[jira] [Created] (OAK-5528) leaseUpdateThread might be blocked by leaseUpdateCheck

["Julian Reschke (JIRA)" <ji...@apache.org>]

Julian Reschke created OAK-5528:
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             Summary: leaseUpdateThread might be blocked by leaseUpdateCheck
                 Key: OAK-5528
                 URL: https://issues.apache.org/jira/browse/OAK-5528
             Project: Jackrabbit Oak
          Issue Type: Bug
          Components: core
    Affects Versions: 1.4, 1.5.14
            Reporter: Stefan Eissing
            Assignee: Julian Reschke
             Fix For: 1.6
         Attachments: OAK-5446.diff, OAK-5446-jr.diff, OAK-5446.testcase, OAK-5446.testcase.v3

Fighting with cluster nodes losing their lease and shutting down oak-core in a cloud environment. For reasons unknown at this point in time, the whole process seems to skip about two minutes of real time.

This is a situation from which oak currently does not recover. Code analysis shows that {{ClusterNodeInfo}} is handed the {{LeaseCheckDocumentStoreWrapper}} instance to use as store. This is fatal since any action the {{renewLease()}} tries to do will first invoke the {{performLeaseCheck()}}. The lease check will, when the {{FailureMargin}} is reached, _stall the renewLease() thread_ for 5 retry attempts and then declare the lease to be lost.

The {{ClusterNodeInfo}} should instead be using the "real" {{DocumentStore}}, not the wrapped one, IMO.



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