[IGNITE-10242] NPE in GridDhtPartitionDemander#handleSupplyMessage when concurrently rebalancing and stopping cache in same cache group.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.5, 2.6
• Fix Version/s: 2.8
• Assignee: Ivan Daschinsky
• Reporter: Ivan Daschinsky
• Created: 13/Nov/18 16:30
• Updated: 02/Aug/19 11:26
• Resolved: 06/Dec/18 15:53

Description

NPE in GridDhtPartitionDemander#handleSupplyMessage occurs when concurrently rebalancing and stopping cache in same cache group. Reproducer is attached

java.lang.NullPointerException
	at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionDemander.preloadEntry(GridDhtPartitionDemander.java:893)
	at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPartitionDemander.handleSupplyMessage(GridDhtPartitionDemander.java:772)
	at org.apache.ignite.internal.processors.cache.distributed.dht.preloader.GridDhtPreloader.handleSupplyMessage(GridDhtPreloader.java:331)
	at org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$5.apply(GridCachePartitionExchangeManager.java:411)
	at org.apache.ignite.internal.processors.cache.GridCachePartitionExchangeManager$5.apply(GridCachePartitionExchangeManager.java:401)
	at org.apache.ignite.internal.processors.cache.GridCacheIoManager.processMessage(GridCacheIoManager.java:1058)
	at org.apache.ignite.internal.processors.cache.GridCacheIoManager.onMessage0(GridCacheIoManager.java:583)
	at org.apache.ignite.internal.processors.cache.GridCacheIoManager.access$700(GridCacheIoManager.java:101)

Issue Links

• is duplicated by: IGNITE-10327 Claster take NPE due cache stop and stop by handler
• links to: GitHub Pull Request #5535
• links to: IGNT-CR-979
• links to: PR