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From "Davide Giannella (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OAK-3054) IndexStatsMBean should provide some details if the async indexing is failing
Date Wed, 08 Jul 2015 09:06:04 GMT

    [ https://issues.apache.org/jira/browse/OAK-3054?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14618259#comment-14618259
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Davide Giannella commented on OAK-3054:
---------------------------------------

In order to "debug" such situations would help if the MBean (or any other) could expose the
status of the properties under the {{/:async}} node and the list of all available checkpoints.

> IndexStatsMBean should provide some details if the async indexing is failing
> ----------------------------------------------------------------------------
>
>                 Key: OAK-3054
>                 URL: https://issues.apache.org/jira/browse/OAK-3054
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: query
>            Reporter: Chetan Mehrotra
>            Priority: Minor
>             Fix For: 1.2.3, 1.3.3, 1.0.17
>
>
> If the background indexing fails for some reason it logs the exception for the first
time then it logs the exception like _The index update failed ..._. After that if indexing
continues to fail then no further logging is done so as to avoid creating noise.
> This poses a problem on long running system where original exception might not be noticed
and index does not show updated result. For such cases we should expose the indexing health
as part of {{IndexStatsMBean}}. Also we can provide the last recorded exception. 
> Administrator can then check for MBean and enable debug logs for further troubleshooting



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