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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

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 3.0.0-alpha-1
    • scan, tracing
    • None
    • 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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            zhangduo Duo Zhang
            zhangduo Duo Zhang
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