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Hadoop QA commented on HBASE-10993: ----------------------------------- {color:green}+1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12643572/HBASE-10993-v4.patch against trunk revision . ATTACHMENT ID: 12643572 {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:green}+1 tests included{color}. The patch appears to include 8 new or modified tests. {color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings. {color:green}+1 javadoc{color}. The javadoc tool did not generate any warning messages. {color:green}+1 findbugs{color}. The patch does not introduce any new Findbugs (version 1.3.9) warnings. {color:green}+1 release audit{color}. The applied patch does not increase the total number of release audit warnings. {color:green}+1 lineLengths{color}. The patch does not introduce lines longer than 100 {color:green}+1 site{color}. The mvn site goal succeeds with this patch. {color:green}+1 core tests{color}. The patch passed unit tests in . Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/9467//testReport/ Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/9467//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-protocol.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/9467//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-thrift.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/9467//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-client.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/9467//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/9467//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/9467//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/9467//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/9467//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/9467//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/9467//console This message is automatically generated. > Deprioritize long-running scanners > ---------------------------------- > > Key: HBASE-10993 > URL: https://issues.apache.org/jira/browse/HBASE-10993 > Project: HBase > Issue Type: Sub-task > Reporter: Matteo Bertozzi > Assignee: Matteo Bertozzi > Priority: Minor > Fix For: 0.99.0 > > Attachments: HBASE-10993-v0.patch, HBASE-10993-v1.patch, > HBASE-10993-v2.patch, HBASE-10993-v3.patch, HBASE-10993-v4.patch, > HBASE-10993-v4.patch > > > Currently we have a single call queue that serves all the "normal user" > requests, and the requests are executed in FIFO. > When running map-reduce jobs and user-queries on the same machine, we want to > prioritize the user-queries. > Without changing too much code, and not having the user giving hints, we can > add a “vtime” field to the scanner, to keep track from how long is running. > And we can replace the callQueue with a priorityQueue. In this way we can > deprioritize long-running scans, the longer a scan request lives the less > priority it gets. -- This message was sent by Atlassian JIRA (v6.2#6252)