Confused with the problem when, after the few success batch operations, on next batch operation Cassandra hung and become unresponseble. This has been going on for several hours, i provide munin graph of memory usage and load CPU. Disk operations is not happening. No fail records in log. There are no any(!) records in log after freeze happend.
top command says this:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1362 cassandr 20 0 10.5g 8.5g 15m S 100 27.1 75:18.82 jsvc
11080 root 20 0 21468 1348 992 R 0 0.0 0:00.01 top
1 root 20 0 24060 2168 1320 S 0 0.0 0:00.74 init
Munin graps since freeze started:
I have no idea what to do with this :(