> MAX_HEAP_SIZE="6G"
> HEAP_NEWSIZE="500M"
The new heap feels a little low, I often see 800M as a good number. It depends
on the number of cores, but if that's working stick with it.
> key_cache_size_in_mb: 512
Have you run this at the default and checked the cache hit rate using nodetool
info
It also use off-heap memory out of JVM. SerializingCacheProvider should be
one of the case.
Best Regards!
Jian Jin
2013/4/6
> Thank you Aaron and Bryan for your advice.
>
> I have changed following parameters and now Cassandra running absolutely
> fine. Please review below setting and advice
Thank you Aaron and Bryan for your advice.
I have changed following parameters and now Cassandra running
absolutely fine. Please review below setting and advice am I right or
right direction.
cassandra-env.sh
#JVM_OPTS="$JVM_OPTS -ea"
MAX_HEAP_SIZE="6G"
HEAP_NEWSIZE="500M"
cassandra.yaml
> We can see from below that you've tweaked and disabled many of the memory
> "safety valve" and other memory related settings.
Agree.
Also you are running with JVM heap size of 3.81GB which is non default. For a
16GB node I would expect 8GB.
Try restoring the yaml values to the defaults and
On Thu, Apr 4, 2013 at 1:27 AM, wrote:
>
> After some time (1 hour / 2 hour) cassandra shut services on one or two
> nodes with follwoing errors;
>
Wonder what the workload and schema is like ...
We can see from below that you've tweaked and disabled many of the memory
"safety valve" and other
