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From "Eric Yang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CHUKWA-523) Reload collectors doesn't work
Date Sun, 17 Oct 2010 21:37:23 GMT

    [ https://issues.apache.org/jira/browse/CHUKWA-523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12921903#action_12921903
] 

Eric Yang commented on CHUKWA-523:
----------------------------------

It looks like the reload command has been send through AgentControlSocketListener -> HttpConnector,
but ChukwaHttpSender is stuck on the original list.  The maximum retries is very large in
reliablySend by default (144000 Retries).  When ChukwaHttpSender reaches maximum retry count
with the original list, it will throw IOException("no collectors") to HttpConnector.  HttpConnector
will cause agent to shutdown due to no collector to try.  The updated collector list is never
really deployed to ChukwaHttpSender.

Collector list change should be notifying ChukwaHttpSender as soon as reloadConfiguration
is called.


> Reload collectors doesn't work
> ------------------------------
>
>                 Key: CHUKWA-523
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-523
>             Project: Chukwa
>          Issue Type: Bug
>          Components: data collection
>    Affects Versions: 0.4.0
>         Environment: Java 6, Mac OS X 10.6
>            Reporter: Eric Yang
>
> 1)      Start the agent with some "X" collectors.
> 2)      Update the conf/collectors file with "Y" collector entry and removing "X" collector
entry.
> 3)      Doing telnet to port 9093
> 4)      Firing command "reloadcollectors".
>  
> After reloading the collectors, agent responses as "OK reloadCollectors done". But agents
logs shows trying to connect to old collector "X" and does not connect to new collector.

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