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  1. HBase
  2. HBASE-22120 Replace HTrace with OpenTelemetry
  3. HBASE-25723

Temporarily remove the trace support for RegionScanner.next

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    Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.0.0-alpha-1
    • Component/s: scan, tracing
    • Labels:
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    • Hadoop Flags:
      Reviewed

      Description

      Please see the test result in HBASE-25658, tracing RegionScanner.next could lead to a 6% performance downgrading even if we do not enable tracing.

      I think the problem here is that, a single scan rpc call could lead to a bunch of RegionScanner.next. So if trace is enabled, there will be much more performance impact as we need to store a bunch of spans(maybe this could be limited by some parameters?).

      Anyway, let's remove it for now to land the basic trace framework first. Can improve later.

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              • Assignee:
                zhangduo Duo Zhang
                Reporter:
                zhangduo Duo Zhang
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                • Created:
                  Updated:
                  Resolved: