eG Monitoring
 

Measures reported by MongoLargeCollTest

MongoDB stores documents in collections. Collections are analogous to tables in relational databases. Collections are leading consumers of database space. Larger the collection, larger will be the database size.

If the MongoDbSpaceTest test reveals that a particular database is growing in size rapidly, you can use the MongoLargeCollTest test to precisely pinpoint the collection in that database, which is contributing to the abnormal database growth. This test auto-discovers the databases on a target MongoDB server and reports the number of collections that exceed a configured size. Detailed diagnostics of this test lists the large collections.

Outputs of the test : One set of results for each database in the target MongoDB server being monitored.

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
Max_collection_count Indicates the number of collections in this database that are of a size larger than the value configured against COLLECTION SIZE IN GB parameter Number Use the detailed diagnosis of this test to know which are the large collections.
Collection_max_size Indicates the size of the largest collection. GB