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https://issues.apache.org/jira/browse/IGNITE-10376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16704552#comment-16704552
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Andrew Mashenkov commented on IGNITE-10376:
-------------------------------------------
I'd think we should never nullify references to managers components as it is
hard to debug their state in such cases.
GridCacheEvictionManager has busy lock and should correctly ignore touch call.
We have to add stop-flag and implement similar logic into
CacheOffheapEvictionManager.
But seems, we have to nullify GridCacheEvictionManager.plc field on stop
(eviction policy) to allow GC collect garbage as EvictionPolocy itself can hold
outdated data and doesn't provides any clear method.
> NPE during invocation on cache
> ------------------------------
>
> Key: IGNITE-10376
> URL: https://issues.apache.org/jira/browse/IGNITE-10376
> Project: Ignite
> Issue Type: Test
> Reporter: Ivan Fedotov
> Assignee: Ivan Fedotov
> Priority: Blocker
> Labels: MakeTeamcityGreenAgain, stability, test-fail
> Attachments: IGNITE-10376 log.txt
>
>
> Null pointer exception sometimes appears in
> [testAtomicOnheapTwoBackupAsyncFullSync|https://ci.ignite.apache.org/viewLog.html?buildId=2398013&tab=buildResultsDiv&buildTypeId=IgniteTests24Java8_ContinuousQuery4#testNameId3300126853696550025]
> at the
> [moment|https://github.com/apache/ignite/blob/master/modules/core/src/test/java/org/apache/ignite/internal/processors/cache/query/continuous/CacheContinuousQueryOrderingEventTest.java#L371]
> of CacheEntryProcessor invocation.
> {code}class org.apache.ignite.binary.BinaryObjectException: Failed to update
> meta data for type:
> org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryOrderingEventTest$QueryTestValue
> at
> org.apache.ignite.internal.processors.cache.binary.CacheObjectBinaryProcessorImpl.addMeta(CacheObjectBinaryProcessorImpl.java:516)
> at
> org.apache.ignite.internal.processors.cache.binary.CacheObjectBinaryProcessorImpl$1.addMeta(CacheObjectBinaryProcessorImpl.java:194)
> at
> org.apache.ignite.internal.binary.BinaryContext.updateMetadata(BinaryContext.java:1332)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.atomic.GridDhtAtomicCache.updateAllAsyncInternal0(GridDhtAtomicCache.java:1815)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.atomic.GridDhtAtomicCache.updateAllAsyncInternal(GridDhtAtomicCache.java:1668)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.atomic.GridNearAtomicAbstractUpdateFuture.sendSingleRequest(GridNearAtomicAbstractUpdateFuture.java:299)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.atomic.GridNearAtomicSingleUpdateFuture.map(GridNearAtomicSingleUpdateFuture.java:483)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.atomic.GridNearAtomicSingleUpdateFuture.mapOnTopology(GridNearAtomicSingleUpdateFuture.java:443)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.atomic.GridNearAtomicAbstractUpdateFuture.map(GridNearAtomicAbstractUpdateFuture.java:248)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.atomic.GridDhtAtomicCache.update0(GridDhtAtomicCache.java:1150)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.atomic.GridDhtAtomicCache.invoke0(GridDhtAtomicCache.java:831)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.atomic.GridDhtAtomicCache.invoke(GridDhtAtomicCache.java:787)
> at
> org.apache.ignite.internal.processors.cache.IgniteCacheProxyImpl.invoke(IgniteCacheProxyImpl.java:1438)
> at
> org.apache.ignite.internal.processors.cache.IgniteCacheProxyImpl.invoke(IgniteCacheProxyImpl.java:1482)
> at
> org.apache.ignite.internal.processors.cache.GatewayProtectedCacheProxy.invoke(GatewayProtectedCacheProxy.java:1228)
> at
> org.apache.ignite.internal.processors.cache.query.continuous.CacheContinuousQueryOrderingEventTest$1.run(CacheContinuousQueryOrderingEventTest.java:373)
> at
> org.apache.ignite.testframework.GridTestUtils$7.call(GridTestUtils.java:1300)
> at
> org.apache.ignite.testframework.GridTestThread.run(GridTestThread.java:84){code}
> From the full log that contains NPE:
> {code}java.lang.NullPointerException
> at
> org.apache.ignite.internal.processors.cache.GridCacheMapEntry.touch(GridCacheMapEntry.java:5063)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.atomic.GridDhtAtomicCache.unlockEntries(GridDhtAtomicCache.java:3009)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.atomic.GridDhtAtomicCache.updateAllAsyncInternal0(GridDhtAtomicCache.java:1826)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.atomic.GridDhtAtomicCache.updateAllAsyncInternal(GridDhtAtomicCache.java:1668)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.atomic.GridDhtAtomicCache.processNearAtomicUpdateRequest(GridDhtAtomicCache.java:3138)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.atomic.GridDhtAtomicCache.access$400(GridDhtAtomicCache.java:135)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.atomic.GridDhtAtomicCache$5.apply(GridDhtAtomicCache.java:270)
> at
> org.apache.ignite.internal.processors.cache.distributed.dht.atomic.GridDhtAtomicCache$5.apply(GridDhtAtomicCache.java:265)
> at
> org.apache.ignite.internal.processors.cache.GridCacheIoManager.processMessage(GridCacheIoManager.java:1059)
> at
> org.apache.ignite.internal.processors.cache.GridCacheIoManager.onMessage0(GridCacheIoManager.java:584)
> at
> org.apache.ignite.internal.processors.cache.GridCacheIoManager.handleMessage(GridCacheIoManager.java:383)
> at
> org.apache.ignite.internal.processors.cache.GridCacheIoManager.handleMessage(GridCacheIoManager.java:309)
> at
> org.apache.ignite.internal.processors.cache.GridCacheIoManager.access$100(GridCacheIoManager.java:100)
> at
> org.apache.ignite.internal.processors.cache.GridCacheIoManager$1.onMessage(GridCacheIoManager.java:299)
> at
> org.apache.ignite.internal.managers.communication.GridIoManager.invokeListener(GridIoManager.java:1568)
> at
> org.apache.ignite.internal.managers.communication.GridIoManager.processRegularMessage0(GridIoManager.java:1196)
> at
> org.apache.ignite.internal.managers.communication.GridIoManager.access$4200(GridIoManager.java:127)
> at
> org.apache.ignite.internal.managers.communication.GridIoManager$9.run(GridIoManager.java:1092)
> at
> org.apache.ignite.internal.util.StripedExecutor$Stripe.body(StripedExecutor.java:505)
> at
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120)
> at java.lang.Thread.run(Thread.java:748){code}
> It seems that test does not work after integration MVCC in Continuous Query.
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