Benjamin Jaton created CURATOR-391:
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Summary: PathChildrenCache missing events upon reconnection
Key: CURATOR-391
URL: https://issues.apache.org/jira/browse/CURATOR-391
Project: Apache Curator
Issue Type: Bug
Components: Recipes
Reporter: Benjamin Jaton
PathChildrenCache attempts to check for any change that occurred during a
connection loss in applyNewData():
{code:title=PathChildrenCache.java|borderStyle=solid}
else if ( previousData.getStat().getVersion() != stat.getVersion() )
{code}
The way to compare stats is erroneous. {{version}} will be reset if the node is
recreated. So the above code only works if an update has been made, but it may
miss changes that involve a delete event.
Example:
- node /tmp is just created, version=0
- connection loss
- node /tmp is deleted
- node /tmp is recreated with new data, version=0
- reconnect
- no data change event from PathChildrenCache
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