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TezQA commented on TEZ-3126: ---------------------------- {color:red}-1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12789063/TEZ-3126.2.patch against master revision f38e23c. {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:red}-1 tests included{color}. The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch. {color:green}+1 javac{color}. The applied patch does not increase the total number of javac compiler warnings. {color:green}+1 javadoc{color}. There were no new javadoc warning messages. {color:green}+1 findbugs{color}. The patch does not introduce any new Findbugs (version 3.0.1) warnings. {color:green}+1 release audit{color}. The applied patch does not increase the total number of release audit warnings. {color:red}-1 core tests{color}. The patch failed these unit tests in : org.apache.tez.test.TestFaultTolerance Test results: https://builds.apache.org/job/PreCommit-TEZ-Build/1497//testReport/ Console output: https://builds.apache.org/job/PreCommit-TEZ-Build/1497//console This message is automatically generated. > Log reason for not reducing parallelism > --------------------------------------- > > Key: TEZ-3126 > URL: https://issues.apache.org/jira/browse/TEZ-3126 > Project: Apache Tez > Issue Type: Bug > Reporter: Jonathan Eagles > Assignee: Jonathan Eagles > Priority: Critical > Attachments: TEZ-3126.1.patch, TEZ-3126.2.patch > > > For example, when reducing parallelism from 36 to 22. The basePartitionRange > will be 1 and will not re-configure the vertex. > {code:java|title=ShuffleVertexManager#determineParallelismAndApply|borderStyle=dashed|bgColor=lightgrey} > int desiredTaskParallelism = > (int)( > (expectedTotalSourceTasksOutputSize+desiredTaskInputDataSize-1)/ > desiredTaskInputDataSize); > if(desiredTaskParallelism < minTaskParallelism) { > desiredTaskParallelism = minTaskParallelism; > } > > if(desiredTaskParallelism >= currentParallelism) { > return true; > } > > // most shufflers will be assigned this range > basePartitionRange = currentParallelism/desiredTaskParallelism; > > if (basePartitionRange <= 1) { > // nothing to do if range is equal 1 partition. shuffler does it by > default > return true; > } > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)