IMPORTANT: No additional bug fixes or documentation updates will be released for this version. For the latest information, see the current release documentation.

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MongoDB fields

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MongoDB fields

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Metrics collected from MongoDB servers.

mongodb

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MongoDB metrics.

collstats

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MongoDB collection statistics metrics.

mongodb.collstats.db

Database name.

type: keyword

mongodb.collstats.collection

Collection name.

type: keyword

mongodb.collstats.name

Combination of database and collection name.

type: keyword

mongodb.collstats.total.time.us

Total waiting time for locks in microseconds.

type: long

mongodb.collstats.total.count

Total number of lock wait events.

type: long

mongodb.collstats.lock.read.time.us

Time waiting for read locks in microseconds.

type: long

mongodb.collstats.lock.read.count

Number of read lock wait events.

type: long

mongodb.collstats.lock.write.time.us

Time waiting for write locks in microseconds.

type: long

mongodb.collstats.lock.write.count

Number of write lock wait events.

type: long

mongodb.collstats.queries.time.us

Time running queries in microseconds.

type: long

mongodb.collstats.queries.count

Number of queries executed.

type: long

mongodb.collstats.getmore.time.us

Time asking for more cursor rows in microseconds.

type: long

mongodb.collstats.getmore.count

Number of times a cursor asked for more data.

type: long

mongodb.collstats.insert.time.us

Time inserting new documents in microseconds.

type: long

mongodb.collstats.insert.count

Number of document insert events.

type: long

mongodb.collstats.update.time.us

Time updating documents in microseconds.

type: long

mongodb.collstats.update.count

Number of document update events.

type: long

mongodb.collstats.remove.time.us

Time deleting documents in microseconds.

type: long

mongodb.collstats.remove.count

Number of document delete events.

type: long

mongodb.collstats.commands.time.us

Time executing database commands in microseconds.

type: long

mongodb.collstats.commands.count

Number of database commands executed.

type: long

dbstats

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dbstats provides an overview of a particular mongo database. This document is most concerned with data volumes of a database.

mongodb.dbstats.avg_obj_size.bytes

type: long

format: bytes

mongodb.dbstats.collections

type: integer

mongodb.dbstats.data_size.bytes

type: long

format: bytes

mongodb.dbstats.db

type: keyword

mongodb.dbstats.file_size.bytes

type: long

format: bytes

mongodb.dbstats.index_size.bytes

type: long

format: bytes

mongodb.dbstats.indexes

type: long

mongodb.dbstats.num_extents

type: long

mongodb.dbstats.objects

type: long

mongodb.dbstats.storage_size.bytes

type: long

format: bytes

mongodb.dbstats.ns_size_mb.mb

type: long

mongodb.dbstats.data_file_version.major

type: long

mongodb.dbstats.data_file_version.minor

type: long

mongodb.dbstats.extent_free_list.num

type: long

mongodb.dbstats.extent_free_list.size.bytes

type: long

format: bytes

metrics

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Statistics that reflect the current use and state of a running mongod instance for more information, take a look at https://docs.mongodb.com/manual/reference/command/serverStatus/#serverstatus.metrics

commands

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Reports on the use of database commands. The fields in metrics.commands are the names of database commands and each value is a document that reports the total number of commands executed as well as the number of failed executions. metrics.commands.<command>.failed shows the number of times <command> failed on this mongod. metrics.commands.<command>.total shows the number of times <command> executed on this mongod.

