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From "Matthew Clarke (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (NIFI-483) Automatically elect a new primary node to allow rolling restarts
Date Mon, 01 Feb 2016 18:25:39 GMT

    [ https://issues.apache.org/jira/browse/NIFI-483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15126722#comment-15126722
] 

Matthew Clarke commented on NIFI-483:
-------------------------------------

Could we add another scheduling strategy to solve this problem?  On Primary Node (CRON)? 
The Cron strategy is not affected by restarts.

> Automatically elect a new primary node to allow rolling restarts
> ----------------------------------------------------------------
>
>                 Key: NIFI-483
>                 URL: https://issues.apache.org/jira/browse/NIFI-483
>             Project: Apache NiFi
>          Issue Type: Sub-task
>            Reporter: Ricky Saltzer
>
> In a clustered environment, if you restart the primary node's NiFi instance, all of the
processors scheduled on "Primary Node" will automatically be re-executed on start up. This
is a problem if you require a processor to only execute once per day, for example.  
> To get around this, you must manually promote a different node to primary before restarting
it. I think it would be a worthwhile feature to have the primary node automatically elect
another node primary if it's being restarted. 



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