Jay Bae created CURATOR-76:
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Summary: Adding leader selection and TTL feature in ChildReaper
recipe
Key: CURATOR-76
URL: https://issues.apache.org/jira/browse/CURATOR-76
Project: Apache Curator
Issue Type: Bug
Components: Recipes
Reporter: Jay Bae
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.
Also, it wouldn't be enough checking simply whether the zknode is empty. It
would be better if ChildReaper is checking the node is empty and it's not
modified for the amount of time.
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