Robert Kanter created OOZIE-1916: ------------------------------------ Summary: Use Curator leader latch instead of checking the order of Oozie servers Key: OOZIE-1916 URL: https://issues.apache.org/jira/browse/OOZIE-1916 Project: Oozie Issue Type: Improvement Components: HA Affects Versions: trunk Reporter: Robert Kanter Priority: Minor
We currently have a few tasks (e.g. Purging old jobs) that we only want to do in one Oozie server. We currently simply check which Oozie server is first in ZooKeeper's list of servers (i.e. the order they connected). We haven't seen any problems with this, but it might be a good idea to replace this with Curator's leader-latch, which sounds more robust. Once this is done, we also no longer need the internal leader-latch used by the ChildReaper in OOZIE-1906. http://curator.apache.org/curator-recipes/leader-latch.html -- This message was sent by Atlassian JIRA (v6.2#6252)