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From "Will Hayworth (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-11172) Infinite loop bug adding high-level SSTableReader in compaction
Date Wed, 17 Feb 2016 08:07:18 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-11172?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Will Hayworth updated CASSANDRA-11172:
--------------------------------------
    Attachment: trapped_in_compaction.txt
                trapped_in_compaction_mixed.txt
                tpstats_compaction.txt

I don't know if these are worth anything but, in case they are: {{nodetool tpstats}} before
I shut down the node and both mixed (native) and only-Java thread dumps.

> 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
>         Attachments: beep.txt, tpstats_compaction.txt, trapped_in_compaction.txt, trapped_in_compaction_mixed.txt
>
>
> 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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