Flacky LocalWalModeChangeDuringRebalancingSelfTest.testWithExchangesMerge

java.lang.AssertionError: nodeIdx=2, key=6606 expected:<13212> but was:<null>
	at org.junit.Assert.fail(Assert.java:88)
	at org.junit.Assert.failNotEquals(Assert.java:743)
	at org.junit.Assert.assertEquals(Assert.java:118)
	at org.apache.ignite.internal.processors.cache.persistence.LocalWalModeChangeDuringRebalancingSelfTest.testWithExchangesMerge(LocalWalModeChangeDuringRebalancingSelfTest.java:473)
	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 org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.apache.ignite.testframework.junits.GridAbstractTest$6.run(GridAbstractTest.java:2088)
	at java.lang.Thread.run(Thread.java:748) 

[2019-01-23 11:26:25,287][ERROR][sys-stripe-5-#6186%persistence.LocalWalModeChangeDuringRebalancingSelfTest3%][GridDhtColocatedCache] <cache> Failed processing get request: GridNearSingleGetRequest [futId=1548243502606, key=KeyCacheObjectImpl [part=381, val=7037, hasValBytes=true], flags=1, topVer=AffinityTopologyVersion [topVer=8, minorTopVer=1], subjId=f1fbb371-3232-4bfa-a20a-d4cad4b00002, taskNameHash=0, createTtl=-1, accessTtl=-1, txLbl=null, mvccSnapshot=MvccSnapshotResponse [futId=7040, crdVer=1548242747966, cntr=20023, opCntr=1073741823, txs=null, cleanupVer=0, tracking=0]] class org.apache.ignite.IgniteCheckedException: Runtime failure on bounds: [lower=MvccSnapshotSearchRow [res=null, snapshot=MvccSnapshotResponse [futId=7040, crdVer=1548242747966, cntr=20023, opCntr=1073741823, txs=null, cleanupVer=0, tracking=0]], upper=MvccMinSearchRow []] at org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.iterate(BPlusTree.java:1043) at org.apache.ignite.internal.processors.cache.IgniteCacheOffheapManagerImpl$CacheDataStoreImpl.mvccFind(IgniteCacheOffheapManagerImpl.java:2683) at org.apache.ignite.internal.processors.cache.persistence.GridCacheOffheapManager$GridCacheDataStore.mvccFind(GridCacheOffheapManager.java:2141) at org.apache.ignite.internal.processors.cache.IgniteCacheOffheapManagerImpl.mvccRead(IgniteCacheOffheapManagerImpl.java:666) at org.apache.ignite.internal.processors.cache.GridCacheAdapter.getAllAsync0(GridCacheAdapter.java:2023) at org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtCacheAdapter.getDhtAllAsync(GridDhtCacheAdapter.java:807) at org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtGetSingleFuture.getAsync(GridDhtGetSingleFuture.java:399) at org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtGetSingleFuture.map0(GridDhtGetSingleFuture.java:277) at org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtGetSingleFuture.map(GridDhtGetSingleFuture.java:259) at org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtGetSingleFuture.init(GridDhtGetSingleFuture.java:182) at org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtCacheAdapter.getDhtSingleAsync(GridDhtCacheAdapter.java:918) at org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtCacheAdapter.processNearSingleGetRequest(GridDhtCacheAdapter.java:933) at org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtTransactionalCacheAdapter$2.apply(GridDhtTransactionalCacheAdapter.java:152) at org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtTransactionalCacheAdapter$2.apply(GridDhtTransactionalCacheAdapter.java:150) at org.apache.ignite.internal.processors.cache.GridCacheIoManager.processMessage(GridCacheIoManager.java:1125) at org.apache.ignite.internal.processors.cache.GridCacheIoManager.onMessage0(GridCacheIoManager.java:590) at org.apache.ignite.internal.processors.cache.GridCacheIoManager.handleMessage(GridCacheIoManager.java:391) at org.apache.ignite.internal.processors.cache.GridCacheIoManager.handleMessage(GridCacheIoManager.java:317) at org.apache.ignite.internal.processors.cache.GridCacheIoManager.access$100(GridCacheIoManager.java:108) at