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From "Ivan Rakov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-6355) Calculating cache size during cache stop sporadically fails with ClusterGroupEmptyCheckedException
Date Tue, 12 Sep 2017 13:34:00 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-6355?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ivan Rakov updated IGNITE-6355:
-------------------------------
    Labels: MakeTeamcityGreenAgain  (was: )

> Calculating cache size during cache stop sporadically fails with ClusterGroupEmptyCheckedException
> --------------------------------------------------------------------------------------------------
>
>                 Key: IGNITE-6355
>                 URL: https://issues.apache.org/jira/browse/IGNITE-6355
>             Project: Ignite
>          Issue Type: Bug
>    Affects Versions: 2.1
>            Reporter: Ivan Rakov
>            Assignee: Ivan Rakov
>              Labels: MakeTeamcityGreenAgain
>             Fix For: 2.3
>
>
> Example stacktrace:
> {noformat}
> [16:21:06,343][ERROR][main][root] Test failed.
> javax.cache.CacheException: class org.apache.ignite.cluster.ClusterGroupEmptyException:
Topology projection is empty.
> 	at org.apache.ignite.internal.processors.cache.GridCacheUtils.convertToCacheException(GridCacheUtils.java:1327)
> 	at org.apache.ignite.internal.processors.cache.IgniteCacheProxyImpl.cacheException(IgniteCacheProxyImpl.java:1672)
> 	at org.apache.ignite.internal.processors.cache.IgniteCacheProxyImpl.size(IgniteCacheProxyImpl.java:762)
> 	at org.apache.ignite.internal.processors.cache.GatewayProtectedCacheProxy.size(GatewayProtectedCacheProxy.java:508)
> 	at org.gridgain.grid.internal.processors.cache.database.IgniteDbSnapshotSelfTest.testReuseCacheProxyAfterRestore(IgniteDbSnapshotSelfTest.java:1793)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:498)
> 	at junit.framework.TestCase.runTest(TestCase.java:176)
> 	at org.apache.ignite.testframework.junits.GridAbstractTest.runTestInternal(GridAbstractTest.java:2000)
> 	at org.apache.ignite.testframework.junits.GridAbstractTest.access$000(GridAbstractTest.java:132)
> 	at org.apache.ignite.testframework.junits.GridAbstractTest$5.run(GridAbstractTest.java:1915)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: class org.apache.ignite.cluster.ClusterGroupEmptyException: Topology projection
is empty.
> 	at org.apache.ignite.internal.util.IgniteUtils$6.apply(IgniteUtils.java:823)
> 	at org.apache.ignite.internal.util.IgniteUtils$6.apply(IgniteUtils.java:821)
> 	... 14 more
> Caused by: class org.apache.ignite.internal.cluster.ClusterGroupEmptyCheckedException:
Topology projection is empty.
> 	at org.apache.ignite.internal.processors.task.GridTaskWorker.getTaskTopology(GridTaskWorker.java:665)
> 	at org.apache.ignite.internal.processors.task.GridTaskWorker.body(GridTaskWorker.java:500)
> 	at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
> 	at org.apache.ignite.internal.processors.task.GridTaskProcessor.startTask(GridTaskProcessor.java:758)
> 	at org.apache.ignite.internal.processors.task.GridTaskProcessor.execute(GridTaskProcessor.java:454)
> 	at org.apache.ignite.internal.processors.task.GridTaskProcessor.execute(GridTaskProcessor.java:410)
> 	at org.apache.ignite.internal.processors.cache.GridCacheAdapter.sizeAsync(GridCacheAdapter.java:3747)
> 	at org.apache.ignite.internal.processors.cache.GridCacheAdapter.size(GridCacheAdapter.java:3704)
> 	at org.apache.ignite.internal.processors.cache.IgniteCacheProxyImpl.size(IgniteCacheProxyImpl.java:759)
> 	... 11 more
> {noformat}
> Data race stems from here (GridCacheAdapter#sizeAsync):
> {noformat}
>         Group grp = modes.near ? cluster.forCacheNodes(name(), true, true, false) : cluster.forDataNodes(name());
>         Collection<ClusterNode> nodes = grp.nodes();
>         if (nodes.isEmpty())
>             return new GridFinishedFuture<>(0);
>         ctx.kernalContext().task().setThreadContext(TC_SUBGRID, nodes);
>         return ctx.kernalContext().task().execute(
>             new SizeTask(ctx.name(), ctx.affinity().affinityTopologyVersion(), peekModes),
null);
> {noformat}
> Method grp.nodes() returns PredicateCollectionView, which size depends on Ignite state.
It can pass nodes.isEmpty() check and become empty later.



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