mongodb.metrics.commands.is_self.failed: type: long
mongodb.metrics.commands.is_self.total: type: long
mongodb.metrics.commands.aggregate.failed: type: long
mongodb.metrics.commands.aggregate.total: type: long
mongodb.metrics.commands.build_info.failed: type: long
mongodb.metrics.commands.build_info.total: type: long
mongodb.metrics.commands.coll_stats.failed: type: long
mongodb.metrics.commands.coll_stats.total: type: long
mongodb.metrics.commands.connection_pool_stats.failed: type: long
mongodb.metrics.commands.connection_pool_stats.total: type: long
mongodb.metrics.commands.count.failed: type: long
mongodb.metrics.commands.count.total: type: long
mongodb.metrics.commands.db_stats.failed: type: long
mongodb.metrics.commands.db_stats.total: type: long
mongodb.metrics.commands.distinct.failed: type: long
mongodb.metrics.commands.distinct.total: type: long
mongodb.metrics.commands.find.failed: type: long
mongodb.metrics.commands.find.total: type: long
mongodb.metrics.commands.get_cmd_line_opts.failed: type: long
mongodb.metrics.commands.get_cmd_line_opts.total: type: long
mongodb.metrics.commands.get_last_error.failed: type: long
mongodb.metrics.commands.get_last_error.total: type: long
mongodb.metrics.commands.get_log.failed: type: long
mongodb.metrics.commands.get_log.total: type: long
mongodb.metrics.commands.get_more.failed: type: long
mongodb.metrics.commands.get_more.total: type: long
mongodb.metrics.commands.get_parameter.failed: type: long
mongodb.metrics.commands.get_parameter.total: type: long
mongodb.metrics.commands.host_info.failed: type: long
mongodb.metrics.commands.host_info.total: type: long
mongodb.metrics.commands.insert.failed: type: long
mongodb.metrics.commands.insert.total: type: long
mongodb.metrics.commands.is_master.failed: type: long
mongodb.metrics.commands.is_master.total: type: long
mongodb.metrics.commands.last_collections.failed: type: long
mongodb.metrics.commands.last_collections.total: type: long
mongodb.metrics.commands.last_commands.failed: type: long
mongodb.metrics.commands.last_commands.total: type: long
mongodb.metrics.commands.list_databased.failed: type: long
mongodb.metrics.commands.list_databased.total: type: long
mongodb.metrics.commands.list_indexes.failed: type: long
mongodb.metrics.commands.list_indexes.total: type: long
mongodb.metrics.commands.ping.failed: type: long
mongodb.metrics.commands.ping.total: type: long
mongodb.metrics.commands.profile.failed: type: long
mongodb.metrics.commands.profile.total: type: long
mongodb.metrics.commands.replset_get_rbid.failed: type: long
mongodb.metrics.commands.replset_get_rbid.total: type: long
mongodb.metrics.commands.replset_get_status.failed: type: long
mongodb.metrics.commands.replset_get_status.total: type: long
mongodb.metrics.commands.replset_heartbeat.failed: type: long
mongodb.metrics.commands.replset_heartbeat.total: type: long
mongodb.metrics.commands.replset_update_position.failed: type: long
mongodb.metrics.commands.replset_update_position.total: type: long
mongodb.metrics.commands.server_status.failed: type: long
mongodb.metrics.commands.server_status.total: type: long
mongodb.metrics.commands.update.failed: type: long
mongodb.metrics.commands.update.total: type: long
mongodb.metrics.commands.whatsmyuri.failed: type: long
mongodb.metrics.commands.whatsmyuri.total: type: long

cursor

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Contains data regarding cursor state and use.

mongodb.metrics.cursor.timed_out

The total number of cursors that have timed out since the server process started.

type: long

open

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Contains data regarding open cursors.

mongodb.metrics.cursor.open.no_timeout

The number of open cursors with the option DBQuery.Option.noTimeout set to prevent timeout.

type: long

mongodb.metrics.cursor.open.pinned

The number of pinned open cursors.

type: long

mongodb.metrics.cursor.open.total

The number of cursors that MongoDB is maintaining for clients.

type: long

document

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Reflects document access and modification patterns.

mongodb.metrics.document.deleted

The total number of documents deleted.

type: long

mongodb.metrics.document.inserted

The total number of documents inserted.

type: long

mongodb.metrics.document.returned

The total number of documents returned by queries.

type: long

mongodb.metrics.document.updated

The total number of documents updated.

type: long

get_last_error

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Returns the error status of the preceding write operation on the current connection.

mongodb.metrics.get_last_error.write_wait.ms

The total amount of time in milliseconds that the mongod has spent performing getLastError operations with write concern (i.e. w) greater than 1.

type: long

mongodb.metrics.get_last_error.write_wait.count

The total number of getLastError operations with a specified write concern (i.e. w) greater than 1.

type: long

mongodb.metrics.get_last_error.write_timeouts

The number of times that write concern operations have timed out as a result of the wtimeout threshold to getLastError.

type: long

operation

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Holds counters for several types of update and query operations that MongoDB handles using special operation types.

