console, after creating a DCS instance, you can modify the maintenance time window of the DCS instance on the instance's Basic Information page.At least one DC",
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{
"uri":"dcs-ug-0312026.html",
"node_id":"dcs-ug-0312026.xml",
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"code":"69",
"des":"On the DCS console, after creating a DCS instance, you can modify the security group of the DCS instance on the instance's Basic Information page.You can modify the secur",
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{
"uri":"dcs-ug-0312028.html",
"node_id":"dcs-ug-0312028.xml",
"product_code":"dcs",
"code":"70",
"des":"After you initiate certain instance operations such as modifying instance specifications and changing or resetting a password, a background task will start for the operat",
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"title":"Viewing Background Tasks",
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{
"uri":"dcs-ug-0312029.html",
"node_id":"dcs-ug-0312029.xml",
"product_code":"dcs",
"code":"71",
"des":"You can view the data storage statistics of all nodes of a DCS Redis 3.0 Proxy Cluster instance. If data storage is unevenly distributed across nodes, you can scale up th",
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{
"uri":"TagManagement.html",
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"code":"72",
"des":"Tags facilitate DCS instance identification and management.You can add tags to an instance when creating it or add, modify, or delete tags on the details page of a create",
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"kw":"Managing Tags,Managing DCS Instances,User Guide",
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},
{
"uri":"dcs-ug-210107001.html",
"node_id":"dcs-ug-210107001.xml",
"product_code":"dcs",
"code":"73",
"des":"This section describes how to query the shards and replicas of a DCS Redis 4.0/5.0/6.0 instance and how to manually promote a replica to master.Currently, this function i",
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"uri":"dcs-ug-190808001.html",
"node_id":"dcs-ug-190808001.xml",
"product_code":"dcs",
"code":"74",
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"des":"DCS helps you control access to your DCS instances in the following ways, depending on the deployment mode:To control access to DCS Redis 3.0 instances, you can use secur",
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"des":"Redis logs queries that exceed a specified execution time. You can view the slow query log on the DCS console to identify performance issues.For details about the command",
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"uri":"dcs-ug-1009001.html",
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"code":"78",
"des":"You can create run log files on the DCS console to collect run logs of DCS Redis instances within a specified period. After the logs are collected, you can download the l",
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"des":"DCS Redis 6.0instances support SSL encryption to ensure data transmission security. This function is not available for other instance versions. RESP (REdis Serialization ",
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"des":"On the DCS console, you can back up and restore DCS instances.There is a small chance that inconsistent data could exist in a DCS instance owing to service system excepti",
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"des":"On the DCS console, you can configure an automatic backup policy. The system then backs up data in your instances according to the backup policy.By default, automatic bac",
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"uri":"dcs-ug-0312033.html",
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"des":"On the DCS console, you can restore backup data to a chosen DCS instance.At least one master/standby or cluster DCS instance is in the Running state.A backup task has bee",
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"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"des":"Use the DCS console to migrate backup data to DCS for Redis.Simply download the source Redis backup data and then upload the data to an OBS bucket in the same region as t",
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"uri":"dcs-ug-210226001.html",
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"des":"Use the DCS console to migrate Redis data from self-hosted Redis to DCS for Redis.Simply back up your Redis data, create a migration task on the DCS console, and then imp",
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"uri":"dcs-ug-0312038.html",
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"des":"If the source and target instances are interconnected and the SYNC and PSYNC commands are supported in the source instance, data can be migrated online in full or increme",
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"uri":"dcs-ug-0312040.html",
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"des":"On the DCS console, you can change the password required for accessing your DCS instance.You cannot change the password of a DCS instance in password-free mode.The DCS in",
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"code":"95",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"des":"This section describes how to view parameter templates on the DCS console.Currently, you can enter a keyword in the search box to search for a parameter template by templ",
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"uri":"dcs-ug-210622003.html",
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"des":"You can create custom parameter templates for different cache engine versions and instance types based on service requirements.If you select Default Templates, click Cust",
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"uri":"dcs-ug-210622004.html",
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"code":"98",
"des":"You can modify the name, description, and parameters of a custom parameter template based on service requirements.Click Edit in the Operation column.Change the name or mo",
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"uri":"dcs-ug-210622005.html",
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"uri":"dcs-ug-0326016.html",
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"uri":"dcs-ug-0326019.html",
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"uri":"dcs-ug-0312045.html",
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"des":"You can view DCS instance metrics on the Performance Monitoring page.You can also click View Metric in the Operation column on the Cache Manager page. You will be redirec",
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"uri":"dcs-ug-190905001.html",
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"des":"This section describes the alarm rules of some metrics and how to configure the rules. In actual scenarios, configure alarm rules for metrics by referring to the followin",
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"uri":"dcs-ug-0326017.html",
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"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"uri":"dcs-ug-0326018.html",
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"des":"With CTS, you can query, audit, and review operations performed on cloud resources. Traces include the operation requests sent using the management console or open APIs a",
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"uri":"dcs-ug-0312047.html",
"node_id":"dcs-ug-0312047.xml",
"product_code":"dcs",
"code":"106",
"des":"After CTS is enabled, the tracker starts recording operations on cloud resources. Operation records for the last seven days can be viewed on the CTS console. This section",
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"uri":"dcs-migration-230313.html",
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"code":"107",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"uri":"dcs-migration-0713001.html",
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"code":"108",
"des":"Due to variations of Redis application environments and scenarios, migration solutions must be detailed to address actual requirements. The time required for data migrati",
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"uri":"dcs-migration-0312001.html",
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"code":"109",
"des":"Collect the following information about the cached data to be migrated (based on Information to be collected for the migration):Number of instancesNumber of databases (DB",
