Github user cammckenzie commented on a diff in the pull request:
https://github.com/apache/curator/pull/66#discussion_r24375263
--- Diff:
curator-recipes/src/main/java/org/apache/curator/framework/recipes/locks/ChildReaper.java
---
@@ -173,32 +191,40 @@ public boolean removePath(String path)
return paths.remove(PathUtils.validatePath(path));
}
- private static ScheduledExecutorService newExecutorService()
+ public static ScheduledExecutorService newExecutorService()
{
return ThreadUtils.newFixedThreadScheduledPool(2, "ChildReaper");
}
private void doWork()
{
- for ( String path : paths )
+ if (shouldDoWork())
--- End diff --
There is potential for a race condition here if leadership is lost while
attempting to do the reaping. Not sure if this is an issue or not?
I would assume that it's not really an issue as:
1.) If leadership has been lost then the connection to ZK will be lost so
the reaping won't work anyway.
2.) If the reaping fails due to 2 nodes concurrently attempting to delete /
query children, then it will just run again next time anyway.
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