[IGNITE-10261] MVCC: cache operation may hang during late affinity assignment.

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.7
• Fix Version/s: 2.8
• Component/s: mvcc
• Labels: failover mvcc_stability
• Assignee: Roman Kondakov
• Reporter: Andrey Mashenkov
• Created: 14/Nov/18 20:09
• Updated: 11/Mar/19 12:04
• Resolved: 11/Mar/19 12:00

Description

ForceKey response processing fails with ClassCastException with Mvcc mode that causes test hanging.

Issue can be easily reproduced with backups > 0 and disabled rebalance. See GridCacheDhtPreloadPutGetSelfTest.testPutGetNone1().

Also CacheLateAffinityAssignmentTest.testRandomOperations() hangs sometimes due to same reason.
 

java.lang.ClassCastException: org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtCacheEntry cannot be cast to org.apache.ignite.internal.processors.cache.mvcc.MvccVersionAware
 at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtForceKeysFuture$MiniFuture.onResult(GridDhtForceKeysFuture.java:545)
 at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtForceKeysFuture.onResult(GridDhtForceKeysFuture.java:202)
 at org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtCacheAdapter.processForceKeyResponse(GridDhtCacheAdapter.java:180)
 at org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtTransactionalCacheAdapter$11.onMessage(GridDhtTransactionalCacheAdapter.java:208)
 at org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtTransactionalCacheAdapter$11.onMessage(GridDhtTransactionalCacheAdapter.java:206)
 at org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtCacheAdapter$MessageHandler.apply(GridDhtCacheAdapter.java:1434)
 at org.apache.ignite.internal.processors.cache.distributed.dht.GridDhtCacheAdapter$MessageHandler.apply(GridDhtCacheAdapter.java:1416)
 at org.apache.ignite.internal.processors.cache.GridCacheIoManager.processMessage(GridCacheIoManager.java:1054)

 

Issue Links

• links to: GitHub Pull Request #5995
• links to: TC run