Sudheer Vinukonda created TS-3767:
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Summary: More unbounded retries within read-while-writer.
Key: TS-3767
URL: https://issues.apache.org/jira/browse/TS-3767
Project: Traffic Server
Issue Type: Bug
Components: Cache
Reporter: Sudheer Vinukonda
[~zwoop] noticed the loop detection (request to self) fails with default
settings, when read-while-writer functionality is enabled. Upon further
investigation, this seems to be caused by more cases of unbounded retries
within read-while-writer (similar to TS-3622), which prevent reaching the loop
detection point (currently, done after the cache lookup state).
TS-3622 added a bound for read-while-writer in the case, where the writer lock
is available, but, the first fragment is not downloaded yet, but, there are
more cases which cause similar issues.
Discussing with [~zwoop], we think we should add bounds in all such cases with
configurable timer (duration) and configurable max number of retries.
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