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"kw":"Migration Process,Data Migration Guide,User Guide",
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"uri":"dcs-migration-090626002.html",
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"product_code":"dcs",
"code":"110",
"des":"Self-hosted Redis refers to self-hosted Redis on this service, in another cloud, or in on-premises data centers.",
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"uri":"dcs-migration-0312002.html",
"node_id":"dcs-migration-0312002.xml",
"product_code":"dcs",
"code":"111",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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"uri":"dcs-migration-190703003.html",
"node_id":"dcs-migration-190703003.xml",
"product_code":"dcs",
"code":"112",
"des":"If the source and target instances are interconnected and the SYNC and PSYNC commands are supported by the source instance, data can be migrated online in full or increme",
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{
"uri":"dcs-migration-190703002.html",
"node_id":"dcs-migration-190703002.xml",
"product_code":"dcs",
"code":"113",
"des":"Use the DCS console to migrate Redis data from Redis of another cloud or self-hosted Redis to DCS for Redis.Simply download the source Redis data and then upload the data",
"doc_type":"usermanual",
"kw":"Backup Migration of Self-Hosted Redis,Migrating Data from Self-Hosted Redis to DCS,User Guide",
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{
"uri":"dcs-migration-0312010.html",
"node_id":"dcs-migration-0312010.xml",
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"code":"114",
"des":"redis-cli is the command line tool of Redis, which can be used after you install the Redis server.Run the following command to download Redis:wget http://download.redis.i",
"doc_type":"usermanual",
"kw":"Self-Hosted Redis Migration with redis-cli (AOF),Migrating Data from Self-Hosted Redis to DCS,User G",
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"title":"Self-Hosted Redis Migration with redis-cli (AOF)",
"githuburl":""
},
{
"uri":"dcs-migration-0312011.html",
"node_id":"dcs-migration-0312011.xml",
"product_code":"dcs",
"code":"115",
"des":"redis-cli is the command line tool of Redis, which can be used after you install the Redis server.redis-cli supports data export as an RDB file. If your Redis service doe",
"doc_type":"usermanual",
"kw":"Self-Hosted Redis Migration with redis-cli (RDB),Migrating Data from Self-Hosted Redis to DCS,User G",
"search_title":"",
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"title":"Self-Hosted Redis Migration with redis-cli (RDB)",
"githuburl":""
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{
"uri":"dcs-migrate-demo02.html",
"node_id":"dcs-migrate-demo02.xml",
"product_code":"dcs",
"code":"116",
"des":"redis-shake is an open-source tool for migrating data online or offline (by importing backup files) between Redis Clusters. Data can be migrated to DCS Redis Cluster inst",
"doc_type":"usermanual",
"kw":"Self-Hosted Redis Cluster Migration with redis-shake,Migrating Data from Self-Hosted Redis to DCS,Us",
"search_title":"",
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"title":"Self-Hosted Redis Cluster Migration with redis-shake",
"githuburl":""
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{
"uri":"dcs-migration-0312008.html",
"node_id":"dcs-migration-0312008.xml",
"product_code":"dcs",
"code":"117",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"doc_type":"usermanual",
"kw":"Migrating Data Between DCS Instances",
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"title":"Migrating Data Between DCS Instances",
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{
"uri":"dcs-migration-0312003.html",
"node_id":"dcs-migration-0312003.xml",
"product_code":"dcs",
"code":"118",
"des":"If the source and target instances are interconnected and the SYNC and PSYNC commands are supported by the source instance, data can be migrated online in full or increme",
"doc_type":"usermanual",
"kw":"Online Migration Between DCS Redis Instances,Migrating Data Between DCS Instances,User Guide",
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"title":"Online Migration Between DCS Redis Instances",
"githuburl":""
},
{
"uri":"dcs-migration-0312004.html",
"node_id":"dcs-migration-0312004.xml",
"product_code":"dcs",
"code":"119",
"des":"Use the DCS console to migrate Redis data from Redis of another cloud or self-hosted Redis to DCS for Redis.Simply download the source Redis data and then upload the data",
"doc_type":"usermanual",
"kw":"Backup Migration Between Regions or Redis Versions,Migrating Data Between DCS Instances,User Guide",
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"title":"Backup Migration Between Regions or Redis Versions",
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{
"uri":"dcs-migration-0312005.html",
"node_id":"dcs-migration-0312005.xml",
"product_code":"dcs",
"code":"120",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"doc_type":"usermanual",
"kw":"Migrating Redis Data from Another Cloud to DCS",
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],
"title":"Migrating Redis Data from Another Cloud to DCS",
"githuburl":""
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{
"uri":"dcs-migration-0312006.html",
"node_id":"dcs-migration-0312006.xml",
"product_code":"dcs",
"code":"121",
"des":"If the source and target instances are interconnected and the SYNC and PSYNC commands are supported by the source instance, data can be migrated online in full or increme",
"doc_type":"usermanual",
"kw":"Online Migration from Another Cloud,Migrating Redis Data from Another Cloud to DCS,User Guide",
"search_title":"",
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"documenttype":"usermanual",
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"title":"Online Migration from Another Cloud",
"githuburl":""
},
{
"uri":"dcs-migration-1117001.html",
"node_id":"dcs-migration-1117001.xml",
"product_code":"dcs",
"code":"122",
"des":"Use the DCS console to migrate Redis data from Redis of another cloud or self-hosted Redis to DCS for Redis.Simply download the source Redis data and then upload the data",
"doc_type":"usermanual",
"kw":"Backup Migration from Another Cloud,Migrating Redis Data from Another Cloud to DCS,User Guide",
"search_title":"",
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"title":"Backup Migration from Another Cloud",
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{
"uri":"dcs-migration-090626001_0.html",
"node_id":"dcs-migration-090626001_0.xml",
"product_code":"dcs",
"code":"123",
"des":"Redis instances provided by some cloud service vendors do not allow SLAVEOF, BGSAVE, and PSYNC commands to be issued from Redis clients. As a result, redis-cli, redis-sha",
"doc_type":"usermanual",
"kw":"Online Migration with Rump,Migrating Redis Data from Another Cloud to DCS,User Guide",
"search_title":"",
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],
"title":"Online Migration with Rump",
"githuburl":""
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{
"uri":"dcs-migrate-1117003.html",
"node_id":"dcs-migrate-1117003.xml",
"product_code":"dcs",
"code":"124",
"des":"redis-shake is an open-source tool for migrating data online or offline (by importing backup files) between Redis Clusters. If the source Redis Cluster is deployed in ano",
"doc_type":"usermanual",
"kw":"Offline Migration of Redis Cluster from Another Cloud with redis-shake,Migrating Redis Data from Ano",
"search_title":"",
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"title":"Offline Migration of Redis Cluster from Another Cloud with redis-shake",
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{
"uri":"dcs-migrate-0220411.html",
"node_id":"dcs-migrate-0220411.xml",
"product_code":"dcs",
"code":"125",
"des":"redis-shake is an open-source Redis migration tool. Its rump mode allows you to obtain the full data of a source Redis using the SCAN command and write the data to a targ",
"doc_type":"usermanual",
"kw":"Online Full Migration of Redis from Another Cloud with redis-shake,Migrating Redis Data from Another",
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"title":"Online Full Migration of Redis from Another Cloud with redis-shake",
"githuburl":""
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{
"uri":"dcs-migration-0312007.html",
"node_id":"dcs-migration-0312007.xml",
"product_code":"dcs",
"code":"126",
