DDS Metrics

Function

This section describes metrics reported by Document Database Service (DDS) 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 DDS.

Namespace

SYS.DDS

Monitoring Metrics

Metrics	Metrics Name	Description	Value Range	Remarks
mongo001_command_ps	COMMAND Statements per Second	Number of COMMAND statements executed per second	≥ 0 Count/s	Monitored object: database Monitored object type: Cluster instance mongos node Primary node Secondary node
mongo002_delete_ps	DELETE Statements per Second	Number of DELETE statements executed per second	≥ 0 Count/s	Monitored object: database Monitored object type: Cluster instance mongos node Primary node Secondary node
mongo003_insert_ps	INSERT Statements per Second	Number of INSERT statements executed per second	≥ 0 Count/s	Monitored object: database Monitored object type: Cluster instance mongos node Primary node Secondary node
mongo004_query_ps	QUERY Statements per Second	Number of QUERY statements executed per second	≥ 0 Count/s	Monitored object: database Monitored object type: Cluster instance mongos node Primary node Secondary node
mongo005_update_ps	UPDATE Statements per Second	Number of UPDATE statements executed per second	≥ 0 Count/s	Monitored object: database Monitored object type: Cluster instance mongos node Primary node Secondary node
mongo006_getmore_ps	GETMORE Statements per Second	Number of GETMORE statements executed per second	≥ 0 Count/s	Monitored object: database Monitored object type: Cluster instance mongos node Primary node Secondary node
mongo007_chunk_num1	Chunks of Shard 1	Number of chunks in shard 1	0–64 Counts	Monitored object: database Monitored object type: cluster instance
mongo007_chunk_num2	Chunks of Shard 2	Number of chunks in shard 2	0–64 Counts	Monitored object: database Monitored object type: cluster instance
mongo007_chunk_num3	Chunks of Shard 3	Number of chunks in shard 3	0–64 Counts	Monitored object: database Monitored object type: cluster instance
mongo007_chunk_num4	Chunks of Shard 4	Number of chunks in shard 4	0–64 Counts	Monitored object: database Monitored object type: cluster instance
mongo007_chunk_num5	Chunks of Shard 5	Number of chunks in shard 5	0–64 Counts	Monitored object: database Monitored object type: cluster instance
mongo007_chunk_num6	Chunks of Shard 6	Number of chunks in shard 6	0–64 Counts	Monitored object: database Monitored object type: cluster instance
mongo007_chunk_num7	Chunks of Shard 7	Number of chunks in shard 7	0–64 Counts	Monitored object: database Monitored object type: cluster instance
mongo007_chunk_num8	Chunks of Shard 8	Number of chunks in shard 8	0–64 Counts	Monitored object: database Monitored object type: cluster instance
mongo007_chunk_num9	Chunks of Shard 9	Number of chunks in shard 9	0–64 Counts	Monitored object: database Monitored object type: cluster instance
mongo007_chunk_num10	Chunks of Shard 10	Number of chunks in shard 10	0–64 Counts	Monitored object: database Monitored object type: cluster instance
mongo007_chunk_num11	Chunks of Shard 11	Number of chunks in shard 11	0–64 Counts	Monitored object: database Monitored object type: cluster instance
mongo007_chunk_num12	Chunks of Shard 12	Number of chunks in shard 12	0–64 Counts	Monitored object: database Monitored object type: cluster instance
mongo008_connections	Active Instance Connections	Total number of connections attempting to connect to a DDS DB instance	≥ 0 Counts	Monitored object: database Monitored object type: cluster instance
mongo009_migFail_num	Chunk Migration Failures in Last 24 hrs	Number of chunk migration failures in the last 24 hours	≥ 0 Counts	Monitored object: database Monitored object type: cluster instance
mongo007_connections	Active Node Connections	Total number of connections attempting to connect to a DDS DB instance node	0–200 Counts	Monitored object: database Monitored object type: mongos node Primary node Secondary node
mongo008_mem_resident	Resident Memory	Size of resident memory in MB	≥ 0 MB	Monitored object: database Monitored object type: mongos node Primary node Secondary node
mongo009_mem_virtual	Virtual Memory	Size of virtual memory in MB	≥ 0 MB	Monitored object: database Monitored object type: mongos node Primary node Secondary node
mongo010_regular_asserts_ps	Regular Asserts per Second	Number of regular asserts per second	≥ 0 Count/s	Monitored object: database Monitored object type: mongos node Primary node Secondary node
mongo011_warning_asserts_ps	Warning Asserts per Second	Number of warning asserts per second	≥ 0 Count/s	Monitored object: database Monitored object type: mongos node Primary node Secondary node
mongo012_msg_asserts_ps	Message Asserts per Second	Number of message asserts per second	≥ 0 Count/s	Monitored object: database Monitored object type: mongos node Primary node Secondary node
mongo013_user_asserts_ps	User Asserts per Second	Number of user asserts per second	≥ 0 Count/s	Monitored object: database Monitored object type: mongos node Primary node Secondary node
mongo014_queues_total	Operations Queued Waiting for a Lock	Number of operations queued waiting for a lock	≥ 0 Counts	Monitored object: database Monitored object type: Primary node Secondary node
mongo015_queues_readers	Operations Queued Waiting for a Read Lock	Number of operations queued waiting for a read lock	≥ 0 Counts	Monitored object: database Monitored object type: Primary node Secondary node
mongo016_queues_writers	Operations Queued Waiting for a Write Lock	Number of operations queued waiting for a write lock	≥ 0 Counts	Monitored object: database Monitored object type: Primary node Secondary node
mongo017_page_faults	Page Faults	Number of page faults on the monitored nodes	≥ 0 Counts	Monitored object: database Monitored object type: Primary node Secondary node
mongo018_porfling_num	Slow Queries	Number of slow queries on the monitored nodes	≥ 0 Counts	Monitored object: database Monitored object type: Primary node Secondary node
mongo019_cursors_open	Current Maintained Cursors	Number of maintained cursors on the monitored nodes	≥ 0 Counts	Monitored object: database Monitored object type: Primary node Secondary node
mongo020_cursors_timeOut	Timeout Cursors	Number of timed out cursors on the monitored nodes	≥ 0 Counts	Monitored object: database Monitored object type: Primary node Secondary node
mongo021_wt_cahe_usage	Bytes in WiredTiger Cache	Size of data in the WiredTiger cache in MB	≥ 0 MB	Monitored object: database Monitored object type: Primary node Secondary node
mongo022_wt_cahe_dirty	Tracked Dirty Bytes in WiredTiger Cache	Size of tracked dirty data in the WiredTiger cache in MB	≥ 0 MB	Monitored object: database Monitored object type: Primary node Secondary node
mongo023_wInto_wtCache	Bytes Written Into Cache per Second	Bytes written into WiredTiger cache per second	≥ 0 bytes/s	Monitored object: database Monitored object type: Primary node Secondary node
mongo024_wFrom_wtCache	Bytes Written From Cache per Second	Bytes written from the WiredTiger cache to the disk per second	≥ 0 bytes/s	Monitored object: database Monitored object type: Primary node Secondary node
mongo025_repl_oplog_win	Oplog Window	Available time in hour in the monitored primary node's oplog	≥ 0 Hours	Monitored object: database Monitored object type: primary node
mongo026_oplog_size_ph	Oplog Growth Rate	Speed in MB/hour at which oplogs are generated on the monitored primary node	≥ 0 MB/Hour	Monitored object: database Monitored object type: primary node
mongo025_repl_headroom	Replication Headroom	Time difference in seconds between the primary's oplog window and the replication lag of the secondary	≥ 0 Seconds	Monitored object: database Monitored object type: secondary node
mongo026_repl_lag	Replication Lag	A delay in seconds between an operation on the primary and the application of that operation from the oplog to the secondary	≥ 0 Seconds	Monitored object: database Monitored object type: secondary node
mongo027_repl_command_ps	Replicated COMMAND Statements per Second	Number of replicated COMMAND statements executed on the secondary node per second	≥ 0 Count/s	Monitored object: database Monitored object type: secondary node
mongo028_repl_update_ps	Replicated UPDATE Statements per Second	Number of replicated UPDATE statements executed on the secondary node per second	≥ 0 Count/s	Monitored object: database Monitored object type: secondary node
mongo029_repl_delete_ps	Replicated DELETE Statements per Second	Number of replicated DELETE statements executed on the secondary node per second	≥ 0 Count/s	Monitored object: database Monitored object type: secondary node
