[jira] [Commented] (SLING-2979) Add support for running scheduled task on specific instances

["Chetan Mehrotra (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SLING-2979?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15063429#comment-15063429 ] 

Chetan Mehrotra commented on SLING-2979:
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bq. What exactly does SINGLE mean? Which node will execute the jobs then?

SINGLE for now means {{LEADER}}. Opened SLING-5387 to have a better implementation

> Add support for running scheduled task on specific instances
> ------------------------------------------------------------
>
>                 Key: SLING-2979
>                 URL: https://issues.apache.org/jira/browse/SLING-2979
>             Project: Sling
>          Issue Type: New Feature
>          Components: Commons
>            Reporter: Carsten Ziegeler
>            Assignee: Carsten Ziegeler
>             Fix For: Commons Scheduler 2.4.0
>
>
> With the new topology api we have support for leader election. In many cases scheduled tasks should only run on a single instance in a cluster. So far this can only be done by manually adding the task through the Scheduler interface but not with the whiteboard support.
> We should add a new property scheduler.leaderonly which defaults to false but can be set to true. IN this case the task is only started on the leader.



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