Any cron or other scheduler running on those nodes? no Lots of Java processes
running simultaneously? no, just Apache Cassandra Heavy repair continuously
running? none Lots of pending compactions? none, the cpu goes to 100% on first
seconds of insert (write load) so no memtable flushed yet, Is
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I guess the code experts could shed more light on
org.apache.cassandra.util.coalesceInternal and SepWorker.run.
I'll just add anything I can think of
Any cron or other scheduler running on those nodes?
Lots of Java processes running simultaneously?
Heavy repair continuously running?
Lots of pe
What takes the most CPU? System or User? most of it is used by
org.apache.cassandra.util.coalesceInternal and SepWorker.run Did you try
removing a problematic node and installing a brand new one (instead of
re-adding)? I did not install a new node, but did remove the problematic node
and CPU l
What takes the most CPU? System or User?
Did you try removing a problematic node and installing a brand new one
(instead of re-adding)?
When you decommissioned these nodes, did the high CPU "move" to other nodes
(probably data model/query issues) or was it completely gone? (server
issues)
On Sun,
I don't think that root cause is related to Cassandra config, because the nodes
are homogeneous and config for all of them are the same (16GB heap with default
gc), also mutation counter and Native Transport counter is the same in all of
the nodes, but only these 3 nodes experiencing 100% CPU us
Please avoid spamming this group with messages like these.
Thanks,
Hitesh dua
hiteshd...@gmail.com
On Sun, Oct 21, 2018 at 2:29 PM wrote:
> Hey,
>
> I just signed the petition "Chairman-Amul: Replace plastic milk packets
> with Biodegradable materials" and wanted to see if you could help by ad
Currently, before launching the production cluster, i run 'iperf -s' on half of
the cluster and then run 'iperf -c $nextIP' on the other half using parallel
ssh, So simultaneously all cluster's nodes are connecting together (paired) and
then examining the result of iperfs, doing the math that if
Hey,
I just signed the petition "Chairman-Amul: Replace plastic milk packets
with Biodegradable materials" and wanted to see if you could help by adding
your name.
Our goal is to reach 46,317 signatures and we need more support. You can
read more and sign the petition here:
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