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From Shawn Heisey <>
Subject Re: Overall large size in Solr across collections
Date Tue, 19 Apr 2016 17:41:16 GMT
On 4/19/2016 9:28 AM, Zheng Lin Edwin Yeo wrote:
> Currently, the searching performance is still doing fine, but it is the
> indexing that is slowing down. Not sure if increasing the RAM, or changing
> to a SSD hard disk will help with the indexing speed?

You need to figure out exactly what is slow -- is it actual indexing,
merging segments, or is it commits?

If it's commits, then the work will be to speed those up.  Reducing or
eliminating autowarming is one thing you can do.  Putting the index on
SSD might also help.

Slow merging might be improved with SSD storage.

If it's actual indexing speed (independent of merging and commits)
that's slow, then there are a lot of potential reasons.  You'll need to
nail down exactly where the bottleneck is.  I'm not even sure what
questions to ask on the road to figuring this out.


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