mongodb.metrics.operation.scan_and_order

The total number of queries that return sorted numbers that cannot perform the sort operation using an index.

type: long

mongodb.metrics.operation.write_conflicts

The total number of queries that encountered write conflicts.

type: long

query_executor

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Reports data from the query execution system.

mongodb.metrics.query_executor.scanned_indexes.count

The total number of index items scanned during queries and query-plan evaluation.

type: long

mongodb.metrics.query_executor.scanned_documents.count

The total number of documents scanned during queries and query-plan evaluation.

type: long

replication

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Reports metrics related to the replication process. metrics.replication appears on all mongod instances, even those that aren’t members of replica sets.

executor

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Reports on various statistics for the replication executor.

mongodb.metrics.replication.executor.counters.event_created: type: long
mongodb.metrics.replication.executor.counters.event_wait: type: long
mongodb.metrics.replication.executor.counters.cancels: type: long
mongodb.metrics.replication.executor.counters.waits: type: long
mongodb.metrics.replication.executor.counters.scheduled.netcmd: type: long
mongodb.metrics.replication.executor.counters.scheduled.dbwork: type: long
mongodb.metrics.replication.executor.counters.scheduled.exclusive: type: long
mongodb.metrics.replication.executor.counters.scheduled.work_at: type: long
mongodb.metrics.replication.executor.counters.scheduled.work: type: long
mongodb.metrics.replication.executor.counters.scheduled.failures: type: long
mongodb.metrics.replication.executor.queues.in_progress.network: type: long
mongodb.metrics.replication.executor.queues.in_progress.dbwork: type: long
mongodb.metrics.replication.executor.queues.in_progress.exclusive: type: long
mongodb.metrics.replication.executor.queues.sleepers: type: long
mongodb.metrics.replication.executor.queues.ready: type: long
mongodb.metrics.replication.executor.queues.free: type: long
mongodb.metrics.replication.executor.unsignaled_events: type: long
mongodb.metrics.replication.executor.event_waiters: type: long
mongodb.metrics.replication.executor.shutting_down: type: boolean
mongodb.metrics.replication.executor.network_interface: type: keyword

apply

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Reports on the application of operations from the replication oplog.

mongodb.metrics.replication.apply.attempts_to_become_secondary: type: long

batches

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Reports on the oplog application process on secondaries members of replica sets.

mongodb.metrics.replication.apply.batches.count

The total number of batches applied across all databases.

type: long

mongodb.metrics.replication.apply.batches.time.ms

The total amount of time in milliseconds the mongod has spent applying operations from the oplog.

type: long

mongodb.metrics.replication.apply.ops

The total number of oplog operations applied.

type: long

buffer

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MongoDB buffers oplog operations from the replication sync source buffer before applying oplog entries in a batch. metrics.replication.buffer provides a way to track the oplog buffer.

mongodb.metrics.replication.buffer.count

The current number of operations in the oplog buffer.

type: long

mongodb.metrics.replication.buffer.max_size.bytes

The maximum size of the buffer. This value is a constant setting in the mongod, and is not configurable.

type: long

mongodb.metrics.replication.buffer.size.bytes

The current size of the contents of the oplog buffer.

type: long

initial_sync

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Report initial sync status

mongodb.metrics.replication.initial_sync.completed: type: long
mongodb.metrics.replication.initial_sync.failed_attempts: type: long
mongodb.metrics.replication.initial_sync.failures: type: long

network

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Reports network use by the replication process.

mongodb.metrics.replication.network.bytes

The total amount of data read from the replication sync source.

type: long

getmores

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Reports on the getmore operations, which are requests for additional results from the oplog cursor as part of the oplog replication process.

mongodb.metrics.replication.network.getmores.count

The total number of getmore operations

type: long

mongodb.metrics.replication.network.getmores.time.ms

The total amount of time required to collect data from getmore operations.

type: long

mongodb.metrics.replication.network.ops

The total number of operations read from the replication source.

type: long

mongodb.metrics.replication.network.reders_created

The total number of oplog query processes created.

type: long

preload

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Reports on the pre-fetch stage, where MongoDB loads documents and indexes into RAM to improve replication throughput.

docs

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Reports on the documents loaded into memory during the pre-fetch stage.

mongodb.metrics.replication.preload.docs.count

The total number of documents loaded during the pre-fetch stage of replication.

