I run a development Cassandra single node server on both ubuntu & windows 8 on my dual boot 4GB(RAM) machine.
I see that cassandra runs fine under windows without any crashes or OOMs however in ubuntu on same machine, it always gives an OOM message *$* *sudo service cassandra start* xss = -ea -javaagent:/usr/share/cassandra/lib/jamm-0.2.5.jar -XX:+UseThreadPriorities -XX:ThreadPriorityPolicy=42 -Xms4G -Xmx4G -Xmn800M -XX:+HeapDumpOnOutOfMemoryError -Xss256k Here is the memory usage for empty cassandra server in ubuntu. *(PID)1169 (USER)cassandr (PR)20 (NI)0 (VIRT)2639m (RES)1.3g (SHR)17m S (%CPU)1 (%MEMORY)33.9 (TIME)0:53.80 (COMMAND)java* The memory usage however while running under windows is very low relative to this. What is the reason behind this ? Also how can I prevent these OOMs within Ubuntu? I am running Datastax's DSC version 2.0.3.
