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From "Stefania (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-12100) Compactions are stuck after TRUNCATE
Date Fri, 05 Aug 2016 01:47:20 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-12100?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Stefania updated CASSANDRA-12100:
---------------------------------
    Status: Patch Available  (was: In Progress)

I could not reproduce the problem despite the multiplexed run. There were several compaction
interrupted exceptions, but none thrown at the line that would have caused the compaction
stats to get stuck.

Nonetheless I think we should commit this patch anyway since it clearly fixes a problem. 

It is trivial and it up-merges without conflicts, so I did not run CI on 3.9 and trunk, but
I can do so if required.

> Compactions are stuck after TRUNCATE
> ------------------------------------
>
>                 Key: CASSANDRA-12100
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12100
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Compaction
>            Reporter: Stefano Ortolani
>            Assignee: Stefania
>             Fix For: 3.0.x
>
>         Attachments: node3_jstack.log
>
>
> Hi,
> since the upgrade to C* 3.0.7 I see compaction tasks getting stuck when truncating the
column family. I verified this on all nodes of the cluster.
> Pending compactions seem to disappear after restarting the node.
> {noformat}
> root@node10:~# nodetool -h localhost compactionstats
> pending tasks: 6
>                                      id   compaction type              keyspace     
          table   completed      total    unit   progress
>    24e1ad30-3cac-11e6-870d-5de740693258        Compaction   		     schema		         table_1
          0   57558382   bytes      0.00%
>    2be2e3b0-3cac-11e6-870d-5de740693258        Compaction   		     schema		         table_2
          0   65063705   bytes      0.00%
>    54de38f0-3cac-11e6-870d-5de740693258        Compaction   		     schema		         table_3
          0     187031   bytes      0.00%
>    31926ce0-3cac-11e6-870d-5de740693258        Compaction   		     schema		         table_4
          0   42951119   bytes      0.00%
>    3911ad00-3cac-11e6-870d-5de740693258        Compaction   		     schema		         table_5
          0   25918949   bytes      0.00%
>    3e6a8ab0-3cac-11e6-870d-5de740693258        Compaction   		     schema		         table_6
          0   65466210   bytes      0.00%
> Active compaction remaining time :   0h00m15s
> {noformat}



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