Phil Yang created HBASE-17112:
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Summary: Prevent setting timestamp of delta operations being same
as previous value's
Key: HBASE-17112
URL: https://issues.apache.org/jira/browse/HBASE-17112
Project: HBase
Issue Type: Bug
Reporter: Phil Yang
Assignee: Phil Yang
In delta operations, Increment and Append. We will read current value first and
then write the new whole result into WAL as the type of Put with current
timestamp. If the previous ts is larger than current ts, we will use the
previous ts.
If we have two Puts with same TS, we will ignore the Put with lower sequence
id. It is not friendly with versioning. And for replication we will drop
sequence id while writing to peer cluster so in the slave we don't know what
the order they are being written. If the pushing is disordered, the result will
be wrong.
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