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https://issues.apache.org/jira/browse/CASSANDRA-7694?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14088030#comment-14088030
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Jonathan Ellis commented on CASSANDRA-7694:
-------------------------------------------

I'm not sure what's going on here, because the log in CASSANDRA-7706 clearly 
shows some interruptions being (correctly) logged at info and debug, but others 
at error.

CompactionExecutor attempts to deal with CIE as follows:

{code}
I think we have two problems.

CompactionTask assumes it will be run on a CompactionExecutor, which handles 
CIE as follows:

{code}
        // modified from DebuggableThreadPoolExecutor so that 
CompactionInterruptedExceptions are not logged
        @Override
        public void afterExecute(Runnable r, Throwable t)
        {
            super.afterExecute(r, t);

            if (t == null)
                t = DebuggableThreadPoolExecutor.extractThrowable(r);

            if (t != null)
            {
                if (t instanceof CompactionInterruptedException)
                {
                    logger.info(t.getMessage());
                    logger.debug("Full interruption stack trace:", t);
                }
                else
                {
                    DebuggableThreadPoolExecutor.handleOrLog(t);
                }
            }
        }
{code}

If [~mshuler] can reproduce with the split test, what does it bisect to?

> Expected Compaction Interruption is logged as ERROR
> ---------------------------------------------------
>
>                 Key: CASSANDRA-7694
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7694
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: OSX and Ubuntu 14.04
>            Reporter: Philip Thompson
>            Assignee: Marcus Eriksson
>            Priority: Minor
>             Fix For: 2.1.1
>
>         Attachments: compaction_error.log
>
>
> As seen in the attached log, occasionally a major compaction will interrupt 
> other running compactions. This is not an error and is expected behavior. 
> However this is logged at ERROR. 



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