huozhanfeng created YARN-2231: --------------------------------- Summary: Provide feature to limit MRJob's stdout/stderr size Key: YARN-2231 URL: https://issues.apache.org/jira/browse/YARN-2231 Project: Hadoop YARN Issue Type: Improvement Components: log-aggregation, nodemanager Affects Versions: 2.3.0 Environment: CentOS release 5.8 (Final) Reporter: huozhanfeng
When a MRJob print too much stdout or stderr log, the disk will be filled. Now it has influence our platform management. I have improved org.apache.hadoop.mapred.MapReduceChildJVM.java(come from@org.apache.hadoop.mapred.TaskLog) to generate the execute cmd as follows: exec /bin/bash -c "( $JAVA_HOME/bin/java -Djava.net.preferIPv4Stack=true -Dhadoop.metrics.log.level=WARN -Xmx1024m -Djava.io.tmpdir=$PWD/tmp -Dlog4j.configuration=container-log4j.properties -Dyarn.app.container.log.dir=/logs/userlogs/application_1403930653208_0003/container_1403930653208_0003_01_000002 -Dyarn.app.container.log.filesize=10240 -Dhadoop.root.logger=DEBUG,CLA org.apache.hadoop.mapred.YarnChild 10.106.24.108 53911 attempt_1403930653208_0003_m_000000_0 2 | tail -c 102 >/logs/userlogs/application_1403930653208_0003/container_1403930653208_0003_01_000002/stdout ; exit $PIPESTATUS ) 2>&1 | tail -c 10240 >/logs/userlogs/application_1403930653208_0003/container_1403930653208_0003_01_000002/stderr ; exit $PIPESTATUS " But it doesn't take effect. And then, when I use "export YARN_NODEMANAGER_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,address=8788,server=y,suspend=y" for debuging NodeManager, I find when I set the BreakPoints at org.apache.hadoop.util.Shell(line 450:process = builder.start()) and org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch(line 161:List<String> newCmds = new ArrayList<String>(command.size())) the cmd will work. I doubt there's concurrency problem caused with pipe shell will not perform properly. It matters, and I need your help. my email: huozhanf...@gmail.com thanks -- This message was sent by Atlassian JIRA (v6.2#6252)