On 07/13/2016 12:43 AM, Siraj Haider wrote:
We currently use Lucene 2.9 and to keep the indexes running faster we optimize
the indexes during night. In our application the volume of new documents coming
in is very high so most of our indexes have to merge segments during the day
too, when the document count reaches certain number. This causes tremendous
slowness on the machine the online searches suffer too to the extent that we
need to restart tomcat on those machines very frequently. Right now we are in
the process to upgrade to version 6.1.0. I have read that there is no need to
optimize in 6.1.0 but what about the segment merges, will those happen as
before in 6.1.0 too? I would like to know the best way to tackle this issue, so
please help me out.
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Regards
-Siraj
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Hi Siraj,
In 2.9 lucene, underlying index was considered one big index and
therefore there was a need to optimize (read 'merge segments') index.
But (I think) since 3.5, the orientation is towards per segment
searching. Therefore as such 'no need' to merge segments. But you can
still force it in cases like based on number of documents in a segment.
- Best
Parit
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