On 10/6/2013 19:15, Shawn Heisey wrote:
On 6/10/2013 10:18 AM, Michael Della Bitta wrote:
Hi all,
first post to this really useful list.
My experience with Solr (4.0) started just a few months ago.
I had no prior exposure to Solr 3.x.
That was my flip way of saying that "Optimize" is a highly optional
procedure that should not be undertaken under ordinary circumstances.
>> [...]
There's even a JIRA to remove it from Solr:
https://issues.apache.org/jira/browse/SOLR-3141
I really liked the LHC page. :) Michael is correct here. If you look
through that JIRA, you'll see that there are still very valid reasons
for doing an optimize, but the age-old reason of "improving performance"
is not one of them.
That is interesting, because I am not running any manual optimize,
but I can clearly see that Solr master is doing something to the index
that periodically brings it down about 80% in size.
After that, the query response time is much lower, and more
importantly, has a much lower variance too.
I assumed this was an on-demand automatic optimize,
but maybe it wasn't.
--
Cosimo
