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  1. Couchbase Server
  2. MB-44522

cbindexperf support for random scans

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    • Task
    • Status: Open
    • Major
    • Resolution: Unresolved
    • Cheshire-Cat
    • Neo.next
    • secondary-index
    • CC
    • 1

    Description

      Currently cbindexperf uses a paremeter called RandomKeyLen that is supposed to be generating bulk random scans on the indexer by modifying the Low parameter in the cbindexperf config file. but from recent runs on PLASMADGM , we have seen that this is actually not supported by cbindexperf. 

      Requesting the dev team to add support for random scans so that, we can run plasma compression tests and see the impact of compression better on showfast.

      Run using RandomKeyLen : http://perf.jenkins.couchbase.com/view/GSI/job/secondary-plasma-dgm-dev/121/consoleFull  

       

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          jliang John Liang added a comment -

          Why this is assigned to Akhil Mundroy?

          jliang John Liang added a comment - Why this is assigned to Akhil Mundroy ?

          During some runs for plasma compression, Akhil Mundroy noticed that the rcache hit ratios were high and random scans were not happening as expected (which are needed to perf test plasma compression) , so it was assigned to him to verify if cbindexperf is randomizing the scans . 

          prajwal.kirankumar Prajwal‌ Kiran Kumar‌ (Inactive) added a comment - During some runs for plasma compression, Akhil Mundroy  noticed that the rcache hit ratios were high and random scans were not happening as expected (which are needed to perf test plasma compression) , so it was assigned to him to verify if cbindexperf is randomizing the scans . 

          People

            amit.kulkarni Amit Kulkarni
            prajwal.kirankumar Prajwal‌ Kiran Kumar‌ (Inactive)
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              Updated:

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