Hello. C* have been running without any problem for some weeks but now it started to consume all available ram.
The cluster have very little data in it. There are no errors in logs, CPU is not loaded at all, jstack shows no deadlocks, there are 83 threads. Read/write latency is 1-4ms. The question is: how to find out where is the RAM used? # nodetool ring keyspace name Address DC Rack Status State Load Effective-Ownership Token 114967934986393518082067045023985443411 10.0.1.220 datacenter1 rack1 Up Normal 889.71 KB 100.00% 0 10.0.1.222 datacenter1 rack1 Up Normal 918.92 KB 100.00% 56662868904138943096229641828625627278 10.0.1.221 datacenter1 rack1 Up Normal 1.04 MB 100.00% 114967934986393518082067045023985443411 We use AWS m1.medium - 3.75 RAM, 1 Core java version "1.7.0_10" Java(TM) SE Runtime Environment (build 1.7.0_10-b18) Java HotSpot(TM) 64-Bit Server VM (build 23.6-b04, mixed mode) C* is started with the following command /usr/java/latest/bin/java -ea -javaagent:/usr/share/cassandra/lib/jamm-0.2.5.jar -XX:+UseThreadPriorities -XX:ThreadPriorityPolicy=42 -Xms1G -Xmx1G -Xmn512M -XX:+HeapDumpOnOutOfMemoryError -Xss256k -XX:+UseParNewGC Thanks in advance. Mikhail.