"des":"You can use the online migration function of the DCS console to migrate DCS Redis instances to your self-hosted Redis. You can also export the DCS instance data to an RDB",
"doc_type":"usermanual",
"kw":"Migrating Data from DCS to Self-Hosted Redis,Data Migration Guide,User Guide",
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"title":"Migrating Data from DCS to Self-Hosted Redis",
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{
"uri":"dcs-faq-0326019.html",
"node_id":"dcs-faq-0326019.xml",
"product_code":"dcs",
"code":"127",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
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{
"uri":"dcs-faq-0326020.html",
"node_id":"dcs-faq-0326020.xml",
"product_code":"dcs",
"code":"128",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"doc_type":"usermanual",
"kw":"Client and Network Connection",
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"title":"Client and Network Connection",
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{
"uri":"en-us_topic_0090662012.html",
"node_id":"en-us_topic_0090662012.xml",
"product_code":"dcs",
"code":"129",
"des":"DCS helps you control access to your DCS instances in the following ways, depending on the deployment mode:To control access to DCS Redis 3.0 instances, you can use secur",
"doc_type":"usermanual",
"kw":"Security Group Configurations,Client and Network Connection,User Guide",
"search_title":"",
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"opensource":"true",
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"title":"Security Group Configurations",
"githuburl":""
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{
"uri":"dcs-faq-0730001.html",
"node_id":"dcs-faq-0730001.xml",
"product_code":"dcs",
"code":"130",
"des":"No. DCS instances cannot be access at their EIPs over public networks. To ensure security, the ECS that serves as a client and the DCS instance that the client will acces",
"doc_type":"usermanual",
"kw":"Does DCS Support Access over Public Networks?,Client and Network Connection,User Guide",
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"title":"Does DCS Support Access over Public Networks?",
"githuburl":""
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{
"uri":"en-us_topic_0100698850.html",
"node_id":"en-us_topic_0100698850.xml",
"product_code":"dcs",
"code":"131",
"des":"Cross-VPC means the client and the instance are not in the same VPC.Generally, VPCs are isolated from each other and ECSs cannot access DCS instances that belong to a dif",
"doc_type":"usermanual",
"kw":"VPC peering connections,across VPCs,Does DCS Support Cross-VPC Access?,Client and Network Connection",
"search_title":"",
"metedata":[
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"documenttype":"usermanual",
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"title":"Does DCS Support Cross-VPC Access?",
"githuburl":""
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{
"uri":"dcs-faq-0427005.html",
"node_id":"dcs-faq-0427005.xml",
"product_code":"dcs",
"code":"132",
"des":"This is because you have enabled password-free access for the instance. To prevent the error message from appearing, do not enter any password.",
"doc_type":"usermanual",
"kw":"Why Is \"(error) NOAUTH Authentication required\" Displayed When I Access a DCS Redis Instance?,Client",
"search_title":"",
"metedata":[
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"documenttype":"usermanual",
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"IsBot":"Yes"
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"title":"Why Is \"(error) NOAUTH Authentication required\" Displayed When I Access a DCS Redis Instance?",
"githuburl":""
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{
"uri":"dcs-faq-0730004.html",
"node_id":"dcs-faq-0730004.xml",
"product_code":"dcs",
"code":"133",
"des":"Analysis: If persistent connections (\"pconnect\" in Redis terminology) or connection pooling is used and connections are closed after being used for connecting to DCS inst",
"doc_type":"usermanual",
"kw":"What Should I Do If Access to DCS Fails After Server Disconnects?,Client and Network Connection,User",
"search_title":"",
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"documenttype":"usermanual",
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"IsBot":"Yes"
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"title":"What Should I Do If Access to DCS Fails After Server Disconnects?",
"githuburl":""
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{
"uri":"dcs-faq-0730005.html",
"node_id":"dcs-faq-0730005.xml",
"product_code":"dcs",
"code":"134",
"des":"Occasional timeout errors are normal because of network connectivity and client timeout configurations.You are advised to include reconnection operations into your servic",
"doc_type":"usermanual",
"kw":"Why Do Requests Sometimes Time Out in Clients?,Client and Network Connection,User Guide",
"search_title":"",
"metedata":[
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"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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"title":"Why Do Requests Sometimes Time Out in Clients?",
"githuburl":""
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{
"uri":"dcs-faq-0730006.html",
"node_id":"dcs-faq-0730006.xml",
"product_code":"dcs",
"code":"135",
"des":"The error message that will possibly be displayed when you use the Jedis connection pool is as follows:If this error message is displayed, check whether your instance is ",
"doc_type":"usermanual",
"kw":"use the Jedis connection pool,Jedis client,TIME_WAIT,What Should I Do If an Error Is Returned When I",
"search_title":"",
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"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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"title":"What Should I Do If an Error Is Returned When I Use the Jedis Connection Pool?",
"githuburl":""
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{
"uri":"dcs-faq-0730007.html",
"node_id":"dcs-faq-0730007.xml",
"product_code":"dcs",
"code":"136",
"des":"The possible causes are as follows:The command is spelled incorrectly.As shown in the following figure, the error message is returned because the correct command for dele",
"doc_type":"usermanual",
"kw":"Why Is \"ERR unknown command\" Displayed When I Access a DCS Redis Instance Through a Redis Client?,Cl",
"search_title":"",
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"documenttype":"usermanual",
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"title":"Why Is \"ERR unknown command\" Displayed When I Access a DCS Redis Instance Through a Redis Client?",
"githuburl":""
},
{
"uri":"dcs-faq-0730008.html",
"node_id":"dcs-faq-0730008.xml",
"product_code":"dcs",
"code":"137",
"des":"You can access a DCS Redis instance through the Redis Desktop Manager within a VPC.Enter the address, port number (6379), and authentication password of the DCS instance ",
"doc_type":"usermanual",
"kw":"How Do I Access a DCS Redis Instance Through Redis Desktop Manager?,Client and Network Connection,Us",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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"title":"How Do I Access a DCS Redis Instance Through Redis Desktop Manager?",
"githuburl":""
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{
"uri":"dcs-faq-0730009.html",
"node_id":"dcs-faq-0730009.xml",
"product_code":"dcs",
"code":"138",
"des":"By using DCS Redis instances, Spring Session can implement session sharing. When interconnecting with Spring Cloud, the following error information is displayed:For secur",
"doc_type":"usermanual",
"kw":"Spring Session can implement session sharing,What If \"ERR Unsupported CONFIG subcommand\" is Displaye",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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"title":"What If \"ERR Unsupported CONFIG subcommand\" is Displayed in SpringCloud?",
"githuburl":""
},
{
"uri":"dcs-faq-0427015.html",
"node_id":"dcs-faq-0427015.xml",
"product_code":"dcs",
"code":"139",
"des":"A DCS Redis instance can be access with or without a password. You can directly access a DCS Redis instance through a Redis client without setting a password. However, fo",
"doc_type":"usermanual",
"kw":"Is a Password Required for Accessing an Instance? How Do I Set a Password?,Client and Network Connec",
"search_title":"",
"metedata":[
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"prodname":"dcs",
