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  1. Couchbase Server
  2. MB-21931

Incremental index building with FDB increases by around 20%-45% in spock

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    Description

      Observed that in weekly crank for 4.7.0-1400 build incremental index build with FDB is significantly(20%-45%) increased.

      Showfast results- http://showfast.sc.couchbase.com/#/timeline/Linux/secondary/incremental_fdb

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            abhinav Abhinav Dangeti added a comment - - edited ForestDB diff (between 1370 & 1400): https://github.com/couchbase/forestdb/compare/7bf56135f59a67cc399edc94f3fd766496c35517...c87f6c8e50036b34b621fb453eb593096e2c6681

            Hey Mahesh Mandhare, I looked through the diff set of changes and couldn't spot anything that could've obviously introduced this regression. Could you give this toy build a run to see if there is any regression with it:

            http://server.jenkins.couchbase.com/job/watson-toy/912/artifact/couchbase-server-enterprise-4.7.0-10000-centos7.x86_64.rpm
            

            abhinav Abhinav Dangeti added a comment - Hey Mahesh Mandhare , I looked through the diff set of changes and couldn't spot anything that could've obviously introduced this regression. Could you give this toy build a run to see if there is any regression with it: http://server.jenkins.couchbase.com/job/watson-toy/912/artifact/couchbase-server-enterprise-4.7.0-10000-centos7.x86_64.rpm

            Hi Abhinav Dangeti,
            I had a run with given toy build and regression is present in toy build.
            Here is job - http://perf.jenkins.couchbase.com/job/secondary-fdb/2310

            Observed similar results on rerun on older builds, this may be due to one of change in workload generator to minimise duplicates in load phase.
            I will perform rebaseline of these tests and update this issue, please hold further investigations on this issue until then.

            Thanks,
            Mahesh

            mahesh.mandhare Mahesh Mandhare (Inactive) added a comment - Hi Abhinav Dangeti , I had a run with given toy build and regression is present in toy build. Here is job - http://perf.jenkins.couchbase.com/job/secondary-fdb/2310 Observed similar results on rerun on older builds, this may be due to one of change in workload generator to minimise duplicates in load phase. I will perform rebaseline of these tests and update this issue, please hold further investigations on this issue until then. Thanks, Mahesh

            Performed rebaseline of initial/incremental tests for fdb in 2i and did not observed this regression- http://showfast.sc.couchbase.com/#/timeline/Linux/secondary/incremental_fdb

            mahesh.mandhare Mahesh Mandhare (Inactive) added a comment - Performed rebaseline of initial/incremental tests for fdb in 2i and did not observed this regression- http://showfast.sc.couchbase.com/#/timeline/Linux/secondary/incremental_fdb

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              mahesh.mandhare Mahesh Mandhare (Inactive)
              mahesh.mandhare Mahesh Mandhare (Inactive)
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