[jira] [Created] (OAK-3492) reduce DocumentDiscoveryLiteService hasBacklog WARNs

["Stefan Egli (JIRA)" <ji...@apache.org>]

Stefan Egli created OAK-3492:
--------------------------------

             Summary: reduce DocumentDiscoveryLiteService hasBacklog WARNs
                 Key: OAK-3492
                 URL: https://issues.apache.org/jira/browse/OAK-3492
             Project: Jackrabbit Oak
          Issue Type: Bug
          Components: core
    Affects Versions: 1.3.7
            Reporter: Stefan Egli
            Assignee: Stefan Egli
             Fix For: 1.3.8


With DocumentDiscoveryLiteService in 1.3.7 the following WARN has been noticed:
{code}
07.10.2015 06:38:16.575 *TRACE* [DocumentDiscoveryLiteService-BackgroundWorker-[4]] org.apache.jackrabbit.oak.plugins.document.DocumentDiscoveryLiteService hasBacklog: start. clusterNodeId: 1
07.10.2015 06:38:16.575 *TRACE* [DocumentDiscoveryLiteService-BackgroundWorker-[4]] org.apache.jackrabbit.oak.plugins.document.DocumentDiscoveryLiteService getLastKnownRevision: end. clusterNode:
 1, lastKnownRevision: r14e0c0898cc-0-1
07.10.2015 06:38:16.575 *WARN* [DocumentDiscoveryLiteService-BackgroundWorker-[4]] org.apache.jackrabbit.oak.plugins.document.DocumentDiscoveryLiteService hasBacklog: node has lastWrittenRootRev=
null
{code}
This happens every 5sec. While the warning is somewhat legitimate as it cannot determine the backlog of a not-active instance - it is spam if it occurs every 5sec. So rather than warning constantly, there should only be one warning and then a fall-back to log.debug afterwards.



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