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"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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"title":"Is a Password Required for Accessing an Instance? How Do I Set a Password?",
"githuburl":""
},
{
"uri":"dcs-faq-0730011.html",
"node_id":"dcs-faq-0730011.xml",
"product_code":"dcs",
"code":"140",
"des":"Pay attention to the following issues when using Redis for pub/sub:Your client must process messages in a timely manner.Your client subscribes to a channel. If it does no",
"doc_type":"usermanual",
"kw":"Redis for pub/sub,What Should Be Noted When Using Redis for Pub/Sub?,Client and Network Connection,U",
"search_title":"",
"metedata":[
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"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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"title":"What Should Be Noted When Using Redis for Pub/Sub?",
"githuburl":""
},
{
"uri":"dcs-faq-0730010.html",
"node_id":"dcs-faq-0730010.xml",
"product_code":"dcs",
"code":"141",
"des":"Preliminary checks:Check the connection address.Obtain the connection address from the instance basic information page on the DCS console.Obtain the connection address fr",
"doc_type":"usermanual",
"kw":"How Do I Troubleshoot Redis Connection Failures?,Client and Network Connection,User Guide",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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"title":"How Do I Troubleshoot Redis Connection Failures?",
"githuburl":""
},
{
"uri":"dcs-faq-210721003.html",
"node_id":"dcs-faq-210721003.xml",
"product_code":"dcs",
"code":"142",
"des":"Error message \"Cannot assign requested address\" is returned when you access Redis using connect.Applications that encounter this error typically use php-fpm and phpredis.",
"doc_type":"usermanual",
"kw":"What Can I Do If Error \"Cannot assign requested address\" Is Returned When I Access Redis Using conne",
"search_title":"",
"metedata":[
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"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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],
"title":"What Can I Do If Error \"Cannot assign requested address\" Is Returned When I Access Redis Using connect?",
"githuburl":""
},
{
"uri":"dcs-faq-211230001.html",
"node_id":"dcs-faq-211230001.xml",
"product_code":"dcs",
"code":"143",
"des":"The comparison between Lettuce and Jedis is as follows:LettuceLettuce does not perform connection keepalive detection. If an abnormal connection exists in the connection ",
"doc_type":"usermanual",
"kw":"Connection Pool Selection and Recommended Jedis Parameter Settings,Client and Network Connection,Use",
"search_title":"",
"metedata":[
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"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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"title":"Connection Pool Selection and Recommended Jedis Parameter Settings",
"githuburl":""
},
{
"uri":"dcs-faq-022025.html",
"node_id":"dcs-faq-022025.xml",
"product_code":"dcs",
"code":"144",
"des":"Single-node, and Proxy Cluster:Each instance has only one IP address and one domain name address. The addresses remain unchanged before and after master/standby switchove",
"doc_type":"usermanual",
"kw":"Should I Use a Domain Name or an IP Address to Connect to a DCS Redis Instance?,Client and Network C",
"search_title":"",
"metedata":[
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"documenttype":"usermanual",
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"IsBot":"Yes"
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"title":"Should I Use a Domain Name or an IP Address to Connect to a DCS Redis Instance?",
"githuburl":""
},
{
"uri":"dcs-faq-221222.html",
"node_id":"dcs-faq-221222.xml",
"product_code":"dcs",
"code":"145",
"des":"A master/standby DCS Redis 4.0/5.0/6.0 instance has a Connection Address and a Read-only Address. The connection address is used to connect to the master node of the inst",
"doc_type":"usermanual",
"kw":"Is the Read-only Address of a Master/Standby Instance Connected to the Master or Standby Node?,Clien",
"search_title":"",
"metedata":[
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"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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],
"title":"Is the Read-only Address of a Master/Standby Instance Connected to the Master or Standby Node?",
"githuburl":""
},
{
"uri":"dcs-faq-0326021.html",
"node_id":"dcs-faq-0326021.xml",
"product_code":"dcs",
"code":"146",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"doc_type":"usermanual",
"kw":"Redis Usage",
"search_title":"",
"metedata":[
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"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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],
"title":"Redis Usage",
"githuburl":""
},
{
"uri":"dcs-faq-0730012.html",
"node_id":"dcs-faq-0730012.xml",
"product_code":"dcs",
"code":"147",
"des":"Possible cause 1:The service QPS is so high that the CPU usage spikes to 100%.The service QPS is so high that the CPU usage spikes to 100%.Possible cause 2:You have run c",
"doc_type":"usermanual",
"kw":"Why Is CPU Usage of a DCS Redis Instance 100%?,Redis Usage,User Guide",
"search_title":"",
"metedata":[
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"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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],
"title":"Why Is CPU Usage of a DCS Redis Instance 100%?",
"githuburl":""
},
{
"uri":"dcs-faq-0730013.html",
"node_id":"dcs-faq-0730013.xml",
"product_code":"dcs",
"code":"148",
"des":"No. Once an instance is created, its VPC and subnet cannot be changed. If you want to use a different set of VPC and subnet, create a same instance and specify a desired ",
"doc_type":"usermanual",
"kw":"Can I Change the VPC and Subnet for a DCS Redis Instance?,Redis Usage,User Guide",
"search_title":"",
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
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"IsBot":"Yes"
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],
"title":"Can I Change the VPC and Subnet for a DCS Redis Instance?",
"githuburl":""
},
{
"uri":"dcs-faq-0730014.html",
"node_id":"dcs-faq-0730014.xml",
"product_code":"dcs",
"code":"149",
"des":"Currently, DCS Redis 4.0/5.0/6.0 instances use VPC endpoints and do not support security groups. You can configure whitelists instead. For details, see Managing IP Addres",
"doc_type":"usermanual",
"kw":"Why Aren't Security Groups Configured for DCS Redis 4.0/5.0/6.0 Instances?,Redis Usage,User Guide",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Why Aren't Security Groups Configured for DCS Redis 4.0/5.0/6.0 Instances?",
"githuburl":""
},
{
"uri":"dcs-faq-0730015.html",
"node_id":"dcs-faq-0730015.xml",
"product_code":"dcs",
"code":"150",
"des":"The maximum allowed size of a key is 512 MB.To reduce memory usage and facilitate key query, ensure that each key does not exceed 1 KB.To reduce memory usage and facilita",
"doc_type":"usermanual",
"kw":"Do DCS Redis Instances Limit the Size of a Key or Value?,Redis Usage,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Do DCS Redis Instances Limit the Size of a Key or Value?",
"githuburl":""
},
{
"uri":"dcs-faq-0730017.html",
"node_id":"dcs-faq-0730017.xml",
"product_code":"dcs",
"code":"151",
"des":"Cluster DCS Redis 3.0 instances (Proxy Cluster type) are used in the same way that you use single-node or master/standby instances. You do not need to know the backend no",
"doc_type":"usermanual",
"kw":"Can I Obtain the Addresses of the Nodes in a Cluster DCS Redis Instance?,Redis Usage,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Can I Obtain the Addresses of the Nodes in a Cluster DCS Redis Instance?",
"githuburl":""
},
{
"uri":"dcs-faq-0730018.html",
"node_id":"dcs-faq-0730018.xml",
"product_code":"dcs",
"code":"152",
"des":"DCS Redis 3.0 instances are deployed on VMs and some memory is reserved for system overheads. This problem will not occur on other instance versions.",
"doc_type":"usermanual",
"kw":"Why Is Available Memory Smaller Than Instance Cache Size?,Redis Usage,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Why Is Available Memory Smaller Than Instance Cache Size?",
"githuburl":""
},
{
"uri":"dcs-faq-0730019.html",
"node_id":"dcs-faq-0730019.xml",
"product_code":"dcs",
"code":"153",
"des":"Both single-node and master/standby DCS Redis instances support multiple databases. By default, single-node and master/standby DCS instances can read and write data in 25",
"doc_type":"usermanual",
