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From "Andrew Onischuk (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (AMBARI-7119) log4j does not get used by hadoop as settings are present in hadoop.config.sh
Date Tue, 02 Sep 2014 19:09:21 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-7119?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Andrew Onischuk resolved AMBARI-7119.
-------------------------------------
    Resolution: Fixed

Committed to trunk

> log4j does not get used by hadoop as settings are present in hadoop.config.sh
> -----------------------------------------------------------------------------
>
>                 Key: AMBARI-7119
>                 URL: https://issues.apache.org/jira/browse/AMBARI-7119
>             Project: Ambari
>          Issue Type: Bug
>            Reporter: Andrew Onischuk
>            Assignee: Andrew Onischuk
>             Fix For: 1.7.0
>
>
> PROBLEM: log4j settings made via Ambari update the log4j file but do not take
> any affect when restarting HDFS. It seems there are hardcoded settings in
> /usr/lib/hadoop/libexec/hadoop-config.sh such as this at line 221:
> HADOOP_OPTS="$HADOOP_OPTS -Dhadoop.root.logger=$
> {HADOOP_ROOT_LOGGER:-INFO,console}
> "
> BUSINESS IMPACT: Customers have to change core files or set environment
> variables explicitly by setting up a profile script
> STEPS TO REPRODUCE: Log in to Ambari and change log4j properties such that
> hadoop.root.logger=INFO,DRFA. The log4j file is updated in /etc/hadoop/conf.
> Restart the HDFS service. Do a ps -ef | grep <PID> for the namenode. The
> process shows duplicate entries for several properties and does not show the
> logging change. Here is the duplication and incorrect root logger setting seen
> locally in testing:
> hdfs 4304 1 14 07:26 ? 00:00:10 /usr/jdk64/jdk1.7.0_45/bin/java
> -Dproc_namenode -Xmx1024m -Djava.net.preferIPv4Stack=true
> -Djava.net.preferIPv4Stack=true -Djava.net.preferIPv4Stack=true
> -Dhadoop.log.dir=/var/log/hadoop/hdfs -Dhadoop.log.file=hadoop.log
> -Dhadoop.home.dir=/usr/lib/hadoop -Dhadoop.id.str=hdfs
> -Dhadoop.root.logger=INFO,console
> -Djava.library.path=:/usr/lib/hadoop/lib/native/Linux-
> amd64-64:/usr/lib/hadoop/lib/native -Dhadoop.policy.file=hadoop-policy.xml
> -Djava.net.preferIPv4Stack=true -Dhadoop.log.dir=/var/log/hadoop/hdfs
> -Dhadoop.log.file=hadoop-hdfs-namenode-sandbox.hortonworks.com.log
> -Dhadoop.home.dir=/usr/lib/hadoop -Dhadoop.id.str=hdfs
> -Dhadoop.root.logger=INFO,RFA -Djava.library.path=:/usr/lib/hadoop/lib/native
> /Linux-amd64-64:/usr/lib/hadoop/lib/native:/usr/lib/hadoop/lib/native/Linux-
> amd64-64:/usr/lib/hadoop/lib/native/Linux-amd64-64:/usr/lib/hadoop/lib/native
> -Dhadoop.policy.file=hadoop-policy.xml -Djava.net.preferIPv4Stack=true -server
> -XX:ParallelGCThreads=8 -XX:+UseConcMarkSweepGC
> -XX:ErrorFile=/var/log/hadoop/hdfs/hs_err_pid%p.log -XX:NewSize=100m
> -XX:MaxNewSize=50m -Xloggc:/var/log/hadoop/hdfs/gc.log-201407140726
> -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps
> -Xms1024m -Xmx1024m -Dhadoop.security.logger=INFO,DRFAS
> -Dhdfs.audit.logger=INFO,DRFAAUDIT -server -XX:ParallelGCThreads=8
> -XX:+UseConcMarkSweepGC -XX:ErrorFile=/var/log/hadoop/hdfs/hs_err_pid%p.log
> -XX:NewSize=100m -XX:MaxNewSize=50m
> -Xloggc:/var/log/hadoop/hdfs/gc.log-201407140726 -verbose:gc
> -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps -Xms1024m
> -Xmx1024m -Dhadoop.security.logger=INFO,DRFAS
> -Dhdfs.audit.logger=INFO,DRFAAUDIT -server -XX:ParallelGCThreads=8
> -XX:+UseConcMarkSweepGC -XX:ErrorFile=/var/log/hadoop/hdfs/hs_err_pid%p.log
> -XX:NewSize=100m -XX:MaxNewSize=50m
> -Xloggc:/var/log/hadoop/hdfs/gc.log-201407140726 -verbose:gc
> -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps -Xms1024m
> -Xmx1024m -Dhadoop.security.logger=INFO,DRFA
> ACTUAL BEHAVIOR: log4j changes made in Ambari do not persist in process. It
> seems there are values set in /usr/lib/hadoop/libexec/hadoop-config.sh that
> override no matter what. There is also duplication of settings, assuming this
> is from hadoop-config.sh as well.
> EXPECTED BEHAVIOR: Settings made in Ambari should be persisted and used by the
> process.
> SUPPORT ANALYSIS: Support made changes to log4j in Ambari on a test cluster
> and they were not used



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