MongoDB Member Statistics
Attributes
The following attributes are available in this monitor type.
Attribute name | Unit | Description | Default Key Performance Indicator (KPI) | Scheduling (Poll time) |
|---|---|---|---|---|
Lag in replicating | Seconds | This attribute displays the length of time between the last operation in the primary member operations log and the last operation applied to a particular secondary member, in the Replica Set. The unit of the Lag in replicating (LagInReplicating) attribute is seconds. This attribute is enabled by default. | No | NA |
Log file size MB | MB | This attribute displays the size of the file that logs the operations. The unit of the Log file size MB (LogFileSizeMB) attribute is megabytes (MB). This attribute is enabled by default. | No | NA |
Log file used MB | MB | This attribute displays the used size of the Replica Set of oplog file, which logs operations. The unit of the Log file used MB (LogFileUsedMB) attribute is megabytes (MB). This attribute is enabled by default. | No | NA |
Mapped memory size | MB | This attribute displays the mapped memory size. The unit of the Mapped memory size is MB. | No | NA |
Number of active clients | # | This attribute shows the number of connected clients. The unit of the Number of active clients (NumActiveClients) attribute is a number. | No | NA |
Number of asserts regular | # | This attribute displays the number of assertions. The unit of the Number of asserts regular (NumAssertsRegular)attribute is a number. | No | NA |
Number of asserts messages | # | This attribute shows the number of message assertions raised since the server process was started. The unit of the Number of asserts messages (NumAssertsMsg) attribute is a number. | No | NA |
Number of asserts users | # | This attribute displays the number of user asserts that have occurred since the process server was last started. The unit of the Number of asserts users (NumAssertsUser) attribute is a number. This attribute is enabled by default. | No | NA |
Number of asserts warning | # | This attribute monitors the number of warnings raised since the server process was started. The unit of the Number of asserts warning (NumAssertsWarning) attribute is a number. | No | NA |
Number of commands | # | This attribute displays the total number of commands issues to the database since the MogoDB instance was last started. The unit of the Number of commands (NumCommand) attribute is a number. This attribute is enabled by default. | No | NA |
Number of deletes | # | This attribute displays the total number of delete operations since the MongoDB instance was last started. The unit of the Number of deletes (NumDelete) attribute is a number. | No | NA |
Number of get more | # | This attribute shows the total number of getmore operations since the MongoDB instance was last started. The unit of the Number of get more (NumGetMore) attribute is a number. | No | NA |
Number of inserts | # | This attribute provides the total number of insert operations since the MongoDB instance was last started. The unit of the Number of inserts (NumInsert) attribute is a number. | No | NA |
Number of network requests | # | This attribute displays the total number of requests that the server has received. The unit of the Number of network requests (NetworkNumRequests) attribute is a number. This attribute is enabled by default. | No | NA |
Number of page faults | # | This attribute displays the number of events that occur when a process requests data from memory that the operating system has moved to disk. The unit of the Number of page faults (PageFaults) attribute is a number. This attribute is enabled by default. | No | NA |
Number of queries | # | This attribute displays the total number of queries since the MongoDB instance was last started. The unit of the Number of queries (NumQuery) attribute is a number. This attribute is enabled by default. | No | NA |
Number of queue readers | # | This attribute shows the number of reader operations that are currently queued and waiting for the read lock. The unit of the Number of queue readers (QueueReaders) attribute is a number. | No | NA |
Number of queue writers | # | This attribute shows the number of writer operations that are currently queued and waiting for the write lock. The unit of the Number of queue writers (QueueWriters) attribute is a number. | No | NA |
Number of updates | # | This attribute displays the total number of replicated update operations since the MongoDB instance was last started. The unit of the Number of updates (NumUpdate) attribute is a number. | No | NA |
Number of network bytes in | # | This attribute displays the amount of network traffic, in bytes, received by a MongoDB database instance. The unit of the Number of network bytes in (NumNetworkBytesIn) attribute is bytes. This attribute is enabled by default. | No | NA |
Number of network bytes out | # | This attribute shows the amount of network traffic, in bytes, sent from a MongoDB database instance. The unit of the Number of network bytes out (NumNetworkBytesOut) attribute is bytes. This attribute is enabled by default. | No | NA |
Number of open connections | # | This attribute displays the total number of open connections. The unit of the Number of open connections (NumOpenConnections)attribute is a number. This attribute is enabled by default. | No | NA |
Number of queue read write | # | This attribute displays the number of clients in the read and write queue. The unit of the Number of queue read write (QueueReadWrite) attribute is a number. | No | NA |
Op log length | Hours | This attribute displays a record of all operations log that modify the data stored in your database. The unit of the Op log length (OpLogLength)attribute is hours. This attribute is enabled by default. | No | NA |
Resident memory size | MB | This attribute shows the value of the resident memory currently used by the database process. The unit of the Resident memory size (ResidentMemSz) attribute is megabytes (MB). This attribute is enabled by default. | No | NA |
Virtual memory size | MB | This attribute displays the quantity of virtual memory used by the MongoDB primary daemon process. The unit of the Virtual memory size (VirtualMemSz) is megabytes (MB). This attribute is enabled by default. | No | NA |
Long running operations | # | This attribute provides the operations that are running more than a specified time. The output from the collection currentOp is the base for discovery and collection of data discovers all the operations that are running more than the given time in sec, default time is 60 sec. The operations can be filtered according to a specified time, NameSpace, and operation. This attribute is enabled by default. The unit of LongRunningOP is a number. | Yes | NA |
Database total size on disk | GB | This attribute provides the total size of the database on disk. The total size includes the sum of all the SizeOnDisk fields. The unit of the Database total size on disk (DBsTotalSizeDisk) is gigabytes (GB). This attribute is enabled by default. | Yes | NA |

