(Thanks Aaron, I will try those stepsŠ.why are those steps not on this
page
http://www.datastax.com/docs/1.0/operations/tuning#tuning-java-heap-size )
I don't have much disk used at this point(roughly 130G per node). Here
are the numbers for the data mount and the commitlog mount(commit log is
s
Roughly how much data do you have per node?
Sent from my iPhone
On Feb 20, 2013, at 10:49 AM, "Hiller, Dean" wrote:
> I took this jmap dump of cassandra(in production). Before I restarted the
> whole production cluster, I had some nodes running compaction and it looked
> like all memory had
Cannot comment too much on the jmap but I can add my general "compaction is
hurting" strategy.
Try any or all of the following to get to a stable setup, then increase until
things go bang.
Set concurrent compactors to 2.
Reduce compaction throughput by half.
Reduce in_memory_compaction_limi
I took this jmap dump of cassandra(in production). Before I restarted the
whole production cluster, I had some nodes running compaction and it looked
like all memory had been consumed(kind of like cassandra is not clearing out
the caches or memtables fast enough). I am trying to still debug co
