Hello.
Any messages about GC earlier in the logs? Cassandra server monitors
memory and starts complaining in advance if memory gets full.
Any chance you've got a full key delete-only scenario for some column
families? Cassandra has a bug not being able to flush such memtables.
I've filled a bu
What does the heap dump show is using the memory?
On Fri, Feb 24, 2012 at 3:14 PM, Feng Qu wrote:
> Hello,
>
> We have a 6-node ring running 0.8.6 on RHEL 6.1. The first node also runs
> OpsCenter community. This node has crashed few time recently with
> "OutOfMemoryError: Java heap space" while
> several compactions on few 200-300 GB SSTables
Sounds like some big files. Out of interest how much data do you have per node
?
Also do you have wide rows ? Can check via nodetool cfstats.
In cases where OOM / GC is related to compaction these are the steps i take
first. It's heavy handed an
Hello,
We have a 6-node ring running 0.8.6 on RHEL 6.1. The first node also runs
OpsCenter community. This node has crashed few time recently with
"OutOfMemoryError: Java heap space" while several compactions on few 200-300 GB
SSTables were running. We are using 8GB Java heap on host with 96GB
