CODEWITHSUNDEEP
javaspringmongodbmemory-leaksspring-data-mongodb
Sean Connolly
Sean Connolly

Reputation: 5802

Find spring-data-mongo MappingContext memory leak

I'm debugging a memory leak in my application which uses spring-data-mongodb.1.9.1.RELEASE.

MongoMappingContext is using up about a third of the heap. It has a reference to almost 30k PersistentEntity objects totaling over 140MB.

This memory leak is caused by holding unnecessary references to MongoDB data objects so they can't be garbage collected. Why might so many of these objects be held in the MappingContext if I never reference these PersistentEntity objects in my code?

Does holding on to my data model objects cause Spring Data MongoDB to hold onto it's data model objects?

Upvotes: 1

Views: 1996

Answers (1)

Oliver Drotbohm
Oliver Drotbohm

Reputation: 83081

Looks like you're running into DATACMNS-855, which has been fixed in the latest Hopper SR2.

Upvotes: 3

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