"kw":"DCS Redis instances support multiple databases,Does DCS for Redis Support Multiple Databases?,Redis ",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Does DCS for Redis Support Multiple Databases?",
"githuburl":""
},
{
"uri":"dcs-faq-0730020.html",
"node_id":"dcs-faq-0730020.xml",
"product_code":"dcs",
"code":"154",
"des":"Yes. DCS for Redis 4.0 and later support Redis Clusters. DCS for Redis 3.0 supports Proxy Clusters.",
"doc_type":"usermanual",
"kw":"Does DCS for Redis Support Redis Clusters?,Redis Usage,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Does DCS for Redis Support Redis Clusters?",
"githuburl":""
},
{
"uri":"dcs-faq-0730021.html",
"node_id":"dcs-faq-0730021.xml",
"product_code":"dcs",
"code":"155",
"des":"Cluster instances and master/standby DCS Redis 4.0 and later instances support Sentinels. Sentinels monitor the running status of both the master and standby nodes of a m",
"doc_type":"usermanual",
"kw":"Does DCS for Redis Support Sentinel?,Redis Usage,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Does DCS for Redis Support Sentinel?",
"githuburl":""
},
{
"uri":"dcs-faq-0730022.html",
"node_id":"dcs-faq-0730022.xml",
"product_code":"dcs",
"code":"156",
"des":"Data is evicted from cache based on a user-defined space limit in order to make space for new data. For details, see the Redis official website. You can view or change th",
"doc_type":"usermanual",
"kw":"What Is the Default Data Eviction Policy?,Redis Usage,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"What Is the Default Data Eviction Policy?",
"githuburl":""
},
{
"uri":"dcs-faq-0730023.html",
"node_id":"dcs-faq-0730023.xml",
"product_code":"dcs",
"code":"157",
"des":"Start the Redis exporter using the CLI. Based on the output, check for errors and troubleshoot accordingly.",
"doc_type":"usermanual",
"kw":"What Should I Do If an Error Occurs in Redis Exporter?,Redis Usage,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"What Should I Do If an Error Occurs in Redis Exporter?",
"githuburl":""
},
{
"uri":"dcs-faq-0730025.html",
"node_id":"dcs-faq-0730025.xml",
"product_code":"dcs",
"code":"158",
"des":"Redisson implements lock acquisition and unlocking in the following process:Redisson lock acquisition and unlocking are implemented by running Lua scripts.During lock acq",
"doc_type":"usermanual",
"kw":"Why Is Redisson Distributed Lock Not Supported by DCS Proxy Cluster Redis 3.0 Instances?,Redis Usage",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Why Is Redisson Distributed Lock Not Supported by DCS Proxy Cluster Redis 3.0 Instances?",
"githuburl":""
},
{
"uri":"dcs-faq-0730026.html",
"node_id":"dcs-faq-0730026.xml",
"product_code":"dcs",
"code":"159",
"des":"You cannot customize or change the port for accessing a DCS Redis 3.0 instance. You can customize (during instance creation) and change the port (on the instance details ",
"doc_type":"usermanual",
"kw":"Can I Customize or Change the Port for Accessing a DCS Instance?,Redis Usage,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Can I Customize or Change the Port for Accessing a DCS Instance?",
"githuburl":""
},
{
"uri":"dcs-faq-0730027.html",
"node_id":"dcs-faq-0730027.xml",
"product_code":"dcs",
"code":"160",
"des":"After a DCS instance is created, its intra-VPC connection addresses cannot be modified.To use a different IP address, you must create a new instance and manually specify ",
"doc_type":"usermanual",
"kw":"Can I Modify the Connection Addresses for Accessing a DCS Instance?,Redis Usage,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Can I Modify the Connection Addresses for Accessing a DCS Instance?",
"githuburl":""
},
{
"uri":"dcs-faq-0730029.html",
"node_id":"dcs-faq-0730029.xml",
"product_code":"dcs",
"code":"161",
"des":"Master/Standby and cluster DCS Redis instances can be deployed across availability zones (AZs).If instance nodes in an AZ are faulty, nodes in other AZs will not be affec",
"doc_type":"usermanual",
"kw":"Does DCS Support Cross-AZ Deployment?,Redis Usage,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Does DCS Support Cross-AZ Deployment?",
"githuburl":""
},
{
"uri":"dcs-faq-0730030.html",
"node_id":"dcs-faq-0730030.xml",
"product_code":"dcs",
"code":"162",
"des":"Possible cause: When a cluster instance is started, status and data are synchronized between the nodes of the instance. If a large amount of data is continuously written ",
"doc_type":"usermanual",
"kw":"Why Does It Take a Long Time to Start a Cluster DCS Instance?,Redis Usage,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Why Does It Take a Long Time to Start a Cluster DCS Instance?",
"githuburl":""
},
{
"uri":"dcs-faq-0730032.html",
"node_id":"dcs-faq-0730032.xml",
"product_code":"dcs",
"code":"163",
"des":"No. If you wish to query Redis configurations and usage information, use redis-cli. If you wish to monitor DCS Redis instance metrics, go to the Cloud Eye console. For de",
"doc_type":"usermanual",
"kw":"Does DCS for Redis Provide Backend Management Software?,Redis Usage,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Does DCS for Redis Provide Backend Management Software?",
"githuburl":""
},
{
"uri":"dcs-faq-0730034.html",
"node_id":"dcs-faq-0730034.xml",
"product_code":"dcs",
"code":"164",
"des":"If a DCS instance is automatically deleted or manually deleted through the Redis client, its data cannot be retrieved. If you have backed up the instance, you can restore",
"doc_type":"usermanual",
"kw":"Can I Recover Data from Deleted DCS Instances?,Redis Usage,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Can I Recover Data from Deleted DCS Instances?",
"githuburl":""
},
{
"uri":"dcs-faq-210223001.html",
"node_id":"dcs-faq-210223001.xml",
"product_code":"dcs",
"code":"165",
"des":"Symptom: \"Error in execution; nested exception is io.lettuce.core.RedisCommandExecutionException: OOM command not allowed when used memory > 'maxmemory'\" is returned duri",
"doc_type":"usermanual",
"kw":"Why Is \"Error in execution\" Returned When I Access Redis?,Redis Usage,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Why Is \"Error in execution\" Returned When I Access Redis?",
"githuburl":""
},
{
"uri":"dcs-faq-210409001.html",
"node_id":"dcs-faq-210409001.xml",
"product_code":"dcs",
"code":"166",
"des":"Normally, Redis keys do not disappear. If a key is missing, it may have expired, been evicted, or been deleted.Perform the following checks one by one:Check whether the k",
"doc_type":"usermanual",
"kw":"Why Does a Key Disappear in Redis?,Redis Usage,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Why Does a Key Disappear in Redis?",
"githuburl":""
},
{
"uri":"dcs-faq-211228001.html",
"node_id":"dcs-faq-211228001.xml",
"product_code":"dcs",
"code":"167",
"des":"Multi-key operations, such as those using the MSET command or Lua scripts, are atomic. All specified keys are executed at the same time. However, in a cluster, each key i",
"doc_type":"usermanual",
"kw":"Explaining and Using Hash Tags,Redis Usage,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Explaining and Using Hash Tags",
"githuburl":""
},
{
"uri":"dcs-faq-0220330.html",
"node_id":"dcs-faq-0220330.xml",
"product_code":"dcs",
"code":"168",
"des":"After a single-node DCS instance is restarted, data in the instance is deleted.Master/Standby and cluster instances (except single-replica clusters) support AOF persisten",
"doc_type":"usermanual",
"kw":"Will Cached Data Be Retained After an Instance Is Restarted?,Redis Usage,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Will Cached Data Be Retained After an Instance Is Restarted?",
"githuburl":""
},
{
"uri":"dcs-faq-190921003.html",
"node_id":"dcs-faq-190921003.xml",
"product_code":"dcs",
"code":"169",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"doc_type":"usermanual",
"kw":"Redis Commands",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Redis Commands",
"githuburl":""
},
{
"uri":"dcs-faq-0730036.html",
"node_id":"dcs-faq-0730036.xml",
"product_code":"dcs",
"code":"170",
"des":"Exercise caution when clearing data.Redis 3.0Data of a DCS Redis 3.0 instance cannot be cleared on the console, and can only be cleared by the FLUSHDB or FLUSHALL command",
"doc_type":"usermanual",
"kw":"How Do I Clear Redis Data?,Redis Commands,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"How Do I Clear Redis Data?",
"githuburl":""
},
{
"uri":"dcs-faq-0730039.html",
"node_id":"dcs-faq-0730039.xml",
"product_code":"dcs",
"code":"171",
"des":"Yes. For more information about Redis command compatibility, see Command Compatibility.",
"doc_type":"usermanual",
