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From "Alexey Goncharuk (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-4487) NPE on query execution
Date Mon, 09 Jan 2017 08:06:58 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-4487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15810996#comment-15810996
] 

Alexey Goncharuk commented on IGNITE-4487:
------------------------------------------

[~sharpler], my comments are below:
 * Move exception throw statement to the line next to if according to Ignite coding guidelines
 * Change the exception message to match other Ignite exception to something like "Failed
to execute the query (all cache affinity nodes left the grid)". It will be also useful to
print out the topology version on which the query was executed and the query itself
 * Convert the example created by Dmitriy to a unit test, make sure it fails without your
fix; add this test to a cache queries test suite

> NPE on query execution
> ----------------------
>
>                 Key: IGNITE-4487
>                 URL: https://issues.apache.org/jira/browse/IGNITE-4487
>             Project: Ignite
>          Issue Type: Bug
>          Components: cache
>    Affects Versions: 1.8
>            Reporter: Dmitry Karachentsev
>            Assignee: Alexander Menshikov
>             Fix For: 1.8
>
>         Attachments: IgniteThread.java, Main.java
>
>
> NPE may be thrown when called destroyCache() and started querying.
> Attached example reproduces this case when GridDiscoveryManager#removeCacheFilter called
but cache state haven't been changed to STOPPED org.apache.ignite.internal.processors.cache.GridCacheGateway#onStopped.
> {code:none}
> javax.cache.CacheException: class org.apache.ignite.IgniteCheckedException: null
>         at org.apache.ignite.internal.processors.cache.IgniteCacheProxy.query(IgniteCacheProxy.java:740)
>         at com.intellica.evam.engine.event.future.FutureEventWorker.processFutureEvents(FutureEventWorker.java:117)
>         at com.intellica.evam.engine.event.future.FutureEventWorker.run(FutureEventWorker.java:66)
> Caused by: class org.apache.ignite.IgniteCheckedException: null
>         at org.apache.ignite.internal.processors.query.GridQueryProcessor.executeQuery(GridQueryProcessor.java:1693)
>         at org.apache.ignite.internal.processors.cache.IgniteCacheProxy.query(IgniteCacheProxy.java:494)
>         at org.apache.ignite.internal.processors.cache.IgniteCacheProxy.query(IgniteCacheProxy.java:732)
>         ... 2 more
> Caused by: java.lang.NullPointerException
>         at org.apache.ignite.internal.processors.cache.query.GridCacheQueryAdapter$ScanQueryFallbackClosableIterator.init(GridCacheQueryAdapter.java:712)
>         at org.apache.ignite.internal.processors.cache.query.GridCacheQueryAdapter$ScanQueryFallbackClosableIterator.<init>(GridCacheQueryAdapter.java:677)
>         at org.apache.ignite.internal.processors.cache.query.GridCacheQueryAdapter$ScanQueryFallbackClosableIterator.<init>(GridCacheQueryAdapter.java:628)
>         at org.apache.ignite.internal.processors.cache.query.GridCacheQueryAdapter.executeScanQuery(GridCacheQueryAdapter.java:548)
>         at org.apache.ignite.internal.processors.cache.IgniteCacheProxy$2.applyx(IgniteCacheProxy.java:497)
>         at org.apache.ignite.internal.processors.cache.IgniteCacheProxy$2.applyx(IgniteCacheProxy.java:495)
>         at org.apache.ignite.internal.util.lang.IgniteOutClosureX.apply(IgniteOutClosureX.java:36)
>         at org.apache.ignite.internal.processors.query.GridQueryProcessor.executeQuery(GridQueryProcessor.java:1670)
>         ... 4 more
> {code}



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