Uploaded image for project: 'HBase'
  1. HBase
  2. HBASE-14984

Allow memcached block cache to set optimze to false

    XMLWordPrintableJSON

Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 1.2.0, 1.3.0, 2.0.0
    • 1.2.0, 1.3.0, 2.0.0
    • BlockCache
    • None
    • Reviewed
    • Hide
      Setting hbase.cache.memcached.spy.optimze to true will allow the spy memcached client to try and optimize for the number of requests outstanding. This can increase throughput but can also increase variance for request times.

      Setting it to true will help when round trip times are longer.
      Setting it to false ( the default ) will help ensure a more even distribution of response times.
      Show
      Setting hbase.cache.memcached.spy.optimze to true will allow the spy memcached client to try and optimize for the number of requests outstanding. This can increase throughput but can also increase variance for request times. Setting it to true will help when round trip times are longer. Setting it to false ( the default ) will help ensure a more even distribution of response times.

    Description

      In order to keep latency consistent it might not be good to allow the spy memcached client to optimize.

      Attachments

        1. HBASE-14984.patch
          3 kB
          Elliott Neil Clark

        Activity

          People

            eclark Elliott Neil Clark
            eclark Elliott Neil Clark
            Votes:
            0 Vote for this issue
            Watchers:
            4 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved: