TestAtomicOperation.testMultiRowMutationMultiThreads fails occasionally
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Key: HBASE-5569
URL: https://issues.apache.org/jira/browse/HBASE-5569
Project: HBase
Issue Type: Bug
Reporter: Lars Hofhansl
Priority: Minor
What I pieces together so far is that it is the *scanning* side that has
problems sometimes.
Every time I see a assertion failure in the log I see this before:
{quote}
2012-03-12 21:48:49,523 DEBUG [Thread-211] regionserver.StoreScanner(499):
Storescanner.peek() is changed where before =
rowB/colfamily11:qual1/75366/Put/vlen=6,and after =
rowB/colfamily11:qual1/75203/DeleteColumn/vlen=0
{quote}
The order of if the Put and Delete is sometimes reversed.
The test threads should always see exactly one KV, if the "before" was the Put
the thread see 0 KVs, if the "before" was the Delete the threads see 2 KVs.
This debug message comes from StoreScanner to checkReseek. It seems we still
some consistency issue with scanning sometimes :(
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