yarn-daemon.sh unconditionnaly sets yarn.root.logger ----------------------------------------------------
Key: MAPREDUCE-3408 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3408 Project: Hadoop Map/Reduce Issue Type: Bug Components: mrv2, nodemanager, resourcemanager Affects Versions: 0.23.0, 0.23.1 Reporter: Bruno Mahé Assignee: Bruno Mahé yarn-daemon.sh unconditionnaly sets yarn.root.logger which then prevent any override from happening. >From ./hadoop-mapreduce-project/hadoop-yarn/bin/yarn-daemon.sh: > export YARN_ROOT_LOGGER="INFO,DRFA" > export YARN_JHS_LOGGER="INFO,JSA" and then yarn-daemon.sh will call "$YARN_HOME"/bin/yarn which does the following: > YARN_OPTS="$YARN_OPTS -Dhadoop.root.logger=${YARN_ROOT_LOGGER:-INFO,console}" > YARN_OPTS="$YARN_OPTS -Dyarn.root.logger=${YARN_ROOT_LOGGER:-INFO,console}" This has at least 2 issues: * I cannot override hadoop.root.logger when using the yarn-daemon.sh script * I cannot have different values for hadoop.root.logger and yarn.root.logger I currently see two different ways to proceed forward: 1/ Make the script yarn-daemon.sh only sets a default value for YARN_ROOT_LOGGER if this variable is not defined 2/ Remove the quoted code from yarn-daemon.sh since yarn already does something similar 3/ Entirely remove that chunk and let people define their logging however they want through some properties files (see log4j.properties in the conf directories for instance) I would also use the variable HADOOP_ROOT_LOGGER for hadoop.root.logger if either option 1/ or 2/ would be taken. I don't really have any preference toward any of these solutions. What would you recommend? What is the Apache Hadoop way for this matter? Note: This is probably happening as well for the other daemons, and I will take a look at it once this issue is resolved. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira