Hi Alex, I think, these threads are executing into pools of threads, and number of threads always restricted by pool size[1]. You can configure sizes manually:
<property name="marshallerCacheThreadPoolSize" value="12"/> <property name="utilityCachePoolSize" value="12"/> [1]: https://apacheignite.readme.io/v1.7/docs/performance-tips#configure-thread-pools -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/Remote-Server-Thread-Not-exit-when-Job-finished-Cause-out-of-memory-tp8934p8938.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.