type: long

mongodb.metrics.replication.preload.docs.time.ms

type: long

indexes

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Reports on the index items loaded into memory during the pre-fetch stage of replication.

mongodb.metrics.replication.preload.indexes.count

The total number of index entries loaded by members before updating documents as part of the pre-fetch stage of replication.

type: long

mongodb.metrics.replication.preload.indexes.time.ms

The total amount of time, in milliseconds, spent loading index entries as part of the pre-fetch stage of replication.

type: long

mongodb.metrics.storage.free_list.search.bucket_exhausted

The number of times that mongod has checked the free list without finding a suitably large record allocation.

type: long

mongodb.metrics.storage.free_list.search.requests

The number of times mongod has searched for available record allocations.

type: long

mongodb.metrics.storage.free_list.search.scanned

The number of available record allocations mongod has searched.

type: long

ttl

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Reports on the operation of the resource use of the ttl index process.

mongodb.metrics.ttl.deleted_documents.count

The total number of documents deleted from collections with a ttl index.

type: long

mongodb.metrics.ttl.passes.count

The number of times the background process removes documents from collections with a ttl index.

type: long

replstatus

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replstatus provides an overview of replica set status.

oplog

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oplog provides an overview of replication oplog status, which is retrieved from db.getReplicationInfo().

mongodb.replstatus.oplog.size.allocated

The total amount of space used by the replstatus in bytes.

type: long

format: bytes

mongodb.replstatus.oplog.size.used

total amount of space allocated to the replstatus in bytes.

type: long

format: bytes

mongodb.replstatus.oplog.first.timestamp

Timestamp of the first (i.e. earliest) operation in the replstatus

type: long

mongodb.replstatus.oplog.last.timestamp

Timestamp of the last (i.e. latest) operation in the replstatus

type: long

mongodb.replstatus.oplog.window

The difference between the first and last operation in the replstatus.

type: long

mongodb.replstatus.set_name

The name of the replica set.

type: keyword

mongodb.replstatus.server_date

Reflects the current time according to the server that processed the replSetGetStatus command.

type: date

mongodb.replstatus.optimes.last_committed

Information, from the viewpoint of this member, regarding the most recent operation that has been written to a majority of replica set members.

type: long

mongodb.replstatus.optimes.applied

Information, from the viewpoint of this member, regarding the most recent operation that has been applied to this member of the replica set.

type: long

mongodb.replstatus.optimes.durable

Information, from the viewpoint of this member, regarding the most recent operation that has been written to the journal of this member of the replica set.

type: long

lag

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Delay between a write operation on the primary and its copy to a secondary

mongodb.replstatus.lag.max

Difference between optime of primary and slowest secondary

type: long

format: duration

mongodb.replstatus.lag.min

Difference between optime of primary and fastest secondary

type: long

format: duration

headroom

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Difference between the primary’s oplog window and the replication lag of the secondary

mongodb.replstatus.headroom.max

Difference between primary’s oplog window and the replication lag of the fastest secondary

type: long

format: duration

mongodb.replstatus.headroom.min

Difference between primary’s oplog window and the replication lag of the slowest secondary

type: long

format: duration

members

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Provides information about members of replica set grouped by their state

mongodb.replstatus.members.primary.host

Host address of the primary

type: keyword

mongodb.replstatus.members.primary.optime

Optime of primary

type: keyword

mongodb.replstatus.members.secondary.hosts

List of secondary hosts

type: keyword

mongodb.replstatus.members.secondary.optimes

Optimes of secondaries

type: keyword

mongodb.replstatus.members.secondary.count

type: long

mongodb.replstatus.members.recovering.hosts

List of recovering members hosts

type: keyword

mongodb.replstatus.members.recovering.count

Count of members in the recovering state

type: long

mongodb.replstatus.members.unknown.hosts

List of members' hosts in the unknown state

type: keyword

mongodb.replstatus.members.unknown.count

Count of members with unknown state

type: long

mongodb.replstatus.members.startup2.hosts

List of initializing members hosts

type: keyword

mongodb.replstatus.members.startup2.count

Count of members in the startup2 state

type: long

mongodb.replstatus.members.arbiter.hosts

List of arbiters hosts

type: keyword

mongodb.replstatus.members.arbiter.count

Count of arbiters

type: long

mongodb.replstatus.members.down.hosts

List of down members hosts

type: keyword

mongodb.replstatus.members.down.count

Count of down members

type: long

mongodb.replstatus.members.rollback.hosts

List of members in the rollback state

type: keyword

mongodb.replstatus.members.rollback.count

Count of members in the rollback state

type: long

mongodb.replstatus.members.unhealthy.hosts

List of members' hosts with healthy = false

type: keyword

mongodb.replstatus.members.unhealthy.count

Count of unhealthy members

type: long

status

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MongoDB server status metrics.