org.apache.ignite.internal.processors.cache.GridCacheIoManager$1.onMessage(GridCacheIoManager.java:307) at org.apache.ignite.internal.managers.communication.GridIoManager.invokeListener(GridIoManager.java:1561) at org.apache.ignite.internal.managers.communication.GridIoManager.processRegularMessage0(GridIoManager.java:1189) at org.apache.ignite.internal.managers.communication.GridIoManager.access$4200(GridIoManager.java:127) at org.apache.ignite.internal.managers.communication.GridIoManager$8.run(GridIoManager.java:1086) at org.apache.ignite.internal.util.StripedExecutor$Stripe.body(StripedExecutor.java:508) at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:120) at java.lang.Thread.run(Thread.java:748) Caused by: class org.apache.ignite.internal.transactions.IgniteTxMvccVersionCheckedException: Unexpected state: [state=0, rowVer=1548242747966:17057:1, txVer=1548242747966:20023:1073741823, localNodeId=27cccc50-a27d-4a41-980b-0004f2600003] at org.apache.ignite.internal.processors.cache.mvcc.MvccUtils.unexpectedStateException(MvccUtils.java:324) at org.apache.ignite.internal.processors.cache.mvcc.MvccUtils.unexpectedStateException(MvccUtils.java:311) at org.apache.ignite.internal.processors.cache.mvcc.MvccUtils.isVisible(MvccUtils.java:278) at org.apache.ignite.internal.processors.cache.mvcc.MvccUtils.isVisible(MvccUtils.java:208) at org.apache.ignite.internal.processors.cache.mvcc.MvccUtils$GetVisibleState.apply(MvccUtils.java:935) at org.apache.ignite.internal.processors.cache.mvcc.MvccUtils$GetVisibleState.apply(MvccUtils.java:919) at org.apache.ignite.internal.processors.cache.mvcc.MvccUtils.invoke(MvccUtils.java:642) at org.apache.ignite.internal.processors.cache.mvcc.MvccUtils.invoke(MvccUtils.java:603) at org.apache.ignite.internal.processors.cache.mvcc.MvccUtils.getVisibleState(MvccUtils.java:369) at org.apache.ignite.internal.processors.cache.tree.mvcc.search.MvccSnapshotSearchRow.apply(MvccSnapshotSearchRow.java:88) at org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$ClosureCursor.fillFromBuffer0(BPlusTree.java:5442) at org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$AbstractForwardCursor.fillFromBuffer(BPlusTree.java:5313) at org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$AbstractForwardCursor.init(BPlusTree.java:5239) at org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$GetCursor.notFound(BPlusTree.java:2939) at org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$Search.run0(BPlusTree.java:308) at org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$GetPageHandler.run(BPlusTree.java:5643) at org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$Search.run(BPlusTree.java:273) at org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$GetPageHandler.run(BPlusTree.java:5629) at org.apache.ignite.internal.processors.cache.persistence.tree.util.PageHandler.readPage(PageHandler.java:168) at org.apache.ignite.internal.processors.cache.persistence.DataStructure.read(DataStructure.java:349) at org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.read(BPlusTree.java:5830) at org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.findDown(BPlusTree.java:1314) at org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.doFind(BPlusTree.java:1281) at org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.access$8300(BPlusTree.java:92) at org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$AbstractForwardCursor.find(BPlusTree.java:5322) at org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$ClosureCursor.iterate(BPlusTree.java:5471) at org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree$ClosureCursor.access$4800(BPlusTree.java:5397) at org.apache.ignite.internal.processors.cache.persistence.tree.BPlusTree.iterate(BPlusTree.java:1040) ... 26 more