MongoDB Unified Dashboard

The MongoDB Unified Dashboard provides predefined list views for monitoring nodes in a MongoDB cluster.
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mongodb_UD
The MongoDB Unified Dashboard provides predefined list views for monitoring nodes in a MongoDB cluster.
: If your Unified Dashboard is not populating with data, verify that all required data sources for the Unified Dashboard are enabled. The required probe must be deployed and must be configured so that required monitors are active. For more information, see the help topic on required data sources for the Unified Dashboard.
Required Data Sources
The following table contains the monitors that you must activate in the mongodb_monitor  probe to see data in the MongoDB Unified Dashboard.
Dashboard Chart
QoS
Description
Cluster Summary
QOS_MONGO_CLUSTER_VERSION
The MongoDB version
Cluster Summary
QOS_MONGODB_SYS_MEM_USED_PERCENT
The percentage of memory used
Cluster Summary
QOS_MONGODB_SYS_IO_USE_PERCENT
The percentage of disk used
Replica Set Status
QOS_MONGO_REPSET_STATUS_HEALTH
The health of the replica set. Possible values are: (1) up or (0) down. This value is not returned for the member that returns the response status.
Replica Set Status
QOS_MONGO_REPSET_STATUS_UPTIME
The number of seconds that this member has been online
Replica Set Status
QOS_MONGO_REPSET_STATUS_STATE
The replica state of the member. Possible values are:
STARTUP = 0, PRIMARY = 1, SECONDARY = 2, RECOVERING = 3, STARTUP2 = 5, UNKNOWN = 6, ARBITER = 7, DOWN = 8, ROLLBACK = 9, REMOVED = 10.
Replica Set Status
QOS_MONGO_REPSET_STATUS_PINGMS
The number of milliseconds (ms) that a round-trip packet takes to travel between the remote member and the local instance. This value is not returned for the member that returns the response status.
Server Status
QOS_MONGO_SRV_STATUS_UPTIME
The number of seconds that the mongos or mongod process has been active.
Server Status
QOS_MONGO_SRV_STATUS_MEM_MAPPED
The amount of mapped memory by the database in megabytes (MB). Because MongoDB uses memory-mapped files, this value is likely to be to be roughly equivalent to the total size of your database or databases.
Server Status
QOS_MONGO_SRV_STATUS_GLOBALLOCK_ACTIVECLIENTS_TOTAL
The total number of active client connections to the database. This count combines clients that are performing read operations (readers) and clients that are performing write operations (writers).
Server Status
QOS_MONGO_SRV_STATUS_METRICS_DOCUMENT_INSERTED
The total number of documents inserted
Server Status
QOS_MONGO_SRV_STATUS_METRICS_DOCUMENT_DELETED
The total number of documents deleted
Server Status
QOS_MONGO_SRV_STATUS_METRICS_DOCUMENT_UPDATED
The total number of documents updated
Cluster Summary
The following table describes the Cluster Summary chart in the MongoDB Unified Dashboard.
Column
Description
Host
The name or IP address of the host
Cluster Version
The version of the MongoDB cluster
Memory Usage
The percentage of memory used
Storage Usage
The percentage of disk used
Replica Set Status
The following table describes the Replica Set Status chart in the MongoDB Unified Dashboard.
Column
Description
Host
The name or IP address of the host
Target
The logical or physical component under monitor
Replica Set Health
The health of the replica set. Possible values are: (1) up or (0) down. This value is not returned for the member that returns the response status.
Replica Set Uptime
The number of seconds that this member has been online
State
The replica state of the member. Possible values are:
STARTUP = 0, PRIMARY = 1, SECONDARY = 2, RECOVERING = 3, STARTUP2 = 5, UNKNOWN = 6, ARBITER = 7, DOWN = 8, ROLLBACK = 9, REMOVED = 10.
Response Time
The number of milliseconds (ms) that a round-trip packet takes to travel between the remote member and the local instance. This value is not returned for the member that returns the response status.
Server Status
The following table describes the Server Status chart in the MongoDB Unified Dashboard.
Column
Description
Host
The name or IP address of the host
Target
The logical or physical component under monitor
Server Uptime
The number of seconds that the mongos or mongod process has been active
Memory Mapped
The amount of mapped memory by the database in megabytes (MB). Because MongoDB uses memory-mapped files, this value is likely to be to be roughly equivalent to the total size of your database or databases.
Active Connection
The total number of active client connections to the database. This count combines clients that are performing read operations (readers) and clients that are performing write operations (writers).
Inserted Documents
The total number of documents inserted
Deleted Documents
The total number of documents deleted
Update Documents
The total number of documents updated
Shard Statistics
The following table describes the Shard Statistics chart in the MongoDB Unified Dashboard.
Column
Description
Host
The name or IP address of the host
Target
The logical or physical component under monitor
Document Count
The percentage of the documents or objects of this collection found in this shard
Chunk Count
The number of chunks of this collection found in this shard
Average Object Size
The average size of an object in this shard of the collection. The scale argument affects this value.