"kw":"Does DCS for Redis Support the INCR and EXPIRE Commands?,Redis Commands,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Does DCS for Redis Support the INCR and EXPIRE Commands?",
"githuburl":""
},
{
"uri":"dcs-faq-0730040.html",
"node_id":"dcs-faq-0730040.xml",
"product_code":"dcs",
"code":"172",
"des":"Possible causes include the following:The command is incorrect.As shown in the following figure, the error message is returned because the correct command for deleting a ",
"doc_type":"usermanual",
"kw":"Why Do I Fail to Execute Some Redis Commands?,Redis Commands,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Why Do I Fail to Execute Some Redis Commands?",
"githuburl":""
},
{
"uri":"dcs-faq-0730041.html",
"node_id":"dcs-faq-0730041.xml",
"product_code":"dcs",
"code":"173",
"des":"Run the command in redis-cli to check whether the command takes effect.The following describes two scenarios:Scenario 1: Set and query the value of a key to check whether",
"doc_type":"usermanual",
"kw":"Why Does a Redis Command Fail to Take Effect?,Redis Commands,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Why Does a Redis Command Fail to Take Effect?",
"githuburl":""
},
{
"uri":"dcs-faq-0427057.html",
"node_id":"dcs-faq-0427057.xml",
"product_code":"dcs",
"code":"174",
"des":"Redis command timeouts can be controlled on the client end or server end.Timeouts on the client end are controlled in the client code. You can determine the timeouts that",
"doc_type":"usermanual",
"kw":"Is There a Time Limit on Executing Redis Commands? What Will Happen If a Command Times Out?,Redis Co",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Is There a Time Limit on Executing Redis Commands? What Will Happen If a Command Times Out?",
"githuburl":""
},
{
"uri":"dcs-faq-0427058.html",
"node_id":"dcs-faq-0427058.xml",
"product_code":"dcs",
"code":"175",
"des":"No. Like in open-source Redis, keys in DCS for Redis are case-sensitive and cannot be configured to be case-insensitive.",
"doc_type":"usermanual",
"kw":"Can I Configure Redis Keys to Be Case-Insensitive?,Redis Commands,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Can I Configure Redis Keys to Be Case-Insensitive?",
"githuburl":""
},
{
"uri":"dcs-faq-0624001.html",
"node_id":"dcs-faq-0624001.xml",
"product_code":"dcs",
"code":"176",
"des":"No. Redis does not record commands and does not support viewing the most frequently used commands.",
"doc_type":"usermanual",
"kw":"Can I View the Most Frequently Used Redis Commands?,Redis Commands,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Can I View the Most Frequently Used Redis Commands?",
"githuburl":""
},
{
"uri":"dcs-faq-0326022.html",
"node_id":"dcs-faq-0326022.xml",
"product_code":"dcs",
"code":"177",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"doc_type":"usermanual",
"kw":"Instance Scaling and Upgrade",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Instance Scaling and Upgrade",
"githuburl":""
},
{
"uri":"dcs-faq-0730043.html",
"node_id":"dcs-faq-0730043.xml",
"product_code":"dcs",
"code":"178",
"des":"No. Different Redis versions use different underlying architectures. The Redis version used by a DCS instance cannot be changed once the instance is created. For example,",
"doc_type":"usermanual",
"kw":"Can DCS Redis Instances Be Upgraded, for Example, from Redis 4.0 to 5.0?,Instance Scaling and Upgrad",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Can DCS Redis Instances Be Upgraded, for Example, from Redis 4.0 to 5.0?",
"githuburl":""
},
{
"uri":"dcs-faq-0730044.html",
"node_id":"dcs-faq-0730044.xml",
"product_code":"dcs",
"code":"179",
"des":"O&M personnel will contact you before performing maintenance during the maintenance time window, informing you of the operations and their impacts. You do not need to wor",
"doc_type":"usermanual",
"kw":"Are Services Interrupted If Maintenance is Performed During the Maintenance Time Window?,Instance Sc",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Are Services Interrupted If Maintenance is Performed During the Maintenance Time Window?",
"githuburl":""
},
{
"uri":"dcs-faq-0730045.html",
"node_id":"dcs-faq-0730045.xml",
"product_code":"dcs",
"code":"180",
"des":"No. Specification modifications can take place while the instance is running and do not affect any other resources.",
"doc_type":"usermanual",
"kw":"Are Instances Stopped or Restarted During Specification Modification?,Instance Scaling and Upgrade,U",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Are Instances Stopped or Restarted During Specification Modification?",
"githuburl":""
},
{
"uri":"dcs-faq-0730047.html",
"node_id":"dcs-faq-0730047.xml",
"product_code":"dcs",
"code":"181",
"des":"You are advised to change the instance specifications during off-peak hours because specification modification has the following impacts:Supported instance type changes:F",
"doc_type":"usermanual",
"kw":"Are Services Interrupted During Specification Modification?,Instance Scaling and Upgrade,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Are Services Interrupted During Specification Modification?",
"githuburl":""
},
{
"uri":"dcs-faq-0730048.html",
"node_id":"dcs-faq-0730048.xml",
"product_code":"dcs",
"code":"182",
"des":"Check whether other tasks are running.Specifications of a DCS instance cannot be modified if another task of the instance is still running. For example, you cannot delete",
"doc_type":"usermanual",
"kw":"Why Can't I Modify Specifications for a DCS Redis Instance?,Instance Scaling and Upgrade,User Guide",
"search_title":"",
"metedata":[
{
"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Why Can't I Modify Specifications for a DCS Redis Instance?",
"githuburl":""
},
{
"uri":"dcs-faq-0326023.html",
"node_id":"dcs-faq-0326023.xml",
"product_code":"dcs",
"code":"183",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"doc_type":"usermanual",
"kw":"Monitoring and Alarm",
"search_title":"",
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"uri":"dcs-faq-0427070.html",
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"code":"184",
"des":"The number of connections received by a DCS instance is a metric that is monitored by Cloud Eye. For details on how to view metrics, see Viewing DCS Monitoring Metrics.On",
"doc_type":"usermanual",
"kw":"How Do I View Current Concurrent Connections and Maximum Connections of a DCS Redis Instance?,Monito",
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"title":"How Do I View Current Concurrent Connections and Maximum Connections of a DCS Redis Instance?",
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"uri":"dcs-faq-0730049.html",
"node_id":"dcs-faq-0730049.xml",
"product_code":"dcs",
"code":"185",
"des":"No. To ensure high-performance reads and writes, Redis does not audit commands. Commands are not printed.",
"doc_type":"usermanual",
"kw":"Does Redis Support Command Audits?,Monitoring and Alarm,User Guide",
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"title":"Does Redis Support Command Audits?",
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"uri":"dcs-faq-0730050.html",
"node_id":"dcs-faq-0730050.xml",
"product_code":"dcs",
"code":"186",
"des":"If you have any doubt on the monitoring data of a DCS Redis instance, you can access the instance through redis-cli and run the INFO ALL command to view the metrics. For ",
"doc_type":"usermanual",
"kw":"What Should I Do If the Monitoring Data of a DCS Redis Instance Is Abnormal?,Monitoring and Alarm,Us",
"search_title":"",
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"title":"What Should I Do If the Monitoring Data of a DCS Redis Instance Is Abnormal?",
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"uri":"dcs-faq-0730052.html",
"node_id":"dcs-faq-0730052.xml",
"product_code":"dcs",
"code":"187",
"des":"For single-node and master/standby DCS instances, the used instance memory is measured by the Redis-server process. For cluster DCS instances, the used cluster memory is ",
"doc_type":"usermanual",
"kw":"used instance memory is normally slightly higher than the available instance memory,Why Is Used Memo",
"search_title":"",
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"title":"Why Is Used Memory Greater Than Available Memory?",
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"uri":"dcs-faq-0513001.html",
"node_id":"dcs-faq-0513001.xml",
"product_code":"dcs",
"code":"188",
"des":"The basic information about the bandwidth usage metric is as follows.Bandwidth usage = (Input flow + Output flow)/(2 x Maximum bandwidth) x 100%According to the formula, ",
"doc_type":"usermanual",
"kw":"Why Does Bandwidth Usage Exceed 100%?,Monitoring and Alarm,User Guide",
