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From "Julian Reschke (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OAK-3492) reduce DocumentDiscoveryLiteService hasBacklog WARNs
Date Thu, 11 Apr 2019 11:38:00 GMT

    [ https://issues.apache.org/jira/browse/OAK-3492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16815344#comment-16815344
] 

Julian Reschke commented on OAK-3492:
-------------------------------------

trunk: (1.3.8) [r1707508|http://svn.apache.org/r1707508]

> 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
>            Priority: Major
>             Fix For: 1.3.8, 1.4
>
>
> 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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