Varun Thacker created SOLR-12616:
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Summary: Track down performance slowdowns with ExportWriter
Key: SOLR-12616
URL: https://issues.apache.org/jira/browse/SOLR-12616
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Varun Thacker
Just to be clear for users glancing through this Jira : The performance
slowdown is currently on an unreleased version of Solr so no versions are
affected by this.
While doing some benchmarking for SOLR-12572 , I compared the export writers
performance against Solr 7.4 and there seems to be some slowdowns that have
been introduced. Most likely this is because of SOLR-11598
In an 1 shard 1 replica collection with 25M docs. We issue the following query
{code:java}
/export?q=*:*&sort=id desc&fl=id{code}
Solr 7.4 took 8:10 , 8:20 and 8:22 in the 3 runs that I did
Master took 10:46
Amrit's done some more benchmarking so he can fill in with some more numbers
here.
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