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From "Jeff Ferland (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-11172) Infinite loop bug adding high-level SSTableReader in compaction
Date Tue, 16 Feb 2016 17:56:18 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-11172?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15148988#comment-15148988
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Jeff Ferland commented on CASSANDRA-11172:
------------------------------------------

It's this: `INFO  [CompactionExecutor:12750] 2016-02-16 17:47:48,642  LeveledManifest.java:415
- Adding high-level (L0) SSTableReader(path='/mnt/cassandra/data/youtube/youtube_videos-2d16275b7ff93269bea0aac894e1abaa/youtube-youtube_videos-ka-104968-Data.db')
to candidates` repeating endlessly. That one's extra special this time because of the L0.
I'll look in our aggregation server and try to get value from the time when it starts.

> Infinite loop bug adding high-level SSTableReader in compaction
> ---------------------------------------------------------------
>
>                 Key: CASSANDRA-11172
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11172
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Compaction
>         Environment: DSE 4.x / Cassandra 2.1.11.969
>            Reporter: Jeff Ferland
>            Assignee: Marcus Eriksson
>
> Observed that after a large repair on LCS that sometimes the system will enter an infinite
loop with vast amounts of logs lines recording, "Adding high-level (L${LEVEL}) SSTableReader(path='${TABLE}')
to candidates"
> This results in an outage of the node and eventual crashing. The log spam quickly rotates
out possibly useful earlier debugging.



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