mongodb.status.version

Instance version.

type: alias

alias to: service.version

mongodb.status.process

The current MongoDB process. Possible values are mongos or mongod.

type: alias

alias to: process.name

mongodb.status.uptime.ms

Instance uptime in milliseconds.

type: long

mongodb.status.local_time

Local time as reported by the MongoDB instance.

type: date

mongodb.status.asserts.regular

Number of regular assertions produced by the server.

type: long

mongodb.status.asserts.warning

Number of warning assertions produced by the server.

type: long

mongodb.status.asserts.msg

Number of msg assertions produced by the server.

type: long

mongodb.status.asserts.user

Number of user assertions produced by the server.

type: long

mongodb.status.asserts.rollovers

Number of rollovers assertions produced by the server.

type: long

connections

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Data regarding the current status of incoming connections and availability of the database server.

mongodb.status.connections.current

The number of connections to the database server from clients. This number includes the current shell session. Consider the value of available to add more context to this datum.

type: long

mongodb.status.connections.available

The number of unused available incoming connections the database can provide.

type: long

mongodb.status.connections.total_created

A count of all incoming connections created to the server. This number includes connections that have since closed.

type: long

extra_info

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Platform specific data.

mongodb.status.extra_info.heap_usage.bytes

The total size in bytes of heap space used by the database process. Only available on Unix/Linux.

type: long

format: bytes

mongodb.status.extra_info.page_faults

The total number of page faults that require disk operations. Page faults refer to operations that require the database server to access data that isn’t available in active memory.

type: long

global_lock

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Reports on lock state of the database.

mongodb.status.global_lock.total_time.us

The time, in microseconds, since the database last started and created the globalLock. This is roughly equivalent to total server uptime.

type: long

current_queue

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The number of operations queued because of a lock.

mongodb.status.global_lock.current_queue.total

The total number of operations queued waiting for the lock (i.e., the sum of current_queue.readers and current_queue.writers).

type: long

mongodb.status.global_lock.current_queue.readers

The number of operations that are currently queued and waiting for the read lock.

type: long

mongodb.status.global_lock.current_queue.writers

The number of operations that are currently queued and waiting for the write lock.

type: long

active_clients

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The number of connected clients and the read and write operations performed by these clients.

mongodb.status.global_lock.active_clients.total

Total number of the active client connections performing read or write operations.

type: long

mongodb.status.global_lock.active_clients.readers

The number of the active client connections performing read operations.

type: long

mongodb.status.global_lock.active_clients.writers

The number of the active client connections performing write operations.

type: long

locks

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A document that reports for each lock <type>, data on lock <mode>s. The possible lock <type>s are global, database, collection, metadata and oplog. The possible <mode>s are r, w, R and W which respresent shared, exclusive, intent shared and intent exclusive. locks.<type>.acquire.count.<mode> shows the number of times the lock was acquired in the specified mode. locks.<type>.wait.count.<mode> shows the number of times the locks.acquireCount lock acquisitions encountered waits because the locks were held in a conflicting mode. locks.<type>.wait.us.<mode> shows the cumulative wait time in microseconds for the lock acquisitions. locks.<type>.deadlock.count.<mode> shows the number of times the lock acquisitions encountered deadlocks.