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"title":"Why Does Bandwidth Usage Exceed 100%?",
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"uri":"dcs-faq-0603001.html",
"node_id":"dcs-faq-0603001.xml",
"product_code":"dcs",
"code":"189",
"des":"If the Rejected Connections metric is displayed, check if the number of connected clients exceeds the maximum allowed number of connections of the instances.To check the ",
"doc_type":"usermanual",
"kw":"Why Is the Rejected Connections Metric Displayed?,Monitoring and Alarm,User Guide",
"search_title":"",
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"title":"Why Is the Rejected Connections Metric Displayed?",
"githuburl":""
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{
"uri":"dcs-faq-0220721.html",
"node_id":"dcs-faq-0220721.xml",
"product_code":"dcs",
"code":"190",
"des":"Flow control is triggered when the traffic used by a Redis instance in a period exceeds the maximum bandwidth.For details about the maximum bandwidth of an instance flavo",
"doc_type":"usermanual",
"kw":"Why Is Flow Control Triggered? How Do I Handle It?,Monitoring and Alarm,User Guide",
"search_title":"",
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"title":"Why Is Flow Control Triggered? How Do I Handle It?",
"githuburl":""
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{
"uri":"dcs-faq-0326024.html",
"node_id":"dcs-faq-0326024.xml",
"product_code":"dcs",
"code":"191",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"doc_type":"usermanual",
"kw":"Data Backup, Export, and Migration",
"search_title":"",
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"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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"title":"Data Backup, Export, and Migration",
"githuburl":""
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{
"uri":"dcs-faq-0730053.html",
"node_id":"dcs-faq-0730053.xml",
"product_code":"dcs",
"code":"192",
"des":"For master/standby or cluster instances:Perform the following operations to export the data:On the Backups & Restorations page, view the backup records.If there are no ba",
"doc_type":"usermanual",
"kw":"How Do I Export DCS Redis Instance Data?,Data Backup, Export, and Migration,User Guide",
"search_title":"",
"metedata":[
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"documenttype":"usermanual",
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"title":"How Do I Export DCS Redis Instance Data?",
"githuburl":""
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{
"uri":"dcs-faq-0730054.html",
"node_id":"dcs-faq-0730054.xml",
"product_code":"dcs",
"code":"193",
"des":"Redis 3.0No. On the console, backup data of a DCS Redis 3.0 instance can be exported only to AOF files. To export data to RDB files, run the following command in redis-cl",
"doc_type":"usermanual",
"kw":"Can I Export Backup Data of DCS Redis Instances to RDB Files Using the Console?,Data Backup, Export,",
"search_title":"",
"metedata":[
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"title":"Can I Export Backup Data of DCS Redis Instances to RDB Files Using the Console?",
"githuburl":""
},
{
"uri":"dcs-faq-0427081.html",
"node_id":"dcs-faq-0427081.xml",
"product_code":"dcs",
"code":"194",
"des":"DCS Redis instances:Single-node: Data persistence is not supported.Master/standby and cluster (except single-replica clusters): Data persistence is supported.Single-node:",
"doc_type":"usermanual",
"kw":"Does DCS Support Data Persistence? What Is the Impact of Persistence?,Data Backup, Export, and Migra",
"search_title":"",
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"title":"Does DCS Support Data Persistence? What Is the Impact of Persistence?",
"githuburl":""
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{
"uri":"dcs-faq-210706001.html",
"node_id":"dcs-faq-210706001.xml",
"product_code":"dcs",
"code":"195",
"des":"AOF rewrites involve the following concepts:Rewrite window, which is currently 01:00 to 04:59Disk usage threshold, which is 50%Dataset memory, which is the percentage of ",
"doc_type":"usermanual",
"kw":"When Will AOF Rewrites Be Triggered?,Data Backup, Export, and Migration,User Guide",
"search_title":"",
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"title":"When Will AOF Rewrites Be Triggered?",
"githuburl":""
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{
"uri":"dcs-faq-220317.html",
"node_id":"dcs-faq-220317.xml",
"product_code":"dcs",
"code":"196",
"des":"No. A migration task allows data to be migrated to only one target instance. To migrate data to multiple target instances, create multiple migration tasks.",
"doc_type":"usermanual",
"kw":"Can I Migrate Data to Multiple Target Instances in One Migration Task?,Data Backup, Export, and Migr",
"search_title":"",
"metedata":[
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"title":"Can I Migrate Data to Multiple Target Instances in One Migration Task?",
"githuburl":""
},
{
"uri":"dcs-faq-210721001.html",
"node_id":"dcs-faq-210721001.xml",
"product_code":"dcs",
"code":"197",
"des":"Migration within DCS:By default, the SYNC and PSYNC commands can be used when self-hosted Redis is migrated to DCS.During online migration between DCS Redis instances in ",
"doc_type":"usermanual",
"kw":"How Do I Enable the SYNC and PSYNC Commands?,Data Backup, Export, and Migration,User Guide",
"search_title":"",
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"documenttype":"usermanual",
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"title":"How Do I Enable the SYNC and PSYNC Commands?",
"githuburl":""
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{
"uri":"dcs-faq-210721002.html",
"node_id":"dcs-faq-210721002.xml",
"product_code":"dcs",
"code":"198",
"des":"Possible causes:The underlying resources are insufficient.The specifications of the ECS used for the migration are insufficient.The memory of the target Redis created bef",
"doc_type":"usermanual",
"kw":"Why Does Migration Task Creation Fail?,Data Backup, Export, and Migration,User Guide",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Why Does Migration Task Creation Fail?",
"githuburl":""
},
{
"uri":"dcs-faq-11185.html",
"node_id":"dcs-faq-11185.xml",
"product_code":"dcs",
"code":"199",
"des":"If the data exists on both the source and target instances, the target data is overwritten by the source data. If the data exists only on the target instance, the data wi",
"doc_type":"usermanual",
"kw":"Will the Same Keys Be Overwritten During Data Migration or Backup Import?,Data Backup, Export, and M",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Will the Same Keys Be Overwritten During Data Migration or Backup Import?",
"githuburl":""
},
{
"uri":"dcs-migration-090626001.html",
"node_id":"dcs-migration-090626001.xml",
"product_code":"dcs",
"code":"200",
"des":"Rump is an open-source tool designed for migrating Redis data online. It supports migration between DBs of the same instance and between DBs of different instances.Rump u",
"doc_type":"usermanual",
"kw":"Online Migration with Rump,Data Backup, Export, and Migration,User Guide",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Online Migration with Rump",
"githuburl":""
},
{
"uri":"dcs-migration-0312016.html",
"node_id":"dcs-migration-0312016.xml",
"product_code":"dcs",
"code":"201",
"des":"Convert the format of a data file before importing the file.Run the following command to convert the format of a file in the Windows OS to that in the Unix-like OS:dos2un",
"doc_type":"usermanual",
"kw":"What Should I Consider When Transferring or Operating Data Between Different OSs?,Data Backup, Expor",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"What Should I Consider When Transferring or Operating Data Between Different OSs?",
"githuburl":""
},
{
"uri":"dcs-migration-0312017.html",
"node_id":"dcs-migration-0312017.xml",
"product_code":"dcs",
"code":"202",
"des":"A total of 256 DBs (DB 0 to DB 255) can be configured for a single-node or master/standby DCS instance.If the target is a cluster instance (a cluster instance has only on",
"doc_type":"usermanual",
"kw":"Can I Migrate Data from a Multi-DB Source Redis Instance to a Cluster DCS Redis Instance?,Data Backu",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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],
"title":"Can I Migrate Data from a Multi-DB Source Redis Instance to a Cluster DCS Redis Instance?",
"githuburl":""
},
{
"uri":"dcs-migration-0312018.html",
"node_id":"dcs-migration-0312018.xml",
"product_code":"dcs",
"code":"203",
