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Reviewed-by: Wagner, Fabian <fabian.wagner@t-systems.com> Co-authored-by: proposalbot <proposalbot@otc-service.com> Co-committed-by: proposalbot <proposalbot@otc-service.com>
37 lines
5.7 KiB
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37 lines
5.7 KiB
ReStructuredText
:original_name: gaussdb_01_0008.html
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.. _gaussdb_01_0008:
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Constraints
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===========
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:ref:`Table 1 <gaussdb_01_0008__en-us_topic_0171122409_table60364850123535>` shows the constraints designed to ensure the stability and security of GaussDB(for MySQL).
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.. _gaussdb_01_0008__en-us_topic_0171122409_table60364850123535:
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.. table:: **Table 1** Function constraints
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+------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| Function | Constraints |
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+====================================+=================================================================================================================================================================================================+
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| GaussDB(for MySQL) access | - If GaussDB(for MySQL) DB instances are not bound with EIPs, the DB instances must be in the same VPC subnet as the ECSs associated with these instances. |
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| | |
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| | - Security group rules must be added to allow ECSs to access GaussDB(for MySQL) DB instances. |
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| | By default, a GaussDB(for MySQL) DB instance cannot be accessed by an ECS in a different security group. To allow it, you must add an inbound rule to the GaussDB(for MySQL) security group. |
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| | - The default GaussDB(for MySQL) DB instance port is **3306**. You can change it if you want to access GaussDB(for MySQL) through another port. |
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+------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| Deployment | ECSs in which GaussDB(for MySQL) DB instances are deployed are not visible to users. You can access GaussDB(for MySQL) DB instances only over an IP address and a port. |
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+------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| Administrator root permission | Only the **root** user permissions are available on the instance creation page. |
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+------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| Database parameter modification | Most parameters can be modified on the GaussDB(for MySQL) console. |
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+------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| Data migration | The mysqldump tool is used to migrate data to GaussDB(for MySQL). |
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+------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| GaussDB(for MySQL) instance reboot | GaussDB(for MySQL) instances cannot be rebooted through commands. They must be rebooted on the GaussDB(for MySQL) console. |
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+------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| GaussDB(for MySQL) backup files | GaussDB(for MySQL) backup files are stored in OBS buckets and are not visible to users. |
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+------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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