mongodb.status.locks.global.acquire.count.r: type: long
mongodb.status.locks.global.acquire.count.w: type: long
mongodb.status.locks.global.acquire.count.R: type: long
mongodb.status.locks.global.acquire.count.W: type: long
mongodb.status.locks.global.wait.count.r: type: long
mongodb.status.locks.global.wait.count.w: type: long
mongodb.status.locks.global.wait.count.R: type: long
mongodb.status.locks.global.wait.count.W: type: long
mongodb.status.locks.global.wait.us.r: type: long
mongodb.status.locks.global.wait.us.w: type: long
mongodb.status.locks.global.wait.us.R: type: long
mongodb.status.locks.global.wait.us.W: type: long
mongodb.status.locks.global.deadlock.count.r: type: long
mongodb.status.locks.global.deadlock.count.w: type: long
mongodb.status.locks.global.deadlock.count.R: type: long
mongodb.status.locks.global.deadlock.count.W: type: long
mongodb.status.locks.database.acquire.count.r: type: long
mongodb.status.locks.database.acquire.count.w: type: long
mongodb.status.locks.database.acquire.count.R: type: long
mongodb.status.locks.database.acquire.count.W: type: long
mongodb.status.locks.database.wait.count.r: type: long
mongodb.status.locks.database.wait.count.w: type: long
mongodb.status.locks.database.wait.count.R: type: long
mongodb.status.locks.database.wait.count.W: type: long
mongodb.status.locks.database.wait.us.r: type: long
mongodb.status.locks.database.wait.us.w: type: long
mongodb.status.locks.database.wait.us.R: type: long
mongodb.status.locks.database.wait.us.W: type: long
mongodb.status.locks.database.deadlock.count.r: type: long
mongodb.status.locks.database.deadlock.count.w: type: long
mongodb.status.locks.database.deadlock.count.R: type: long
mongodb.status.locks.database.deadlock.count.W: type: long
mongodb.status.locks.collection.acquire.count.r: type: long
mongodb.status.locks.collection.acquire.count.w: type: long
mongodb.status.locks.collection.acquire.count.R: type: long
mongodb.status.locks.collection.acquire.count.W: type: long
mongodb.status.locks.collection.wait.count.r: type: long
mongodb.status.locks.collection.wait.count.w: type: long
mongodb.status.locks.collection.wait.count.R: type: long
mongodb.status.locks.collection.wait.count.W: type: long
mongodb.status.locks.collection.wait.us.r: type: long
mongodb.status.locks.collection.wait.us.w: type: long
mongodb.status.locks.collection.wait.us.R: type: long
mongodb.status.locks.collection.wait.us.W: type: long
mongodb.status.locks.collection.deadlock.count.r: type: long
mongodb.status.locks.collection.deadlock.count.w: type: long
mongodb.status.locks.collection.deadlock.count.R: type: long
mongodb.status.locks.collection.deadlock.count.W: type: long
mongodb.status.locks.meta_data.acquire.count.r: type: long
mongodb.status.locks.meta_data.acquire.count.w: type: long
mongodb.status.locks.meta_data.acquire.count.R: type: long
mongodb.status.locks.meta_data.acquire.count.W: type: long
mongodb.status.locks.meta_data.wait.count.r: type: long
mongodb.status.locks.meta_data.wait.count.w: type: long
mongodb.status.locks.meta_data.wait.count.R: type: long
mongodb.status.locks.meta_data.wait.count.W: type: long
mongodb.status.locks.meta_data.wait.us.r: type: long
mongodb.status.locks.meta_data.wait.us.w: type: long
mongodb.status.locks.meta_data.wait.us.R: type: long
mongodb.status.locks.meta_data.wait.us.W: type: long
mongodb.status.locks.meta_data.deadlock.count.r: type: long
mongodb.status.locks.meta_data.deadlock.count.w: type: long
mongodb.status.locks.meta_data.deadlock.count.R: type: long
mongodb.status.locks.meta_data.deadlock.count.W: type: long
mongodb.status.locks.oplog.acquire.count.r: type: long
mongodb.status.locks.oplog.acquire.count.w: type: long
mongodb.status.locks.oplog.acquire.count.R: type: long
mongodb.status.locks.oplog.acquire.count.W: type: long
mongodb.status.locks.oplog.wait.count.r: type: long
mongodb.status.locks.oplog.wait.count.w: type: long
mongodb.status.locks.oplog.wait.count.R: type: long
mongodb.status.locks.oplog.wait.count.W: type: long
mongodb.status.locks.oplog.wait.us.r: type: long
mongodb.status.locks.oplog.wait.us.w: type: long
mongodb.status.locks.oplog.wait.us.R: type: long
mongodb.status.locks.oplog.wait.us.W: type: long
mongodb.status.locks.oplog.deadlock.count.r: type: long
mongodb.status.locks.oplog.deadlock.count.w: type: long
mongodb.status.locks.oplog.deadlock.count.R: type: long
mongodb.status.locks.oplog.deadlock.count.W: type: long

network

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Platform specific data.

