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https://issues.apache.org/jira/browse/CURATOR-76?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13954802#comment-13954802
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Jordan Zimmerman commented on CURATOR-76:
-----------------------------------------
This change makes the leader a requirement. It would be better (considering
backward compatibility) to make the leader optional. Please supply a patch with
an optional leader.
> Adding leader selection ChildReaper recipe
> ------------------------------------------
>
> Key: CURATOR-76
> URL: https://issues.apache.org/jira/browse/CURATOR-76
> Project: Apache Curator
> Issue Type: Improvement
> Components: Recipes
> Reporter: Jay Bae
> Attachments: CURATOR-76.patch
>
>
> We are having serious data corruption issue when we are rolling restart of
> zookeeper servers due to one application which is using ChildReaper recipe. I
> am not sure its root cause but my theory is, when the multiple instances are
> running ChildReaper recipe, they would conflict each other among checking
> exist and deleting paths. This conflict can cause data corruption. We
> observed all servers died due to corrupted data and we had to manually copy
> log/snapshot data and restart them.
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