MongoDB

Overview

The MongoDB integration with Motadata AIOps provides visibility into database performance, operations, memory usage, cache efficiency, and collection-level statistics. By monitoring these KPIs, administrators can optimize queries, track resource utilization, and ensure the reliability of MongoDB deployments.

Prerequisites

Ensure the following prerequisites are met:

• MongoDB instance must be reachable over the network.
• Monitoring credentials (username/password or key file) must be available.
• MongoDB should have monitoring commands enabled (db.serverStatus, dbStats, collStats).
• The instance must be added and discovered using the MongoDB plugin in Motadata AIOps.

List of Supported KPIs

General Metrics

Metric	Description	Type
mongodb.version	Version of MongoDB server.	String
mongodb.commits	Total number of commits.	Count
mongodb.cache.size.bytes	Cache size in bytes.	Bytes
mongodb.dirty.cache.size.bytes	Dirty cache size in bytes.	Bytes
mongodb.cache.read.size.bytes	Amount of data read from cache in bytes.	Bytes
mongodb.cache.write.size.bytes	Amount of data written to cache in bytes.	Bytes
mongodb.pages.read	Total pages read.	Count
mongodb.pages.write	Total pages written.	Count
mongodb.pages.requested	Total page requests.	Count
mongodb.pages.evicted	Total pages evicted from cache.	Count
mongodb.page.faults	Number of page faults.	Count
mongodb.cache.configured.size.bytes	Configured cache size in bytes.	Bytes
mongodb.available.connections	Number of available connections.	Count
mongodb.used.connections	Number of used connections.	Count
mongodb.created.connections	Total created connections.	Count
mongodb.network.in.bytes	Incoming network bytes.	Bytes
mongodb.network.out.bytes	Outgoing network bytes.	Bytes
mongodb.network.requests	Number of network requests.	Count
mongodb.read.latency.ms	Average read latency.	Milliseconds
mongodb.write.latency.ms	Average write latency.	Milliseconds
mongodb.read.response.time.ms	Average read response time.	Milliseconds
mongodb.write.response.time.ms	Average write response time.	Milliseconds
mongodb.insert.operations.rate	Insert operations per second.	Count
mongodb.query.operations.rate	Query operations per second.	Count
mongodb.update.operations.rate	Update operations per second.	Count
mongodb.delete.operations.rate	Delete operations per second.	Count
mongodb.getmore.operations.rate	GetMore operations per second.	Count
mongodb.operations.rate	Overall operations per second.	Count
mongodb.virtual.memory.bytes	Virtual memory in use.	Bytes
mongodb.resident.memory.bytes	Resident memory in use.	Bytes
mongodb.global.lock.queue	Total global lock queue length.	Count
mongodb.global.read.lock.queue	Read lock queue length.	Count
mongodb.global.write.lock.queue	Write lock queue length.	Count
mongodb.global.lock.active.clients	Total active clients holding locks.	Count
mongodb.global.read.lock.active.clients	Active clients with read locks.	Count
mongodb.global.write.lock.active.clients	Active clients with write locks.	Count
mongodb.assert.regular	Number of regular assertions.	Count
mongodb.assert.warning	Number of warning assertions.	Count
mongodb.assert.messages	Number of assertion messages.	Count
mongodb.assert.user	Number of user assertions.	Count
mongodb.timed.out.cursors	Number of timed-out cursors.	Count
mongodb.db.read.lock	Database-level read lock.	Count
mongodb.db.write.lock	Database-level write lock.	Count
mongodb.global.read.lock	Global read lock count.	Count
mongodb.global.write.lock	Global write lock count.	Count
mongodb.db.write.conflicts	Write conflicts at database level.	Count
mongodb.db.operation.scan	Number of scanned operations.	Count
mongodb.inserted.documents	Total documents inserted.	Count
mongodb.deleted.documents	Total documents deleted.	Count
mongodb.returned.documents	Total documents returned.	Count
mongodb.matched.documents	Total documents matched.	Count
mongodb.examined.index	Total index entries examined.	Count
mongodb.examined.documents	Total documents examined.	Count
mongodb.colscan.queries	Number of collection scan queries.	Count

Collection Metrics

Metric	Description	Type
mongodb.collection	Collection identifier.	String
mongodb.collection.name	Name of the collection.	String
mongodb.collection.database	Database name of the collection.	String
mongodb.collection.documents	Number of documents in the collection.	Count
mongodb.collection.data.size.bytes	Data size of the collection in bytes.	Bytes
mongodb.collection.storage.size.bytes	Storage size used by the collection in bytes.	Bytes
mongodb.collection.index.size.bytes	Total index size of the collection.	Bytes
mongodb.collection.indexes	Number of indexes on the collection.	Count
mongodb.collection.avg.document.size.bytes	Average document size in bytes.	Bytes
mongodb.collection.capacity.size.bytes	Total capacity size of the collection in bytes.	Bytes

Database Metrics

Metric	Description	Type
mongodb.database	Database identifier.	String
mongodb.database.data.size.bytes	Data size of the database in bytes.	Bytes
mongodb.database.storage.size.bytes	Storage size used by the database in bytes.	Bytes
mongodb.database.index.size.bytes	Total index size of the database in bytes.	Bytes
mongodb.database.file.size.bytes	File size used by the database in bytes.	Bytes
mongodb.database.collections	Number of collections in the database.	Count
mongodb.database.objects	Number of objects/documents in the database.	Count
mongodb.database.indexes	Number of indexes in the database.	Count
mongodb.database.avg.object.size.bytes	Average object/document size in bytes.	Bytes