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Stefan Egli commented on OAK-2682: ---------------------------------- PS: I'll commit this AUG-03 in order for this to get into 1.3.4 and was hoping to get some comments till then. > Introduce time difference detection for DocumentNodeStore > --------------------------------------------------------- > > Key: OAK-2682 > URL: https://issues.apache.org/jira/browse/OAK-2682 > Project: Jackrabbit Oak > Issue Type: Improvement > Components: core, mongomk > Reporter: Stefan Egli > Assignee: Stefan Egli > Labels: resilience > Fix For: 1.3.4 > > Attachments: OAK-2682.patch > > > Currently the lease mechanism in DocumentNodeStore/mongoMk is based on the > assumption that the clocks are in perfect sync between all nodes of the > cluster. The lease is valid for 60sec with a timeout of 30sec. If clocks are > off by too much, and background operations happen to take couple seconds, you > run the risk of timing out a lease. So introducing a check which WARNs if the > clocks in a cluster are off by too much (1st threshold, eg 5sec?) would help > increase awareness. Further drastic measure could be to prevent a startup of > Oak at all if the difference is for example higher than a 2nd threshold > (optional I guess, but could be 20sec?). -- This message was sent by Atlassian JIRA (v6.3.4#6332)