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Chia-Ping Tsai updated HBASE-15497: ----------------------------------- Resolution: Fixed Hadoop Flags: Reviewed Status: Resolved (was: Patch Available) [~cuijianwei] Thanks for the patch. Consider using your github email in your patch. Otherwise, the commit won't be connected to your account in github. I commit the patch with your github email. > Incorrect javadoc for atomicity guarantee of Increment and Append > ----------------------------------------------------------------- > > Key: HBASE-15497 > URL: https://issues.apache.org/jira/browse/HBASE-15497 > Project: HBase > Issue Type: Bug > Components: documentation > Affects Versions: 2.0.0 > Reporter: Jianwei Cui > Assignee: Jianwei Cui > Priority: Minor > Fix For: 1.4.0, 1.3.2, 1.5.0, 1.2.7, 2.0.0-alpha-3 > > Attachments: HBASE-15497-v1.patch > > > At the front of {{Increment.java}} file, there is comment about read > atomicity: > {code} > * This operation does not appear atomic to readers. Increments are done > * under a single row lock, so write operations to a row are synchronized, but > * readers do not take row locks so get and scan operations can see this > * operation partially completed. > {code} > It seems this comment is not true after MVCC integrated > [HBASE-4583|https://issues.apache.org/jira/browse/HBASE-4583]. Currently, the > readers can be guaranteed to read the whole result of Increment if I am not > wrong. Similar comments also exist in {{Append.java}}, {{Table#append(...)}} > and {{Table#increment(...)}} -- This message was sent by Atlassian JIRA (v6.4.14#64029)