Brian Geffon created TS-1674:
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Summary: TSStatInDecrement is broken
Key: TS-1674
URL: https://issues.apache.org/jira/browse/TS-1674
Project: Traffic Server
Issue Type: Bug
Components: TS API
Reporter: Brian Geffon
ATS keeps a thread-local copy of the stat value and aggregates it periodically
and on demand when stats are being collected. However the decrement function
doesn't let a value go negative. So in a thread that has not incremented this
stat previously, the decrement call "fails". This negative value check is
logically flawed as it doesn't account for the per-thread distribution of the
stats.
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