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https://issues.apache.org/jira/browse/CASSANDRA-10829?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15098337#comment-15098337
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Carl Yeksigian commented on CASSANDRA-10829:
--------------------------------------------
+1
> cleanup + repair generates a lot of logs
> ----------------------------------------
>
> Key: CASSANDRA-10829
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10829
> Project: Cassandra
> Issue Type: Bug
> Environment: 5 nodes on Cassandra 2.1.11 (on Debian)
> Reporter: Fabien Rousseau
> Assignee: Marcus Eriksson
> Fix For: 2.1.x
>
>
> One of our node generates a lot of cassandra logs (int the 10 MB/s) and CPU
> usage has increased (by a factor 2-3).
> This was most probably triggered by a "nodetool snapshot" while a cleanup was
> already running on this node.
> An example of those logs:
> 2015-12-08 09:15:17,794 INFO
> [ValidationExecutor:689]ColumnFamilyStore.java:1923 Spinning trying to
> capture released readers [...]
> 2015-12-08 09:15:17,794 INFO
> [ValidationExecutor:689]ColumnFamilyStore.java:1924 Spinning trying to
> capture all readers [...]
> 2015-12-08 09:15:17,795 INFO
> [ValidationExecutor:689]ColumnFamilyStore.java:1923 Spinning trying to
> capture released readers [...]
> 2015-12-08 09:15:17,795 INFO
> [ValidationExecutor:689]ColumnFamilyStore.java:1924 Spinning trying to
> capture all readers [...]
> (I removed SSTableReader information because it's rather long... I can share
> it privately if needed)
> Note that the date has not been changed (only 1ms between logs)
> It should not generate that gigantic amount of logs :)
> This is probably linked to:
> https://issues.apache.org/jira/browse/CASSANDRA-9637
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