Row locks may deadlock with themselves
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Key: HBASE-2295
URL: https://issues.apache.org/jira/browse/HBASE-2295
Project: Hadoop HBase
Issue Type: Bug
Components: regionserver
Reporter: Todd Lipcon
Row locks in HRegion are keyed by a int-sized hash of the row key. It's
perfectly possible for two rows to hash to the same key. So, if any client
tries to lock both rows, it will deadlock with itself. Switching to a 64-bit
hash is an improvement but still sketchy.
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