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From Erick Erickson <>
Subject Re: old searchers not closing after optimize or replication
Date Wed, 20 Apr 2011 11:56:35 GMT
Does this persist? In other words, if you just watch it for
some time, does the disk usage go back to normal?

Because it's typical that your index size will temporarily
spike after the operations you describe as new searchers
are warmed up. During that interval, both the old and new
searchers are open.

Look particularly at your warmup time in the Solr admin page,
that should give you an indication of how long it takes your
warmup to happen and give you a clue about when you should
expect the index sizes to drop again.

How often do you optimize on the master and replicate on the
slave? Because you may be getting into the runaway warmup
problem where a new searcher is opened before the last one
is autowarmed and spiraling out of control.

Hope that helps

On Wed, Apr 20, 2011 at 2:36 AM, Bernd Fehling
<> wrote:
> Hello list,
> we have the problem that old searchers often are not closing
> after optimize (on master) or replication (on slaves) and
> therefore have huge index volumes.
> Only solution so far is to stop and start solr which cleans
> up everything successfully, but this can only be a workaround.
> Is the parameter "waitSearcher=false" an option to solve this?
> Any hints what to check or to debug?
> We use Apache Solr 3.1.0 on Linux.
> Regards
> Bernd

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