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https://issues.apache.org/jira/browse/CASSANDRA-14900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16727961#comment-16727961
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Alex Petrov commented on CASSANDRA-14900:
-----------------------------------------
In 4.0 we do not use exceptions for control-flow in this case anymore, and I do
agree it's a good idea to avoid logging a stack trace here. But we do a
[slightly different thing
there|https://github.com/apache/cassandra/blob/e645b9172c5d50fc2af407de724e46121edfe109/src/java/org/apache/cassandra/service/reads/AbstractReadExecutor.java#L390],
can you explain motivation for not keeping it the same across versions, since
[we do have tracing in
3.0|https://github.com/Gerrrr/cassandra/blob/14900-3.0/src/java/org/apache/cassandra/tracing/Tracing.java]?
> DigestMismatchException log messages should be at TRACE
> -------------------------------------------------------
>
> Key: CASSANDRA-14900
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14900
> Project: Cassandra
> Issue Type: Bug
> Components: Configuration, Observability
> Reporter: Aleksandr Sorokoumov
> Assignee: Aleksandr Sorokoumov
> Priority: Minor
> Fix For: 3.0.x, 3.11.x
>
>
> DigestMismatchException log messages should probably be at TRACE. These log
> messages about normal digest mismatches that include scary stacktraces:
> {noformat}
> DEBUG [ReadRepairStage:40] 2017-10-24 19:45:50,349 ReadCallback.java:242 -
> Digest mismatch:
> org.apache.cassandra.service.DigestMismatchException: Mismatch for key
> DecoratedKey(-786225366477494582,
> 31302e33322e37382e31332d6765744469736b5574696c50657263656e742d736463)
> (943070f62d72259e3c25be0c6f76e489 vs f4c7c7675c803e0028992e11e0bbc5a0)
> at
> org.apache.cassandra.service.DigestResolver.compareResponses(DigestResolver.java:92)
> ~[cassandra-all-3.11.0.1855.jar:3.11.0.1855]
> at
> org.apache.cassandra.service.ReadCallback$AsyncRepairRunner.run(ReadCallback.java:233)
> ~[cassandra-all-3.11.0.1855.jar:3.11.0.1855]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> [na:1.8.0_121]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> [na:1.8.0_121]
> at
> org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:81)
> [cassandra-all-3.11.0.1855.jar:3.11.0.1855]
> at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_121]
> {noformat}
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