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  1. HBase
  2. HBASE-2480

Smarter load-balancing

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Won't Fix
    • None
    • 0.90.0
    • None
    • None

    Description

      Balancer is really basic; it just looks at counts of regions at the moment. It also as it currently works has loads of issues (See the linked issues) including a lack of testibility. This issue acts as the umbrella issue to collect all balancer improvements under.

      Attachments

        1. breakout_loadbalancer.txt
          19 kB
          Michael Stack

        Issue Links

          incorporates

          Bug - A problem which impairs or prevents the functions of the product. HBASE-1419 Assignment and balance need to coordinate; assigner gives out up to 10 regions at a time unbalancing a balanced cluster making for churn, etc.

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. HBASE-1676 load balancing on a large cluster doesn't work very well

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. HBASE-1909 Balancer assigns to most loaded server when assigning a single region

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. HBASE-2240 Balancer should not reassign (because of overloading) a region that was just opened

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed
          relates to

          Sub-task - The sub-task of the issue HBASE-2699 Reimplement load balancing to be a background process and to not use heartbeats

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. HBASE-2510 [performance] make hbase splits run even faster still

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. HBASE-2802 Stop daughter regions both being assigned same server

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. HBASE-3373 Allow regions to be load-balanced by table

          • Major - Major loss of function.
          • Closed

          Activity

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              Unassigned Unassigned
              stack Michael Stack
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              Dates

                Created:
                Updated:
                Resolved: