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https://issues.apache.org/jira/browse/HBASE-16438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15961236#comment-15961236
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Ted Yu commented on HBASE-16438:
--------------------------------
NPE from MemStoreLABImpl.java appeared in several failed tests:
{code}
testRegionObserverScanTimeStacking(org.apache.hadoop.hbase.coprocessor.TestRegionObserverScannerOpenHook)
Time elapsed: 0.354 sec <<< ERROR!
java.lang.NullPointerException: null
at
org.apache.hadoop.hbase.regionserver.MemStoreLABImpl.getOrMakeChunk(MemStoreLABImpl.java:242)
at
org.apache.hadoop.hbase.regionserver.MemStoreLABImpl.copyCellInto(MemStoreLABImpl.java:118)
at
org.apache.hadoop.hbase.regionserver.Segment.maybeCloneWithAllocator(Segment.java:167)
{code}
Please fix.
> Create a cell type so that chunk id is embedded in it
> -----------------------------------------------------
>
> Key: HBASE-16438
> URL: https://issues.apache.org/jira/browse/HBASE-16438
> Project: HBase
> Issue Type: Sub-task
> Affects Versions: 2.0.0
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Attachments:
> HBASE-16438_10_ChunkCreatorwrappingChunkPool_withchunkRef.patch,
> HBASE-16438_11_ChunkCreatorwrappingChunkPool_withchunkRef.patch,
> HBASE-16438_12_ChunkCreatorwrappingChunkPool_withchunkRef.patch,
> HBASE-16438_1.patch, HBASE-16438_3_ChunkCreatorwrappingChunkPool.patch,
> HBASE-16438_4_ChunkCreatorwrappingChunkPool.patch,
> HBASE-16438_8_ChunkCreatorwrappingChunkPool_withchunkRef.patch,
> HBASE-16438_9_ChunkCreatorwrappingChunkPool_withchunkRef.patch,
> HBASE-16438.patch, MemstoreChunkCell_memstoreChunkCreator_oldversion.patch,
> MemstoreChunkCell_trunk.patch
>
>
> For CellChunkMap we may need a cell such that the chunk out of which it was
> created, the id of the chunk be embedded in it so that when doing flattening
> we can use the chunk id as a meta data. More details will follow once the
> initial tasks are completed.
> Why we need to embed the chunkid in the Cell is described by [~anastas] in
> this remark over in parent issue
> https://issues.apache.org/jira/browse/HBASE-14921?focusedCommentId=15244119&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15244119
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