Re: Why Ignite use so many heap space?

Hello! https://issues.apache.org/jira/browse/IGNITE-10224 might be related. Try closing connections every now and then. If it does not help, collect heap dump & analyze it. Regards, -- Ilya Kasnacheev пн, 12 нояб. 2018 г. в 12:44, yangjiajun <1371549...@qq.com>: > My test scenario: > 1.One

Re: Why Ignite use so many heap space?

My test scenario: 1.One ignite node uses 12GB heap memory and 30GB off-heap memory with persistence。Here is my cmd to start the node: nohup ./ignite.sh ../examples/config/example-ignite.xml -J-server -J-Xms12g -J-Xmx12g -J-XX:+AlwaysPreTouch -J-XX:+UseG1GC -J-XX:+ScavengeBeforeFullGC

Re: Why Ignite use so many heap space?

Hi! Thanks for your reply. My client application uses jdbc thin connection to test performance of merge into statement. We also use DPCP connection pooling providers to improve performance.According to your suggestions and my experiment,I think idle connections in the connection pool cause

Re: Why Ignite use so many heap space?

Hi! You said: "And it still uses 80%-85% of heap memory after I stop my application", I assume you mean your client application ? So after a GC it will still stay at 80% java heap usage ? I assume you are using off-heap memory ? I am not sure what the problem is, I am running an application