[HBASE-21840] TestHRegionWithInMemoryFlush fails with NPE

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha-1, 2.2.0, 2.1.3, 2.0.5, 2.3.0
• Component/s: test
• Assignee: Duo Zhang
• Reporter: Duo Zhang
• Created: 04/Feb/19 04:58
• Updated: 05/Feb/19 02:26
• Resolved: 04/Feb/19 11:38

Description

Found this one when testing 2.1.3.

Exception in thread "PutThread" java.lang.NullPointerException
        at org.apache.hadoop.hbase.regionserver.CompactingMemStore.checkActiveSize(CompactingMemStore.java:392)
        at org.apache.hadoop.hbase.regionserver.AbstractMemStore.internalAdd(AbstractMemStore.java:307)
        at org.apache.hadoop.hbase.regionserver.AbstractMemStore.add(AbstractMemStore.java:132)
        at org.apache.hadoop.hbase.regionserver.AbstractMemStore.add(AbstractMemStore.java:112)
        at org.apache.hadoop.hbase.regionserver.HStore.add(HStore.java:750)
        at org.apache.hadoop.hbase.regionserver.HRegion.applyToMemStore(HRegion.java:4420)
        at org.apache.hadoop.hbase.regionserver.HRegion.access$500(HRegion.java:226)
        at org.apache.hadoop.hbase.regionserver.HRegion$BatchOperation.applyFamilyMapToMemStore(HRegion.java:3479)
        at org.apache.hadoop.hbase.regionserver.HRegion$BatchOperation.lambda$writeMiniBatchOperationsToMemStore$0(HRegion.java:3170)
        at org.apache.hadoop.hbase.regionserver.HRegion$BatchOperation.visitBatchOperations(HRegion.java:3103)
        at org.apache.hadoop.hbase.regionserver.HRegion$BatchOperation.writeMiniBatchOperationsToMemStore(HRegion.java:3162)
        at org.apache.hadoop.hbase.regionserver.HRegion$MutationBatchOperation.writeMiniBatchOperationsToMemStore(HRegion.java:3644)
        at org.apache.hadoop.hbase.regionserver.HRegion.doMiniBatchMutate(HRegion.java:4058)
        at org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:3991)
        at org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:3922)
        at org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:3913)
        at org.apache.hadoop.hbase.regionserver.HRegion.batchMutate(HRegion.java:3927)
        at org.apache.hadoop.hbase.regionserver.HRegion.doBatchMutate(HRegion.java:4254)
        at org.apache.hadoop.hbase.regionserver.HRegion.put(HRegion.java:3046)

And later the test is stuck, since the MVCC can not be advanced any more.

Issue Links

• is broken by: HBASE-21764 Size of in-memory compaction thread pool should be configurable