add defensive code for dealing with loadbalancer concurrency tracking #4951
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| { | ||
| case Failure(e) => | ||
| logging.error(this, s"Failed to process message for topic $topic : $e (stack trace included)") | ||
| e.printStackTrace() |
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printing the stack this way excludes it from the logger formatting - is that intended?
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not intentional - can you refer me to an example of better formatting for stack trace?
Thanks!
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Isn't it already part of the log line above anyway? I guess the broader question is: Why is the stack trace even needed here?
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Now it is, and I forgot to remove the e.printStackTrace() when I changed the log line to include it... 😔 fixing that...
| { | ||
| case Failure(e) => | ||
| logging.error(this, s"Failed to process message for topic $topic : $e (stack trace included)") | ||
| e.printStackTrace() |
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Isn't it already part of the log line above anyway? I guess the broader question is: Why is the stack trace even needed here?
common/scala/src/main/scala/org/apache/openwhisk/common/NestedSemaphore.scala
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…Semaphore.scala Co-authored-by: Markus Thömmes <markusthoemmes@me.com>
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| @@ -213,7 +214,13 @@ class MessageFeed(description: String, | |||
| outstandingMessages = outstandingMessages.tail | |||
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| if (logHandoff) logging.debug(this, s"processing $topic[$partition][$offset] ($occupancy/$handlerCapacity)") | |||
| handler(bytes) | |||
| handler(bytes).andThen { | |||
| { | |||
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Are the inner braces needed?
Defensive code for concurrency tracking in sharding loadbalancer.
Description
We saw some cases where controller ack processing was incomplete for some activations, which turned out to be:
This PR does 2 things:
This was not caught in tests due to the multi-controller cluster state changes, plus concurrency, required to reproduce the symptom.
Related issue and scope
My changes affect the following components
Types of changes
Checklist: