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From "Alex Parvulescu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (OAK-3057) Simplify debugging conflict related errors
Date Thu, 09 Jul 2015 10:53:04 GMT

    [ https://issues.apache.org/jira/browse/OAK-3057?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14620321#comment-14620321
] 

Alex Parvulescu commented on OAK-3057:
--------------------------------------

merged to 1.2 with http://svn.apache.org/r1690049 & http://svn.apache.org/r1690058

> Simplify debugging conflict related errors
> ------------------------------------------
>
>                 Key: OAK-3057
>                 URL: https://issues.apache.org/jira/browse/OAK-3057
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: core
>            Reporter: Chetan Mehrotra
>             Fix For: 1.3.3
>
>         Attachments: OAK-3057-v0.patch, OAK-3057-v1.patch, OAK-3057-v2.patch
>
>
> Many a times we see conflict exception in the logs like below. Looking at the stacktrace
its hard to reason out what was the conflict and hence harder to debug such issues. Oak should
provide more details as part of exception message itself to simplify debugging such issues.

> Note that such issues are intermittent and might happen in background processing logic.
So its required that all details should be made part of exception message itself as it would
not be possible to turn on any trace logging to get more details given the intermittent nature
of such issues
> {noformat}
> Caused by: org.apache.jackrabbit.oak.api.CommitFailedException: OakState0001: Unresolved
conflicts in /content/dam/news/images/2015/06/27/blue-sky.jpg
> 	at org.apache.jackrabbit.oak.plugins.commit.ConflictValidator.failOnMergeConflict(ConflictValidator.java:84)
> 	at org.apache.jackrabbit.oak.plugins.commit.ConflictValidator.propertyAdded(ConflictValidator.java:54)
> 	at org.apache.jackrabbit.oak.spi.commit.CompositeEditor.propertyAdded(CompositeEditor.java:83)
> 	at org.apache.jackrabbit.oak.spi.commit.EditorDiff.propertyAdded(EditorDiff.java:82)
> 	at org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState.compareAgainstBaseState(ModifiedNodeState.java:375)
> 	at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:148)
> 	at org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState.compareAgainstBaseState(ModifiedNodeState.java:396)
> 	at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:148)
> 	at org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState.compareAgainstBaseState(ModifiedNodeState.java:396)
> 	at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:148)
> 	at org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState.compareAgainstBaseState(ModifiedNodeState.java:396)
> 	at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:148)
> 	at org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState.compareAgainstBaseState(ModifiedNodeState.java:396)
> 	at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:148)
> 	at org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState.compareAgainstBaseState(ModifiedNodeState.java:396)
> 	at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:148)
> 	at org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState.compareAgainstBaseState(ModifiedNodeState.java:396)
> 	at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:148)
> 	at org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState.compareAgainstBaseState(ModifiedNodeState.java:396)
> 	at org.apache.jackrabbit.oak.spi.commit.EditorDiff.childNodeChanged(EditorDiff.java:148)
> 	at org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState.compareAgainstBaseState(ModifiedNodeState.java:396)
> 	at org.apache.jackrabbit.oak.spi.commit.EditorDiff.process(EditorDiff.java:52)
> 	at org.apache.jackrabbit.oak.spi.commit.EditorHook.processCommit(EditorHook.java:54)
> 	at org.apache.jackrabbit.oak.spi.commit.CompositeHook.processCommit(CompositeHook.java:60)
> 	at org.apache.jackrabbit.oak.spi.commit.CompositeHook.processCommit(CompositeHook.java:60)
> 	at org.apache.jackrabbit.oak.spi.state.AbstractNodeStoreBranch$InMemory.merge(AbstractNodeStoreBranch.java:557)
> 	at org.apache.jackrabbit.oak.spi.state.AbstractNodeStoreBranch.merge0(AbstractNodeStoreBranch.java:329)
> 	at org.apache.jackrabbit.oak.plugins.document.DocumentNodeStoreBranch.merge(DocumentNodeStoreBranch.java:148)
> 	at org.apache.jackrabbit.oak.plugins.document.DocumentRootBuilder.merge(DocumentRootBuilder.java:159)
> 	at org.apache.jackrabbit.oak.plugins.document.DocumentNodeStore.merge(DocumentNodeStore.java:1482)
> 	at org.apache.jackrabbit.oak.core.MutableRoot.commit(MutableRoot.java:247)
> {noformat}



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