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Hadoop QA commented on HBASE-7495: ---------------------------------- {color:red}-1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12567541/HBASE-7495-v8.txt against trunk revision . {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:green}+1 tests included{color}. The patch appears to include 9 new or modified tests. {color:red}-1 patch{color}. The patch command could not apply the patch. Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/4288//console This message is automatically generated. > parallel seek in StoreScanner > ----------------------------- > > Key: HBASE-7495 > URL: https://issues.apache.org/jira/browse/HBASE-7495 > Project: HBase > Issue Type: Bug > Components: Scanners > Affects Versions: 0.94.3, 0.96.0 > Reporter: Liang Xie > Assignee: Liang Xie > Attachments: HBASE-7495.txt, HBASE-7495.txt, HBASE-7495.txt, > HBASE-7495-v2.txt, HBASE-7495-v3.txt, HBASE-7495-v4.txt, HBASE-7495-v4.txt, > HBASE-7495-v5.txt, HBASE-7495-v6.txt, HBASE-7495-v7.txt, HBASE-7495-v8.txt > > > seems there's a potential improvable space before doing scanner.next: > {code:title=StoreScanner.java|borderStyle=solid} > if (explicitColumnQuery && lazySeekEnabledGlobally) { > for (KeyValueScanner scanner : scanners) { > scanner.requestSeek(matcher.getStartKey(), false, true); > } > } else { > for (KeyValueScanner scanner : scanners) { > scanner.seek(matcher.getStartKey()); > } > } > {code} > we can do scanner.requestSeek or scanner.seek in parallel, instead of current > serialization, to reduce latency for special case. > Any ideas on it ? I'll have a try if the comments/suggestions are positive:) -- 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