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  1. HBase
  2. HBASE-3551

Loaded hfile indexes occupy a good chunk of heap; look into shrinking the amount used

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Won't Fix
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: None
    • Labels:
      None

      Description

      I hung with a user Marc and we were looking over configs and his cluster profile up on ec2. One thing we noticed was that his 100+ 1G regions of two families had ~2.5G of heap resident. We did a bit of math and couldn't get to 2.5G so that needs looking into. Even still, 2.5G is a bunch of heap to give over to indices (He actually OOME'd when he had his RS heap set to just 3G; we shouldn't OOME, we should just run slower). It sounds like he needs the indices loaded but still, for some cases we should drop indices for unaccessed files.

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            • Assignee:
              Unassigned
              Reporter:
              stack stack
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                Updated:
                Resolved: