doc-exports/docs/gaussdb_nosql/umn/nosql_03_0011.html

GaussDB(for Cassandra) Monitoring Metrics

Description

This section describes GaussDB(for Cassandra) metrics reported to Cloud Eye as well as their namespaces and dimensions. You can use APIs provided by Cloud Eye to query the metrics of the monitored object and alarms generated for GaussDB(for Cassandra).

Namespace

SYS.NoSQL

Metrics

Table 1 Metrics

Metric	Name	Description	Value Range	Monitored Object	Monitoring Interval (Raw Data)
nosql005_disk_usage	Storage Space Usage	Storage space usage of the monitored object Unit: Percent	0-100%	Measured object: ECS Monitored object: GaussDB NoSQL instance	1 minute
nosql006_disk_total_size	Total Storage Space	Total storage space of the monitored object Unit: GB	≥ 0 GB	Measured object: ECS Monitored object: GaussDB NoSQL instance	1 minute
nosql007_disk_used_size	Used Storage Space	Used storage space of the monitored object Unit: GB	≥ 0 GB	Measured object: ECS Monitored object: GaussDB NoSQL instance	1 minute
cassandra001_cpu_usage	CPU Usage	CPU usage of an instance Unit: Percent	0-100%	Measured object: ECS Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra002_mem_usage	Memory Usage	Memory usage of the instance Unit: Percent	0-100%	Measured object: ECS Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra003_bytes_out	Network Output Throughput	Outgoing traffic in bytes per second Unit: byte/s	≥ 0 Bytes/s	Measured object: ECS Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra004_bytes_in	Network Input Throughput	Incoming traffic in bytes per second Unit: byte/s	≥ 0 Bytes/s	Measured object: ECS Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra014_connections	Active Node Connections	Total number of connections attempting to connect to Cassandra instance nodes Unit: count	≥ 0 Counts	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra015_read_latency	Average Read Latency	Average amount of time consumed by read requests Unit: ms	≥ 0 ms	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra016_write_latency	Average Write Latency	Average amount of time consumed by write requests Unit: ms	≥ 0 ms	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra037_pending_write	Suspended Write Tasks	Number of write tasks in waiting status Unit: count	≥ 0 Counts	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra038_pending_read	Suspended Read Tasks	Number of read tasks in waiting status Unit: count	≥ 0 Counts	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra044_range_slice_latency	Scan Duration	Average amount of time consumed by scan operations Unit: ms	≥ 0 ms	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra049_dropped_mutation	Dropped Writes	Average number of dropped writes Unit: Count	≥ 0 Counts	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra052_dropped_read	Dropped Reads	Average number of dropped reads Unit: Count	≥ 0 Counts	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra092_load_info	Data Volume on a Node	Data volume on a node Unit: byte	≥ 0 Bytes	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra093_write_count_latency	Accumulated Write Requests	Total number of write requests initiated by a node Unit: count	≥ 0 Counts	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra094_write_1min_rate	Average Write Rate in the Last Minute	Average write rate in the last minute Unit: Count	≥ 0 Counts	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra095_write_p75_latency	P75 Write Latency	P75 write latency Unit: ms	≥ 0 ms	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra096_write_p95_latency	P95 Write Latency	P95 write latency Unit: ms	≥ 0 ms	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra097_write_p99_latency	P99 Write Latency	P99 write latency Unit: ms	≥ 0 ms	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra098_read_count_latency	Accumulated Read Requests	Total number of read requests initiated by a node Unit: count	≥ 0 Counts	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra099_read_1min_rate	Average Read Rate in the Last Minute	Average read rate in the last minute Unit: Count	≥ 0 Counts	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra100_read_p75_latency	P75 Read Latency	P75 read latency Unit: ms	≥ 0 ms	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra101_read_p95_latency	P95 Read Latency	P95 read latency Unit: ms	≥ 0 ms	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra102_read_p99_latency	P99 Read Latency	P99 read latency Unit: ms	≥ 0 ms	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra103_range_slice_count_latency	Accumulated Range Read Requests	Accumulated range read requests Unit: Count	≥ 0 Counts	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra104_range_slice_1min_rate	Average Range Read Rate in the Last Minute	Average range read rate in the last minute Unit: Count	≥ 0 Counts	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra105_range_slice_p75_latency	P75 Range Read Latency	P75 range read latency Unit: ms	≥ 0 ms	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra106_range_slice_p95_latency	P95 Range Read Latency	P95 range read latency Unit: ms	≥ 0 ms	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra107_range_slice_p99_latency	P99 Range Read Latency	P99 range read latency Unit: ms	≥ 0 ms	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra163_write_p999_latency	P999 Write Latency	P999 write latency Unit: ms	≥ 0 ms	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra164_read_p999_latency	P999 Read Latency	P999 read latency Unit: ms	≥ 0 ms	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra165_large_partition_num	Large Keys	Number of large keys on the current node Unit: count	≥ 0 Counts	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra166_write_max_latency	Maximum Write Latency	Maximum write latency Unit: ms	≥ 0 ms	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra167_read_max_latency	Maximum Read Latency	Maximum read latency Unit: ms	≥ 0 ms	Monitored object: database Monitored object: GaussDB(for Cassandra) instance node	1 minute
cassandra168_imbalance_table_num	Tables with Uneven Data Distribution	Number of tables in which data is not evenly distributed. Unit: Count	≥ 0 Counts	Monitored object: database Monitored object: node of the Kunpeng-based GaussDB(for Cassandra) instance	1 minute

Dimensions

Key	Value
cassandra_cluster_id.cassandra_node_id	Cluster ID or node ID of the GaussDB(for Cassandra) instance

Parent topic: Monitoring and Alarm Reporting