[ https://issues.apache.org/jira/browse/HBASE-9118?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Anoop Sam John resolved HBASE-9118. ----------------------------------- Resolution: Fixed Fix Version/s: 0.98.0 Patch committed with the issue HBASE-8496 already contains this. Closing. > Optimization in HFile V3 when no tags are present in a file > ----------------------------------------------------------- > > Key: HBASE-9118 > URL: https://issues.apache.org/jira/browse/HBASE-9118 > Project: HBase > Issue Type: Sub-task > Affects Versions: 0.98.0, 0.95.2 > Reporter: Anoop Sam John > Assignee: Anoop Sam John > Fix For: 0.98.0 > > > Now with V3 we will write tags length (short) along with every KV after value > bytes. When no tags at all present it will be wasting 2 bytes for every KV. > We can avoid this. During flush let the tags length be written. In fileInfo > we can add info like max tags length. During compaction if all the files > undergoing the compaction having a 0 max tags length, we can avoid writing 2 > bytes (0) along with every KV.. > Note : Similar optimization available with mvcc -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira