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From "Aleksey Yeschenko (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CASSANDRA-6614) 2 hours loop flushing+compacting system/{schema_keyspaces,schema_columnfamilies,schema_columns} when upgrading
Date Wed, 11 Nov 2015 16:49:11 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-6614?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aleksey Yeschenko resolved CASSANDRA-6614.
------------------------------------------
       Resolution: Cannot Reproduce
    Reproduced In: 1.2.13, 1.2.12  (was: 1.2.12, 1.2.13)

> 2 hours loop flushing+compacting system/{schema_keyspaces,schema_columnfamilies,schema_columns}
when upgrading
> --------------------------------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-6614
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6614
>             Project: Cassandra
>          Issue Type: Bug
>         Environment: ubuntu 12.04
>            Reporter: Cyril Scetbon
>            Assignee: Ryan McGuire
>
> It happens when we upgrade one node to 1.2.13 on a 1.2.2 cluster 
> see http://pastebin.com/YZKUQLXz
> If I grep for only InternalResponseStage logs I get http://pastebin.com/htnXZCiT which
always displays same account of ops and serialized/live bytes per column family.
> When I upgrade one node from 1.2.2 to 1.2.13, for 2h I get the previous messages with
a raise of CPU (as it flushes and compacts continually) on all nodes http://picpaste.com/pics/Screen_Shot_2014-01-24_at_09.18.50-ggcCDVqd.1390587562.png
> After that, everything is fine and I can upgrade other nodes without any raise of cpus
load. when I start the upgrade, the more nodes I upgrade at the same time (at the beginning),
the higher the cpu load is http://picpaste.com/pics/Screen_Shot_2014-01-23_at_17.45.56-I3fdEQ2T.1390587597.png



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