[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Resolution: Fixed Fix Version/s: 0.95.1 0.98.0 Status: Resolved (was: Patch Available) Integrated into trunk and 0.95. Special thanks to JD for reviewing and testing the patches, and catching several big issues. > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Fix For: 0.98.0, 0.95.1 > > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > 0.94-8420_v6.1.patch, trunk-8420_v1.patch, trunk-8420_v2.patch, > trunk-8420_v3.patch, trunk-8420_v4.patch, trunk-8420_v5.1.patch, > trunk-8420_v5.patch, trunk-8420_v6.1.patch, trunk-8420_v6.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Release Note: By default, prefetching is enabled in the trunk version (0.95.2 and 0.98). To disable it, users have to set prefetching off in the Scan object. This patch introduced a configuration hbase.hregionserver.prefetcher.resultsize.max to control how much data we can prefetch. By default, it is 256MB. If there is already more than that much data prefetched, no new prefetching will be scheduled until some prefetched results are retrieved by clients, so there is room again for new prefetching. Hadoop Flags: Reviewed > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > 0.94-8420_v6.1.patch, trunk-8420_v1.patch, trunk-8420_v2.patch, > trunk-8420_v3.patch, trunk-8420_v4.patch, trunk-8420_v5.1.patch, > trunk-8420_v5.patch, trunk-8420_v6.1.patch, trunk-8420_v6.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Status: Patch Available (was: Open) > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > 0.94-8420_v6.1.patch, trunk-8420_v1.patch, trunk-8420_v2.patch, > trunk-8420_v3.patch, trunk-8420_v4.patch, trunk-8420_v5.1.patch, > trunk-8420_v5.patch, trunk-8420_v6.1.patch, trunk-8420_v6.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Attachment: trunk-8420_v6.1.patch Patch v6.1, it fixed the currentScanResultSize counting, also modified the unit test a little to check if the prefetched result size counter is not always 0, in case currentScanResultSize is not calculated at all. > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > 0.94-8420_v6.1.patch, trunk-8420_v1.patch, trunk-8420_v2.patch, > trunk-8420_v3.patch, trunk-8420_v4.patch, trunk-8420_v5.1.patch, > trunk-8420_v5.patch, trunk-8420_v6.1.patch, trunk-8420_v6.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Attachment: 0.94-8420_v6.1.patch Patch for 0.94, almost the same as that for trunk, except that prefetching is disabled by default. > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > 0.94-8420_v6.1.patch, trunk-8420_v1.patch, trunk-8420_v2.patch, > trunk-8420_v3.patch, trunk-8420_v4.patch, trunk-8420_v5.1.patch, > trunk-8420_v5.patch, trunk-8420_v6.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Status: Open (was: Patch Available) JD found out that currentScanResultSize is not always updated. Recall patch v6. > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > trunk-8420_v1.patch, trunk-8420_v2.patch, trunk-8420_v3.patch, > trunk-8420_v4.patch, trunk-8420_v5.1.patch, trunk-8420_v5.patch, > trunk-8420_v6.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Status: Patch Available (was: Open) Patch v6 is rebased to trunk latest, + a little change not to interrupt submitted prefetching task. Haven't seen ClosedChannelException any more. > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > trunk-8420_v1.patch, trunk-8420_v2.patch, trunk-8420_v3.patch, > trunk-8420_v4.patch, trunk-8420_v5.1.patch, trunk-8420_v5.patch, > trunk-8420_v6.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Attachment: trunk-8420_v6.patch > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > trunk-8420_v1.patch, trunk-8420_v2.patch, trunk-8420_v3.patch, > trunk-8420_v4.patch, trunk-8420_v5.1.patch, trunk-8420_v5.patch, > trunk-8420_v6.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Status: Open (was: Patch Available) Running into ClosedChannelException with patch v5.1. We should be graceful in closeScanner. > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > trunk-8420_v1.patch, trunk-8420_v2.patch, trunk-8420_v3.patch, > trunk-8420_v4.patch, trunk-8420_v5.1.patch, trunk-8420_v5.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Status: Patch Available (was: Open) Attached patch v5.1, similar to v5, changes are (1) synchronized the prefetching task cancellation in closeScanner and increasing the counter in the task, (2) changed the exception handling a little bit > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > trunk-8420_v1.patch, trunk-8420_v2.patch, trunk-8420_v3.patch, > trunk-8420_v4.patch, trunk-8420_v5.1.patch, trunk-8420_v5.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Attachment: trunk-8420_v5.1.patch > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > trunk-8420_v1.patch, trunk-8420_v2.patch, trunk-8420_v3.patch, > trunk-8420_v4.patch, trunk-8420_v5.1.patch, trunk-8420_v5.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Status: Open (was: Patch Available) There still could be racing issue in resetting the counter. Will keep it simple. > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > trunk-8420_v1.patch, trunk-8420_v2.patch, trunk-8420_v3.patch, > trunk-8420_v4.patch, trunk-8420_v5.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Status: Patch Available (was: Open) Attached v5. In case a submitted task is interrupted by cancel(), the prefetched result size counter is reduced if it is already increased. Also added some change to make the test not flaky by making sure the right region scanner holder is used to check prefetching flag/counter in the test. > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > trunk-8420_v1.patch, trunk-8420_v2.patch, trunk-8420_v3.patch, > trunk-8420_v4.patch, trunk-8420_v5.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Attachment: trunk-8420_v5.patch > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > trunk-8420_v1.patch, trunk-8420_v2.patch, trunk-8420_v3.patch, > trunk-8420_v4.patch, trunk-8420_v5.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Status: Open (was: Patch Available) I will make a little change so that we don't leak the cached result size counter if the prefetcher is cancelled at a wrong time. As to caching in multiple HDFS block size, it will cache things more and longer. It will be very helpful if there are not many scanners, probably not good as a general solution. > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > trunk-8420_v1.patch, trunk-8420_v2.patch, trunk-8420_v3.patch, > trunk-8420_v4.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Status: Patch Available (was: Open) > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > trunk-8420_v1.patch, trunk-8420_v2.patch, trunk-8420_v3.patch, > trunk-8420_v4.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Attachment: trunk-8420_v4.patch > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > trunk-8420_v1.patch, trunk-8420_v2.patch, trunk-8420_v3.patch, > trunk-8420_v4.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Status: Open (was: Patch Available) > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > trunk-8420_v1.patch, trunk-8420_v2.patch, trunk-8420_v3.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Status: Patch Available (was: Open) Patch v3 added configuration to control the size of max number of prefetcher threads, and max prefetched result size. > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > trunk-8420_v1.patch, trunk-8420_v2.patch, trunk-8420_v3.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Attachment: trunk-8420_v3.patch > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > trunk-8420_v1.patch, trunk-8420_v2.patch, trunk-8420_v3.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Status: Open (was: Patch Available) > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > trunk-8420_v1.patch, trunk-8420_v2.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Status: Patch Available (was: Open) Updated the patch a little, mostly for the 0.94 patch: reverted the caching default, using the scan attribute to specify prefetching instead of a global flag. > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > trunk-8420_v1.patch, trunk-8420_v2.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Attachment: trunk-8420_v2.patch > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > trunk-8420_v1.patch, trunk-8420_v2.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Attachment: 0.94-8420_v2.patch > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, 0.94-8420_v2.patch, > trunk-8420_v1.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Status: Open (was: Patch Available) > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, trunk-8420_v1.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Status: Patch Available (was: Open) > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, trunk-8420_v1.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Attachment: trunk-8420_v1.patch The patch is a little different from the original one in 0.89-fb. The reason is that we have coprocessor supports and the scanner logic is a little different. We have pb too. > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch, trunk-8420_v1.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Attachment: 0.94-8420_v1.patch In the 0.94 version, Scan is not touched since it breaks compatibility. So prefetching can be globally enabled or disabled. I have ran all unit tests with prefetching enabled. In the patch, it is disabled by default though. > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > Attachments: 0.94-8420_v1.patch > > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Summary: Port HBASE-6874 Implement prefetching for scanners from 0.89-fb (was: Port HBASE-6874 Implement prefetching for scanners from 0.89-fb to trunk) > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb > - > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > > This should help scanner performance. We should have it in trunk. -- 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
[jira] [Updated] (HBASE-8420) Port HBASE-6874 Implement prefetching for scanners from 0.89-fb to trunk
[ https://issues.apache.org/jira/browse/HBASE-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Jimmy Xiang updated HBASE-8420: --- Summary: Port HBASE-6874 Implement prefetching for scanners from 0.89-fb to trunk (was: Port HBASE-6874 Implement prefetching for scanners from 0.89 to trunk) > Port HBASE-6874 Implement prefetching for scanners from 0.89-fb to trunk > -- > > Key: HBASE-8420 > URL: https://issues.apache.org/jira/browse/HBASE-8420 > Project: HBase > Issue Type: Improvement >Reporter: Jimmy Xiang >Assignee: Jimmy Xiang > > This should help scanner performance. We should have it in trunk. -- 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
