[ https://issues.apache.org/jira/browse/HBASE-17112?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Phil Yang updated HBASE-17112: ------------------------------ Fix Version/s: 1.3.1 > Prevent setting timestamp of delta operations the same as previous value's > -------------------------------------------------------------------------- > > Key: HBASE-17112 > URL: https://issues.apache.org/jira/browse/HBASE-17112 > Project: HBase > Issue Type: Bug > Affects Versions: 1.1.7, 0.98.23, 1.2.4 > Reporter: Phil Yang > Assignee: Phil Yang > Fix For: 2.0.0, 1.4.0, 1.3.1, 1.2.5, 0.98.24, 1.1.8 > > Attachments: HBASE-17112-branch-1.1-v1.patch, > HBASE-17112-branch-1.1-v1.patch, HBASE-17112-branch-1-v1.patch, > HBASE-17112-branch-1-v1.patch, HBASE-17112-v1.patch, HBASE-17112-v2.patch, > HBASE-17112-v2.patch > > > 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. > We can set the new ts to previous+1 if the previous is not less than now. -- This message was sent by Atlassian JIRA (v6.3.15#6346)