[ https://issues.apache.org/jira/browse/HBASE-4434?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack resolved HBASE-4434. -------------------------- Resolution: Fixed Fix Version/s: 0.92.0 Hadoop Flags: [Reviewed] Committed to 0.92 branch and to TRUNK. Thanks for the sweet patch Kannan. > seek optimization: don't do eager HFile Scanner next() unless the next KV is > needed > ----------------------------------------------------------------------------------- > > Key: HBASE-4434 > URL: https://issues.apache.org/jira/browse/HBASE-4434 > Project: HBase > Issue Type: Improvement > Reporter: Kannan Muthukkaruppan > Assignee: Kannan Muthukkaruppan > Fix For: 0.92.0 > > Attachments: HBASE-4434.txt > > > When a seek/reseek is done on StoreFileScanner, in addition to setting the > current KV, it also does a HFileScanner level next() ahead of time even if > the next KV is never actually required. This inefficiency can potentially > result in additional disk seeks and sub-optimal use of the block cache > (primarily for cases where the KVs are large and each occupies an HFile block > of its own). -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira