sstables keep growing on cassandra 2.1

[James Derieg <ja...@uplynk.com>]

Hi everyone,
I'm hoping someone can help me with a weird issue on Cassandra 2.1.
The sstables on my cluster keep growing to a huge number when I run a
nodetool repair.  On the attached graph, I ran a manual 'nodetool compact'
on each node in the cluster, which brought them back down to a low number
of sstables.  Then I immediately ran a nodetool repair, and the sstables
jumped back up.  Has anyone seen this behavior?  Is this expected? I have
some 2.0 clusters in the same environment, and they don't do this.
Thanks in advance for your help.
ᐧ

Re: sstables keep growing on cassandra 2.1

[Colin Kuo <co...@gmail.com>]

Hi,

Can you please firstly check the "nodetool compactionstats" during repair?
I'm afraid that minor compaction may be blocked by whatever tasks that
causes the number of SStable keep growing.

On Sat, Nov 15, 2014 at 7:47 AM, James Derieg <ja...@uplynk.com>
wrote:

> Hi everyone,
> I'm hoping someone can help me with a weird issue on Cassandra 2.1.
> The sstables on my cluster keep growing to a huge number when I run a
> nodetool repair.  On the attached graph, I ran a manual 'nodetool compact'
> on each node in the cluster, which brought them back down to a low number
> of sstables.  Then I immediately ran a nodetool repair, and the sstables
> jumped back up.  Has anyone seen this behavior?  Is this expected? I have
> some 2.0 clusters in the same environment, and they don't do this.
> Thanks in advance for your help.
> ᐧ
>