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From "Semen Boikov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-1366) Start CacheProcessor before QueryProcessor
Date Thu, 03 Sep 2015 12:28:45 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-1366?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14728943#comment-14728943
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Semen Boikov commented on IGNITE-1366:
--------------------------------------

Found another issue which would be good to fix as part of this ticket: test IgniteCacheP2pUnmarshallingErrorTest
hangs from time to time on scan query execution:
{noformat}
	at org.apache.ignite.internal.processors.cache.query.GridCacheQueryFutureAdapter.next(GridCacheQueryFutureAdapter.java:171)
	at org.apache.ignite.internal.processors.cache.portable.CacheObjectPortableProcessorImpl.onUtilityCacheStarted(CacheObjectPortableProcessorImpl.java:361)
	at org.apache.ignite.internal.processors.cache.GridCacheProcessor.onKernalStart(GridCacheProcessor.java:885)
{noformat}

Looks like this  can happen because scan request message can arrive on node before message
listener is registered.



> Start CacheProcessor before QueryProcessor
> ------------------------------------------
>
>                 Key: IGNITE-1366
>                 URL: https://issues.apache.org/jira/browse/IGNITE-1366
>             Project: Ignite
>          Issue Type: Bug
>          Components: cache
>            Reporter: Semen Boikov
>            Assignee: Semen Boikov
>            Priority: Critical
>             Fix For: ignite-1.5
>
>
> Now QueryProcessor is started before CacheProcessor. With this order cache processor
can be stopped at the moment when query request is processed, and this causes sporadic errors
like NPE (I see this from time to time in IgniteCacheQueryNodeRestartSelfTest).
> Looks like cache processor does not need QueryProcessor when it's 'start' method is called
so I think start order should be changed. 



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