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  1. Hadoop YARN
  2. YARN-6738

LevelDBCacheTimelineStore should reuse ObjectMapper instances

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    • Hadoop Flags:
      Reviewed

      Description

      Using TezUI sometimes times out...and the cause of it was that the query was quite large; and the leveldb handler seems like recreates the ObjectMapper for every read - this is unfortunate; since the ObjectMapper have to rescan the class annotations which may take some time.

      Keeping the objectmapper reduces the ATS call time from 17 seconds to 3 seconds for me...which was enough to get my tez-ui working again

        Attachments

        1. YARN-6738.2.patch
          1 kB
          Zoltan Haindrich
        2. YARN-6738.1.patch
          1 kB
          Zoltan Haindrich
        3. Screen Shot 2017-06-23 at 2.43.06 PM.png
          83 kB
          Zoltan Haindrich

          Activity

            People

            • Assignee:
              kgyrtkirk Zoltan Haindrich
              Reporter:
              kgyrtkirk Zoltan Haindrich
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              • Created:
                Updated:
                Resolved: