vsuslov wrote > [SEVERE][grid-nio-worker-2-#197%null%][TcpCommunicationSpi] Caught > unhandled exception in NIO worker thread (restart the node). > java.lang.OutOfMemoryError: GC overhead limit exceeded
So you just ran out of memory. You should either allocate more heap memory on server nodes or switch to offheap: https://apacheignite.readme.io/docs/off-heap-memory -Val -- View this message in context: http://apache-ignite-users.70518.x6.nabble.com/H2-exception-lots-of-queries-tp1190p1244.html Sent from the Apache Ignite Users mailing list archive at Nabble.com.