"des":"The online migration function provided on the console does not support migration of specified DBs. If you want to migrate specified Redis DBs, use redis-shake to export o",
"doc_type":"usermanual",
"kw":"How Can I Migrate Partial Data?,Data Backup, Export, and Migration,User Guide",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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],
"title":"How Can I Migrate Partial Data?",
"githuburl":""
},
{
"uri":"dcs-migration-0312019.html",
"node_id":"dcs-migration-0312019.xml",
"product_code":"dcs",
"code":"204",
"des":"Proxy Cluster instancesProxy Cluster instances are used in the same way that you use single-node or master/standby instances. However, only one DB is configured for a Pro",
"doc_type":"usermanual",
"kw":"What Are the Constraints and Precautions for Migrating Redis Data to a Cluster Instance?,Data Backup",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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],
"title":"What Are the Constraints and Precautions for Migrating Redis Data to a Cluster Instance?",
"githuburl":""
},
{
"uri":"dcs-migration-0312020.html",
"node_id":"dcs-migration-0312020.xml",
"product_code":"dcs",
"code":"205",
"des":"NetworkBefore online migration, ensure that the network configured for the migration task is connected to source and target Redis instances.Before online migration, ensur",
"doc_type":"usermanual",
"kw":"What Should I Consider for Online Migration?,Data Backup, Export, and Migration,User Guide",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"What Should I Consider for Online Migration?",
"githuburl":""
},
{
"uri":"dcs-migration-0312021.html",
"node_id":"dcs-migration-0312021.xml",
"product_code":"dcs",
"code":"206",
"des":"Yes. You can use the application dual-write mode. In this mode, during data migration, data is still read from the source Redis instance, and operations such as adding, d",
"doc_type":"usermanual",
"kw":"Can I Perform Online Migration Without Any Service Interruption?,Data Backup, Export, and Migration,",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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],
"title":"Can I Perform Online Migration Without Any Service Interruption?",
"githuburl":""
},
{
"uri":"dcs-migration-211125001.html",
"node_id":"dcs-migration-211125001.xml",
"product_code":"dcs",
"code":"207",
"des":"The following error messages may be displayed during online migration:\"Disconnecting timedout slave\" is reported on the source instance, as shown in the following figure:",
"doc_type":"usermanual",
"kw":"What If \"Disconnecting timedout slave\" and \"overcoming of output buffer limits\" Are Reported on the ",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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],
"title":"What If \"Disconnecting timedout slave\" and \"overcoming of output buffer limits\" Are Reported on the Source Instance During Online Migration?",
"githuburl":""
},
{
"uri":"dcs-faq-0427076.html",
"node_id":"dcs-faq-0427076.xml",
"product_code":"dcs",
"code":"208",
"des":"For details on how to use Rump, see the Data Migration Guide.Possible causes:Rump does not support migration to cluster DCS instances.Commands are incorrectly run in Rump",
"doc_type":"usermanual",
"kw":"Why Is Memory of a DCS Redis Instance Unchanged After Data Migration Using Rump, Even If No Error Me",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"Why Is Memory of a DCS Redis Instance Unchanged After Data Migration Using Rump, Even If No Error Message Is Returned?",
"githuburl":""
},
{
"uri":"dcs-migration-0715005.html",
"node_id":"dcs-migration-0715005.xml",
"product_code":"dcs",
"code":"209",
"des":"Yes. Redis is backward compatible.The version of the source Redis (DCS, self-built, or another cloud) can be earlier than or the same as the target DCS instance.",
"doc_type":"usermanual",
"kw":"Can I Migrate Data from a Lower Redis Version to a Higher One?,Data Backup, Export, and Migration,Us",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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],
"title":"Can I Migrate Data from a Lower Redis Version to a Higher One?",
"githuburl":""
},
{
"uri":"dcs-faq-0805001.html",
"node_id":"dcs-faq-0805001.xml",
"product_code":"dcs",
"code":"210",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"doc_type":"usermanual",
"kw":"Big/Hot Key Analysis and Expired Key Scan",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
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],
"title":"Big/Hot Key Analysis and Expired Key Scan",
"githuburl":""
},
{
"uri":"dcs-faq-0521003.html",
"node_id":"dcs-faq-0521003.xml",
"product_code":"dcs",
"code":"211",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"doc_type":"usermanual",
"kw":"What Are Big Keys and Hot Keys?,Big/Hot Key Analysis and Expired Key Scan,User Guide",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"What Are Big Keys and Hot Keys?",
"githuburl":""
},
{
"uri":"dcs-faq-0521004.html",
"node_id":"dcs-faq-0521004.xml",
"product_code":"dcs",
"code":"212",
"des":"HUAWEI CLOUD Help Center presents technical documents to help you quickly get started with HUAWEI CLOUD services. The technical documents include Service Overview, Price Details, Purchase Guide, User Guide, API Reference, Best Practices, FAQs, and Videos.",
"doc_type":"usermanual",
"kw":"What Is the Impact of Big Keys or Hot Keys?,Big/Hot Key Analysis and Expired Key Scan,User Guide",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"What Is the Impact of Big Keys or Hot Keys?",
"githuburl":""
},
{
"uri":"dcs-faq-0521005.html",
"node_id":"dcs-faq-0521005.xml",
"product_code":"dcs",
"code":"213",
"des":"Keep the size of Strings within 10 KB and the quantity of Hashes, Lists, Sets, or Zsets within 5000.When naming keys, use the service name abbreviation as the prefix and ",
"doc_type":"usermanual",
"kw":"How Do I Avoid Big Keys and Hot Keys?,Big/Hot Key Analysis and Expired Key Scan,User Guide",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"How Do I Avoid Big Keys and Hot Keys?",
"githuburl":""
},
{
"uri":"dcs-faq-0521006.html",
"node_id":"dcs-faq-0521006.xml",
"product_code":"dcs",
"code":"214",
"des":"DCS for Redis 3.0 does not support hot key analysis on the console. Alternatively, you can use the following methods to analyze hot keys:Method 1: Analyze the service str",
"doc_type":"usermanual",
"kw":"How Do I Analyze the Hot Keys of a DCS Redis 3.0 Instance?,Big/Hot Key Analysis and Expired Key Scan",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"How Do I Analyze the Hot Keys of a DCS Redis 3.0 Instance?",
"githuburl":""
},
{
"uri":"dcs-faq-0606002.html",
"node_id":"dcs-faq-0606002.xml",
"product_code":"dcs",
"code":"215",
"des":"Hot key analysis is not supported by DCS Redis 3.0 instances. You can configure alarms to detect hot keys.Configure alarm rules for the Memory Usage metric of the instanc",
"doc_type":"usermanual",
"kw":"How Do I Detect Big Keys and Hot Keys in Advance?,Big/Hot Key Analysis and Expired Key Scan,User Gui",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"How Do I Detect Big Keys and Hot Keys in Advance?",
"githuburl":""
},
{
"uri":"dcs-faq-210531002.html",
"node_id":"dcs-faq-210531002.xml",
"product_code":"dcs",
"code":"216",
"des":"What are the rules for scheduled deletion of expired keys on a daily basis? Can I customize the rules?Lazy free deletion: The deletion strategy is controlled in the main ",
"doc_type":"usermanual",
"kw":"How Does DCS Delete Expired Keys?,Big/Hot Key Analysis and Expired Key Scan,User Guide",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"How Does DCS Delete Expired Keys?",
"githuburl":""
},
{
"uri":"dcs-faq-210812001.html",
"node_id":"dcs-faq-210812001.xml",
"product_code":"dcs",
"code":"217",
"des":"Key storage durationKeys that do not have an expiration are stored permanently.Keys that have an expiration are deleted after they expire. For details, see Scanning Expir",
"doc_type":"usermanual",
"kw":"How Long Are Keys Stored? How Do I Set Key Expiration?,Big/Hot Key Analysis and Expired Key Scan,Use",
"search_title":"",
"metedata":[
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"prodname":"dcs",
"opensource":"true",
"documenttype":"usermanual",
"IsMulti":"Yes",
"IsBot":"Yes"
}
],
"title":"How Long Are Keys Stored? How Do I Set Key Expiration?",
"githuburl":""
},
{
"uri":"dcs-faq-191204001.html",
"node_id":"dcs-faq-191204001.xml",
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"code":"218",
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