mongodb.status.network.in.bytes

The amount of network traffic, in bytes, received by this database.

type: long

format: bytes

mongodb.status.network.out.bytes

The amount of network traffic, in bytes, sent from this database.

type: long

format: bytes

mongodb.status.network.requests

The total number of requests received by the server.

type: long

ops.latencies

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Operation latencies for the database as a whole. Only mongod instances report this metric.

mongodb.status.ops.latencies.reads.latency

Total combined latency in microseconds.

type: long

mongodb.status.ops.latencies.reads.count

Total number of read operations performed on the collection since startup.

type: long

mongodb.status.ops.latencies.writes.latency

Total combined latency in microseconds.

type: long

mongodb.status.ops.latencies.writes.count

Total number of write operations performed on the collection since startup.

type: long

mongodb.status.ops.latencies.commands.latency

Total combined latency in microseconds.

type: long

mongodb.status.ops.latencies.commands.count

Total number of commands performed on the collection since startup.

type: long

ops.counters

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An overview of database operations by type.

mongodb.status.ops.counters.insert

The total number of insert operations received since the mongod instance last started.

type: long

mongodb.status.ops.counters.query

The total number of queries received since the mongod instance last started.

type: long

mongodb.status.ops.counters.update

The total number of update operations received since the mongod instance last started.

type: long

mongodb.status.ops.counters.delete

The total number of delete operations received since the mongod instance last started.

type: long

mongodb.status.ops.counters.getmore

The total number of getmore operations received since the mongod instance last started.

type: long

mongodb.status.ops.counters.command

The total number of commands issued to the database since the mongod instance last started.

type: long

ops.replicated

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An overview of database replication operations by type.

mongodb.status.ops.replicated.insert

The total number of replicated insert operations received since the mongod instance last started.

type: long

mongodb.status.ops.replicated.query

The total number of replicated queries received since the mongod instance last started.

type: long

mongodb.status.ops.replicated.update

The total number of replicated update operations received since the mongod instance last started.

type: long

mongodb.status.ops.replicated.delete

The total number of replicated delete operations received since the mongod instance last started.

type: long

mongodb.status.ops.replicated.getmore

The total number of replicated getmore operations received since the mongod instance last started.

type: long

mongodb.status.ops.replicated.command

The total number of replicated commands issued to the database since the mongod instance last started.

type: long

memory

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Data about the current memory usage of the mongod server.

mongodb.status.memory.bits

Either 64 or 32, depending on which target architecture was specified during the mongod compilation process.

type: long

mongodb.status.memory.resident.mb

The amount of RAM, in megabytes (MB), currently used by the database process.

type: long

mongodb.status.memory.virtual.mb

The amount, in megabytes (MB), of virtual memory used by the mongod process.

type: long

mongodb.status.memory.mapped.mb

The amount of mapped memory, in megabytes (MB), used by the database. 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.

type: long

mongodb.status.memory.mapped_with_journal.mb

The amount of mapped memory, in megabytes (MB), including the memory used for journaling.

type: long

mongodb.status.write_backs_queued

True when there are operations from a mongos instance queued for retrying.

type: boolean

mongodb.status.storage_engine.name

A string that represents the name of the current storage engine.

type: keyword

wired_tiger

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Statistics about the WiredTiger storage engine.

concurrent_transactions

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Statistics about the transactions currently in progress.

mongodb.status.wired_tiger.concurrent_transactions.write.out

Number of concurrent write transaction in progress.

type: long

mongodb.status.wired_tiger.concurrent_transactions.write.available

Number of concurrent write tickets available.

type: long

mongodb.status.wired_tiger.concurrent_transactions.write.total_tickets

Number of total write tickets.

type: long

mongodb.status.wired_tiger.concurrent_transactions.read.out

Number of concurrent read transaction in progress.

type: long

mongodb.status.wired_tiger.concurrent_transactions.read.available

Number of concurrent read tickets available.

type: long

mongodb.status.wired_tiger.concurrent_transactions.read.total_tickets

Number of total read tickets.

type: long

cache

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Statistics about the cache and page evictions from the cache.

mongodb.status.wired_tiger.cache.maximum.bytes

Maximum cache size.

type: long

format: bytes

mongodb.status.wired_tiger.cache.used.bytes

Size in byte of the data currently in cache.

type: long

format: bytes

mongodb.status.wired_tiger.cache.dirty.bytes

Size in bytes of the dirty data in the cache.

type: long

format: bytes

mongodb.status.wired_tiger.cache.pages.read

Number of pages read into the cache.

type: long

mongodb.status.wired_tiger.cache.pages.write

Number of pages written from the cache.

type: long

mongodb.status.wired_tiger.cache.pages.evicted

Number of pages evicted from the cache.

type: long

log

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Statistics about the write ahead log used by WiredTiger.

mongodb.status.wired_tiger.log.size.bytes

Total log size in bytes.

type: long

format: bytes

mongodb.status.wired_tiger.log.write.bytes

Number of bytes written into the log.

type: long

format: bytes

mongodb.status.wired_tiger.log.max_file_size.bytes

Maximum file size.

type: long

format: bytes

mongodb.status.wired_tiger.log.flushes

Number of flush operations.

type: long

mongodb.status.wired_tiger.log.writes

Number of write operations.

type: long

mongodb.status.wired_tiger.log.scans

Number of scan operations.

type: long

mongodb.status.wired_tiger.log.syncs

Number of sync operations.

type: long

background_flushing

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Data about the process MongoDB uses to write data to disk. This data is only available for instances that use the MMAPv1 storage engine.

mongodb.status.background_flushing.flushes

A counter that collects the number of times the database has flushed all writes to disk.

type: long

mongodb.status.background_flushing.total.ms

The total number of milliseconds (ms) that the mongod processes have spent writing (i.e. flushing) data to disk. Because this is an absolute value, consider the value of flushes and average_ms to provide better context for this datum.

type: long

mongodb.status.background_flushing.average.ms

The average time spent flushing to disk per flush event.

type: long

mongodb.status.background_flushing.last.ms

The amount of time, in milliseconds, that the last flush operation took to complete.

type: long

mongodb.status.background_flushing.last_finished

A timestamp of the last completed flush operation.

type: date

journaling

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Data about the journaling-related operations and performance. Journaling information only appears for mongod instances that use the MMAPv1 storage engine and have journaling enabled.

mongodb.status.journaling.commits

The number of transactions written to the journal during the last journal group commit interval.

type: long

mongodb.status.journaling.journaled.mb

The amount of data in megabytes (MB) written to journal during the last journal group commit interval.

type: long

mongodb.status.journaling.write_to_data_files.mb

The amount of data in megabytes (MB) written from journal to the data files during the last journal group commit interval.

type: long

mongodb.status.journaling.compression

The compression ratio of the data written to the journal.

type: long

mongodb.status.journaling.commits_in_write_lock

Count of the commits that occurred while a write lock was held. Commits in a write lock indicate a MongoDB node under a heavy write load and call for further diagnosis.

type: long

mongodb.status.journaling.early_commits

The number of times MongoDB requested a commit before the scheduled journal group commit interval.

type: long

times

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Information about the performance of the mongod instance during the various phases of journaling in the last journal group commit interval.

mongodb.status.journaling.times.dt.ms

The amount of time over which MongoDB collected the times data. Use this field to provide context to the other times field values.

type: long

mongodb.status.journaling.times.prep_log_buffer.ms

The amount of time spent preparing to write to the journal. Smaller values indicate better journal performance.

type: long

mongodb.status.journaling.times.write_to_journal.ms

The amount of time spent actually writing to the journal. File system speeds and device interfaces can affect performance.

type: long

mongodb.status.journaling.times.write_to_data_files.ms

The amount of time spent writing to data files after journaling. File system speeds and device interfaces can affect performance.

type: long

mongodb.status.journaling.times.remap_private_view.ms

The amount of time spent remapping copy-on-write memory mapped views. Smaller values indicate better journal performance.

type: long

mongodb.status.journaling.times.commits.ms

The amount of time spent for commits.

type: long

mongodb.status.journaling.times.commits_in_write_lock.ms

The amount of time spent for commits that occurred while a write lock was held.

type: long

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