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From "Jeremy Hanna (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-3176) Disabling hinted handoff is currently a noop
Date Sat, 10 Sep 2011 23:55:08 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-3176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13102182#comment-13102182
] 

Jeremy Hanna commented on CASSANDRA-3176:
-----------------------------------------

Sounds like
1) the logging happens even when it's disabled.
2) I double checked in the StorageProxy.HintedHandoffEnabled and it is set to false
3) there were probably some residual hints that were never delivered before disabling HH.

> Disabling hinted handoff is currently a noop
> --------------------------------------------
>
>                 Key: CASSANDRA-3176
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3176
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 0.8.4
>            Reporter: Jeremy Hanna
>
> In order to test a theory, we tried to disable hinted handoff on our cluster.  We updated
all of the yaml files and then restarted all the nodes in our cluster.  However we continue
to get messages such as this in the logs after restarting:
> {quote}
> INFO [HintedHandoff:1] 2011-09-10 22:41:40,813 HintedHandOffManager.java (line 323) Started
hinted handoff for endpoint /10.1.2.3
> INFO [HintedHandoff:1] 2011-09-10 22:41:40,813 HintedHandOffManager.java (line 379) Finished
hinted handoff of 0 rows to endpoint /10.1.2.3
> INFO [HintedHandoff:1] 2011-09-10 22:41:45,025 HintedHandOffManager.java (line 323) Started
hinted handoff for endpoint /10.2.3.4
> INFO [HintedHandoff:1] 2011-09-10 22:41:45,026 HintedHandOffManager.java (line 379) Finished
hinted handoff of 0 rows to endpoint /10.2.3.4
> INFO [HintedHandoff:1] 2011-09-10 22:42:10,017 HintedHandOffManager.java (line 323) Started
hinted handoff for endpoint /10.3.4.5
> INFO [HintedHandoff:1] 2011-09-10 22:42:10,017 HintedHandOffManager.java (line 379) Finished
hinted handoff of 0 rows to endpoint /10.3.4.5
> {quote}
> Also looking at the System.HintsColumnFamily in jmx there is activity there such as pending
tasks that come and go.

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