Uploaded image for project: 'HBase'
  1. HBase
  2. HBASE-25832 Performance improvements for StochasticLoadBalancer
  3. HBASE-25894

Improve the performance for region load and region count related cost functions

    XMLWordPrintableJSON

Details

    • Reviewed
    • Hide
      In CostFromRegionLoadFunction, now we will only recompute the cost for a given region server in regionMoved function, instead of computing all the costs every time.
      Introduced a DoubleArrayCost for better abstraction, and also try to only compute the final cost on demand as the computation is also a bit expensive.
      Show
      In CostFromRegionLoadFunction, now we will only recompute the cost for a given region server in regionMoved function, instead of computing all the costs every time. Introduced a DoubleArrayCost for better abstraction, and also try to only compute the final cost on demand as the computation is also a bit expensive.

    Description

      For a large cluster, we have a lot of regions, so computing the whole cost will be expensive. We should try to remove the unnecessary calculation as much as possible.

      Attachments

        Issue Links

          is blocked by

          Sub-task - The sub-task of the issue HBASE-25873 Refactor and cleanup the code for CostFunction

          • Major - Major loss of function.
          • Resolved
          relates to

          Improvement - An improvement or enhancement to an existing feature or task. HBASE-25995 Change the method name for DoubleArrayCost.setCosts

          • Major - Major loss of function.
          • Resolved
          links to

          Web Link GitHub Pull Request #3276

          Activity

            People

              zhangduo Duo Zhang
              zhangduo Duo Zhang
              Votes:
              0 Vote for this issue
              Watchers:
              8 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: