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  5. DDS Metrics

DDS Metrics

Function

This section describes metrics reported by the 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

Metrics

Metric

Name

Description

Value Range

Remarks

mongo001_command_ps

Command Operations per Second

Average number of the command statement execution times on MongoDB instances per second

≥ 0 executions/s

Monitored object: database

Monitored instance type:

  • MongoDB instance
  • Mongos node
  • Primary node
  • Secondary node

mongo002_delete_ps

Delete Operations per Second

Average number of the delete statement execution times on MongoDB instances per second

≥ 0 executions/s

Monitored object: database

Monitored instance type:

  • MongoDB instance
  • Mongos node
  • Primary node
  • Secondary node

mongo003_insert_ps

Insert Operations per Second

Average number of the insert statement execution times on MongoDB instances per second

≥ 0 executions/s

Monitored object: database

Monitored instance type:

  • MongoDB instance
  • Mongos node
  • Primary node
  • Secondary node

mongo004_query_ps

Query Operations per Second

Average number of the query statement execution times on MongoDB instances per second

≥ 0 executions/s

Monitored object: database

Monitored instance type:

  • MongoDB instance
  • Mongos node
  • Primary node
  • Secondary node

mongo005_update_ps

Update Operations per Second

Average number of the update statement execution times on MongoDB instances per second

≥ 0 executions/s

Monitored object: database

Monitored instance type:

  • MongoDB instance
  • Mongos node
  • Primary node
  • Secondary node

mongo006_getmore_ps

Getmore Operations per Second

Average number of the getmore statement execution times on MongoDB instances per second

≥ 0 executions/s

Monitored object: database

Monitored instance type:

  • MongoDB instance
  • Mongos node
  • Primary node
  • Secondary node

mongo007_chunk_num1

Number of Chunks of Shard 1

Number of chunks in shard 1

0-64 counts

Monitored object: database

Monitored instance type: MongoDB instance

mongo007_chunk_num2

Number of Chunks of Shard 2

Number of chunks in shard 2

0-64 counts

Monitored object: database

Monitored instance type: MongoDB instance

mongo007_chunk_num3

Number of Chunks of Shard 3

Number of chunks in shard 3

0-64 counts

Monitored object: database

Monitored instance type: MongoDB instance

mongo007_chunk_num4

Number of Chunks of Shard 4

Number of chunks in shard 4

0-64 counts

Monitored object: database

Monitored instance type: MongoDB instance

mongo007_chunk_num5

Number of Chunks of Shard 5

Number of chunks in shard 5

0-64 counts

Monitored object: database

Monitored instance type: MongoDB instance

mongo007_chunk_num6

Number of Chunks of Shard 6

Number of chunks in shard 6

0-64 counts

Monitored object: database

Monitored instance type: MongoDB instance

mongo007_chunk_num7

Number of Chunks of Shard 7

Number of chunks in shard 7

0-64 counts

Monitored object: database

Monitored instance type: MongoDB instance

mongo007_chunk_num8

Number of Chunks of Shard 8

Number of chunks in shard 8

0-64 counts

Monitored object: database

Monitored instance type: MongoDB instance

mongo007_chunk_num9

Number of Chunks of Shard 9

Number of chunks in shard 9

0-64 counts

Monitored object: database

Monitored instance type: MongoDB instance

mongo007_chunk_num10

Number of Chunks of Shard 10

Number of chunks in shard 10

0-64 counts

Monitored object: database

Monitored instance type: MongoDB instance

mongo007_chunk_num11

Number of Chunks of Shard 11

Number of chunks in shard 11

0-64 counts

Monitored object: database

Monitored instance type: MongoDB instance

mongo007_chunk_num12

Number of Chunks of Shard 12

Number of chunks in shard 12

0-64 counts

Monitored object: database

Monitored instance type: MongoDB instance

mongo008_connections

Current DB Instance Active Connections

Total number of connections attempting to connect to MongoDB instances

0-200 counts

Monitored object: database

Monitored instance type: MongoDB 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 instance type: MongoDB instance

mongo007_connections

Current Active Connections

Total number of connections attempting to connect to MongoDB instances

0-200 counts

Monitored object: database

Monitored instance type:

  • Mongos node
  • Primary node
  • Secondary node

mongo008_mem_resident

Resident Memory

Size of resident memory in MB

≥ 0 MB

Monitored object: database

Monitored instance type:

  • Mongos node
  • Primary node
  • Secondary node

mongo009_mem_virtual

Virtual Memory

Size of virtual memory in MB

≥ 0 MB

Monitored object: database

Monitored instance type:

  • Mongos node
  • Primary node
  • Secondary node

mongo010_regular_asserts_ps

Regular Asserts per Second

Number of regular asserts per second

≥ 0 asserts/s

Monitored object: database

Monitored instance type:

  • Mongos node
  • Primary node
  • Secondary node

mongo011_warning_asserts_ps

Warning Asserts per Second

Number of warning asserts per second

≥ 0 asserts/s

Monitored object: database

Monitored instance type:

  • Mongos node
  • Primary node
  • Secondary node

mongo012_msg_asserts_ps

Message Asserts per Second

Number of message asserts per second

≥ 0 asserts/s

Monitored object: database

Monitored instance type:

  • Mongos node
  • Primary node
  • Secondary node

mongo013_user_asserts_ps

User Asserts per Second

Number of user asserts per second

≥ 0 asserts/s

Monitored object: database

Monitored instance type:

  • Mongos node
  • Primary node
  • Secondary node

mongo031_cpu_usage

CPU Usage

CPU usage of the monitored object

0-1

Monitored object: ECS

Monitored instance type:

  • Mongos node
  • Primary node
  • Secondary node

mongo032_mem_usage

Memory Usage

Memory usage of the monitored object

0-1

Monitored object: ECS

Monitored instance 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 instance 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 instance type:

  • Mongos node
  • Primary node
  • Secondary node

mongo014_queues_total

Number of Operations Queued Waiting for the Lock

Number of operations queued waiting for the lock

≥ 0 counts

Monitored object: database

Monitored instance type:

  • Primary node
  • Secondary node

mongo015_queues_readers

Number of Operations Queued Waiting for the Read Lock

Number of operations queued waiting for the read lock

≥ 0 counts

Monitored object: database

Monitored instance type:

  • Primary node
  • Secondary node

mongo016_queues_writers

Number of Operations Queued Waiting for the Write Lock

Number of operations queued waiting for the write lock

≥ 0 counts

Monitored object: database

Monitored instance type:

  • Primary node
  • Secondary node

mongo017_page_faults

Number of Page Faults

Number of page faults on the monitored nodes

≥ 0 counts

Monitored object: database

Monitored instance type:

  • Primary node
  • Secondary node

mongo018_porfling_num

Number of Slow Queries

Number of slow queries on the monitored nodes

≥ 0 counts

Monitored object: database

Monitored instance type:

  • Primary node
  • Secondary node

mongo019_cursors_open

Number of Current Maintained Cursors

Number of maintained cursors on the monitored nodes

≥ 0 counts

Monitored object: database

Monitored instance type:

  • Primary node
  • Secondary node

mongo020_cursors_timeOut

Number of Timed Out Cursors

Number of timed out cursors on the monitored nodes

≥ 0 counts

Monitored object: database

Monitored instance type:

  • Primary node
  • Secondary node

mongo021_wt_cahe_usage

Bytes in Cache When Using WiredTiger

Size of data in cache in MB when WiredTiger is used

≥ 0 MB

Monitored object: database

Monitored instance type:

  • Primary node
  • Secondary node

mongo022_wt_cahe_dirty

Tracked Dirty Bytes in Cache When Using WiredTiger

Size of dirty data in cache in MB when WiredTiger is used

≥ 0 MB

Monitored object: database

Monitored instance type:

  • Primary node
  • Secondary node

mongo023_wInto_wtCache

Bytes Written into WiredTiger Cache per Second

Bytes written into WiredTiger cache per second

≥ 0 bytes/s

Monitored object: database

Monitored instance type:

  • Primary node
  • Secondary node

mongo024_wFrom_wtCache

Bytes Written into Disks from WiredTiger Cache per Second

Bytes written into disks from WiredTiger cache per second

≥ 0 bytes/s

Monitored object: database

Monitored instance type:

  • Primary node
  • Secondary node

mongo025_repl_oplog_win

Oplog Available Time on Primary Node

Oplog available time in hours on the monitored primary node

≥ 0 Hours

Monitored object: database

Monitored instance type: primary node

mongo026_oplog_size_ph

Oplog Generation Speed on Primary Node

Speed in MB/hour at which Oplog is generated on the monitored primary node

≥ 0 MB/Hour

Monitored object: database

Monitored instance type: primary node

mongo035_disk_usage

Disk Utilization

Disk usage of the monitored object

0-1

Monitored object: ECS

Monitored instance type:

  • Primary node
  • Secondary node

mongo036_iops

IOPS

Average number of I/O requests processed by the system per second

≥ 0 counts/s

Monitored object: ECS

Monitored instance type:

  • Primary node
  • Secondary node

mongo037_read_throughput

Disk Read Throughput

Average number of read bytes per second for disks

≥ 0 bytes/s

Monitored object: ECS

Monitored instance type:

  • Primary node
  • Secondary node

mongo038_write_throughput

Disk Read Throughput

Average number of write bytes per second for disks

≥ 0 bytes/s

Monitored object: ECS

Monitored instance type:

  • Primary node
  • Secondary node

mongo039_avg_disk_sec_per_read

Average Time per Disk Read

Average time per disk read operation during a specified period

≥ 0 Seconds

Monitored object: ECS

Monitored instance type:

  • Primary node
  • Secondary node

mongo040_avg_disk_sec_per_write

Average Time per Disk Write

Average time per disk write operation during a specified period

≥ 0 Seconds

Monitored object: ECS

Monitored instance type:

  • Primary node
  • Secondary node

mongo041_avg_disk_queue_length

Average Disk Queue Length

Number of processes waiting to be written to the monitored object

≥ 0 counts

Monitored object: ECS

Monitored instance type:

  • Primary node
  • Secondary node

mongo042_disk_total_size

Total Disk Size

Total disk size of the monitored object in GB

0–1000 GB

Monitored object: ECS

Monitored instance type:

  • Primary node
  • Secondary node

mongo043_disk_used_size

Disk Usage

Total size of the disk usage of the monitored object in GB

0–1000 GB

Monitored object: ECS

Monitored instance type:

  • Primary node
  • Secondary node

mongo025_repl_headroom

Oplog Overlapping Time Between Primary and Secondary Nodes

Oplog overlapping time in seconds between the primary and secondary nodes

≥ 0 Seconds

Monitored object: database

Monitored instance type: secondary node

mongo026_repl_lag

Delay Between Primary and Secondary Nodes

Replication delay between the primary and secondary nodes in seconds

≥ 0 Seconds

Monitored object: database

Monitored instance type: secondary node

mongo027_repl_command_ps

Command Operations per Second for Secondary Node Replication

Average number of the command statement execution times for secondary node replication per second

≥ 0

commands/s

Monitored object: database

Monitored instance type: secondary node

mongo028_repl_update_ps

Update Operations per Second for Secondary Node Replication

Average number of the update statement execution times for secondary node replication per second

≥ 0

executions/s

Monitored object: database

Monitored instance type: secondary node

mongo029_repl_delete_ps

Delete Operations per Second for Secondary Node Replication

Average number of the delete statement execution times for secondary node replication per second

≥ 0

executions/s

Monitored object: database

Monitored instance type: secondary node

mongo030_repl_insert_ps

Insert Operations per Second for Secondary Node Replication

Average number of the insert statement execution times for secondary node replication per second

≥ 0

executions/s

Monitored object: database

Monitored instance type: secondary node

Dimension

Key

Value

mongodb_cluster_id

Cluster ID of the MongoDB database

mongos_instance_id

Mongos node ID

mongod_primary_instance_id

Primary node ID

mongod_secondary_instance_id

Secondary node ID