exchange core showing java.lang.OutOfMemoryError:Java Heap Space

[shanhashcah]

Hi @mzheravin

I am running exchange-core and there is huge number of offers lets say 467314 . And continuously users are placing orders and trading them. But my tomcat server throwing java.lang.OutOfMemoryError:Java Heap Space error after running certain time. If I restart the server then it will be ok but again it will throw that error.

Any suggestion how exchange-core can handle this bulk offers in production.

Thanks

[shanhashcah]

Hi @mzheravin any suggestion about my issue.

[ghost]

Hello,
i guess a heap analysis must begin with your favorite profiler, how much finalizer instance do you have ? etc etc

[shanhashcah]

That I need to check. But I have not changed the code, it is cloned from exchange-core. Here in production there are huge offers . So is this handle by exchange-core?

[ghost]

Hello,
did you check your JVM heap size ?? you can increase it.
A full profiling would be necessary as well.
regards
david

[mzheravin]

@shanhashcah you can make a heapdump and check its structure.
Apart from exchange core components, maybe some other objects are keept in memory?
How many symbols do you have?
What orderbook implementation are you using?

[shanhashcah]

Thank you @mzheravin for your response.

In my project there are 183 symbols.

I am using below code for orderbook implementation
L2MarketData snapshot = orderBookNaiveImpl.getL2MarketDataSnapshot(Integer.MAX_VALUE);

One more thing I would like to share that there are around 5-6 Lac offers.

Thanks