[jira] [Created] (HBASE-15497) Incorrect javadoc for atomicity guarantee of Increment and Append

["Jianwei Cui (JIRA)" <ji...@apache.org>]

Jianwei Cui created HBASE-15497:
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             Summary: 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
            Priority: Minor


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(...)}}




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