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https://issues.apache.org/jira/browse/UIMA-1454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12738992#action_12738992
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Jerry Cwiklik commented on UIMA-1454:
-------------------------------------
Fixed the code to silence connection failure exceptions. Instead of a stack
trace a message is logged indicating a connection problem. Also added a
DoNotProcess list and a dedicated cleanup thread that removes entries from the
list after 30 minutes.
> Stale requests are processed and subsequently labeled as exceptions
> -------------------------------------------------------------------
>
> Key: UIMA-1454
> URL: https://issues.apache.org/jira/browse/UIMA-1454
> Project: UIMA
> Issue Type: Bug
> Components: Async Scaleout
> Reporter: Eddie Epstein
>
> When a client submits one or more requests to a service and then terminates
> before the service has a chance to reply, the service will still process the
> requests
> and then fail trying to send the reply with a long stack trace.
> There are two problems here: processing a request which cannot be replied to,
> and throwing an exception for expected behavior.
> The following is suggested:
> 1. catch these exceptions and log a single line at INFO level that a reply
> could
> not be sent to {identified reply queue name}
> 2. put this reply queue on a "do not process" list to be checked before
> processing
> new requests.
> 3. clean up the "do not process" list based on time or max number of entries.
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