ClusterControl Documentation
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# 5.4.6. Performance¶

## 5.4.6.1. Mongo Stats¶

Quick overview of the status of running mongod instances grouped by shard (or replica set) similar to mongostat command collected every db_stats_collection_interval (configured inside CMON configuration file).

• Queries
• The number of query operations per second.
• Inserts
• The number of objects inserted into the database per second. If followed by an asterisk (e.g. *), the datum refers to a replicated operation.
• The number of update operations per second.
• Deletes
• The number of delete operations per second.
• Command
• The number of commands per second.
• Getmore
• The number of get more (i.e. cursor batch) operations per second.
• Vsize
• The amount of virtual memory in megabytes used by the process at the time of the last mongostat call.
• Res
• The amount of resident memory in megabytes used by the process at the time of the last mongostat call.
• Faults
• The number of page faults per second.
• Locked(%)
• The percent of time in a global write lock.
• idx miss(%)
• The percent of index access attempts that required a page fault to load a btree node.
• qr|qw
• qr - The length of the queue of clients waiting to read data from the MongoDB instance.
• qw - The length of the queue of clients waiting to write data from the MongoDB instance.
• ar|aw
• ar - The number of active clients performing read operations.
• aw - The number of active clients performing write operations.
• NetIn
• The amount of network traffic, in bytes, received by the MongoDB instance.
• NetOut
• The amount of network traffic, in bytes, sent by the MongoDB instance.
• Conn
• The total number of open connections.
• Time
• The last time ClusterControl fetch for node’s status.

## 5.4.6.2. Overview¶

Provides an overview of database operations by type and makes it possible to analyze the load on the database in more granular manner.

• opcounters
• An aggregated view of all opscounters in a single graph.
• opcounters.query
• Provides a graph of the total number of queries received since the mongod instance last started.
• opcounters.insert
• Provides a graph of the total number of insert operations received since the mongod instance last started.
• opcounters.update
• Provides a graph of the total number of update operations received since the mongod instance last started.
• opcounters.delete
• Provides a graph of the total number of delete operations since the mongod instance last started.
• opcounters.getmore
• Provides a graph of the total number of “getmore” operations since the mongod instance last started.
• opcounters.command
• Provides a graph of the total number of commands issued to the database since the mongod instance last started.

Lists of scheduled advisors’ results created in ClusterControl > Manage > Developer Studio using ClusterControl DSL. You can think of it like a ‘scheduled mini-program’ which executes a script created in Developer Studio and produces a result containing status, advice and justification. Each advisor can be expanded and collapsed by clicking on the dropdown icon at the top right corner.