mongo030_repl_insert_ps	Replicated INSERT Statements per Second	Number of replicated INSERT statements executed on the secondary node per second	≥ 0 Count/s	Monitored object: database Monitored object type: secondary node
mongo031_cpu_usage	CPU Usage	CPU usage of the monitored object	0–1	Monitored object: ECS Monitored object type: mongos node Primary node Secondary node
mongo032_mem_usage	Memory Usage	Memory usage of the monitored object	0–1	Monitored object: ECS Monitored object type: mongos node Primary node Secondary node
mongo033_bytes_out	Network Output Throughput	Outgoing traffic in bytes per second	≥ 0 bytes/s	Monitored object: ECS Monitored object type: mongos node Primary node Secondary node
mongo034_bytes_in	Network Input Throughput	Incoming traffic in bytes per second	≥ 0 bytes/s	Monitored object: ECS Monitored object type: mongos node Primary node Secondary node
mongo035_disk_usage	Disk Utilization	Disk usage of the monitored object	0–1	Monitored object: ECS Monitored object type: Primary node Secondary node
mongo036_iops	IOPS	Average number of I/O requests processed by the system in a specified period	≥ 0 Count/s	Monitored object: ECS Monitored object type: Primary node Secondary node
mongo037_read_throughput	Disk Read Throughput	Number of bytes read from the disk per second	≥ 0 bytes/s	Monitored object: ECS Monitored object type: Primary node Secondary node
mongo038_write_throughput	Disk Write Throughput	Number of bytes written into the disk per second	≥ 0 bytes/s	Monitored object: ECS Monitored object type: Primary node Secondary node
mongo039_avg_disk_sec_per_read	Disk Read Time	Average time required for each disk read in a specified period	≥ 0 Seconds	Monitored object: ECS Monitored object type: Primary node Secondary node
mongo040_avg_disk_sec_per_write	Disk Write Time	Average time required for each disk write in a specified period	≥ 0 Seconds	Monitored object: ECS Monitored object type: Primary node Secondary node
mongo042_disk_total_size	Total Storage Space	Total storage space of the monitored object	0–1000 GB	Monitored object: ECS Monitored object type: Primary node Secondary node
mongo043_disk_used_size	Used Storage Space	Used storage space of the monitored object	0–1000 GB	Monitored object: ECS Monitored object type: Primary node Secondary node
mongo044_swap_usage	SWAP Usage	Swap usage, in percentage	0~100%	Monitored object: database Monitored object type: Primary node Secondary node
mongo050_top_total_time	Total Time Spent on Collections	Mongotop-total time: total time spent on collection operations, in milliseconds.	0.001~600000.00 ms	Monitored object: database Monitored object type: Primary node Secondary node
mongo051_top_read_time	Total Time Spent Reading Collections	Mongotop-read time: total time spent reading collections, in milliseconds.	0.001~600000.00 ms	Monitored object: database Monitored object type: Primary node Secondary node
mongo052_top_write_time	Total Time Spent Writing Collections	Mongotop-write time: total time spent writing collections, in milliseconds.	0.001~600000.00 ms	Monitored object: database Monitored object type: Primary node Secondary node
mongo053_wt_flushes_status	Number of Times that Checkpoints Are Triggered	Number of times that WiredTiger checkpoints are triggered during a polling interval	0~10000000 Times	Monitored object: database Monitored object type: Primary node Secondary node
mongo054_wt_cache_used_percent	Percentage of the Cache Used by WiredTiger	Cache size used by WiredTiger, in percentage	0~100%	Monitored object: database Monitored object type: Primary node Secondary node
mongo055_wt_cache_dirty_percent	Percentage of Dirty Data in the WiredTiger Cache	Dirty size in the WiredTiger cache, in percentage	0~100%	Monitored object: database Monitored object type: Primary node Secondary node

Dimensions

Key	Value
mongodb_instance_id	DDS DB instance ID Cluster instance
mongodb_node_id	Secondary node ID Includes the mongos, config, and shard nodes of cluster instances and the nodes of replica set instances.

Key

Value

mongodb_instance_id

DDS DB instance ID

Cluster instance

mongodb_node_id

Secondary node ID

Includes the mongos, config, and shard nodes of cluster instances and the nodes of replica set instances.

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