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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/25265/
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(Updated Sept. 2, 2014, 7:07 p.m.)


Review request for Ambari and Dmitro Lisnichenko.


Bugs: AMBARI-7119
    https://issues.apache.org/jira/browse/AMBARI-7119


Repository: ambari


Description
-------

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


Diffs (updated)
-----

  
ambari-server/src/main/java/org/apache/ambari/server/upgrade/UpgradeCatalog170.java
 c2dec57 
  
ambari-server/src/main/resources/stacks/HDP/1.3.2/hooks/after-INSTALL/scripts/params.py
 a4fb172 
  
ambari-server/src/main/resources/stacks/HDP/1.3.2/services/HDFS/configuration/hadoop-env.xml
 a8e6243 
  
ambari-server/src/main/resources/stacks/HDP/1.3.2/services/HDFS/configuration/hdfs-log4j.xml
 1366c5d 
  
ambari-server/src/main/resources/stacks/HDP/1.3.2/services/HDFS/package/scripts/params.py
 7d23680 
  
ambari-server/src/main/resources/stacks/HDP/2.0.6/hooks/after-INSTALL/scripts/params.py
 3fe5905 
  
ambari-server/src/main/resources/stacks/HDP/2.0.6/services/HDFS/configuration/hadoop-env.xml
 817be91 
  
ambari-server/src/main/resources/stacks/HDP/2.0.6/services/HDFS/configuration/hdfs-log4j.xml
 976a3c2 
  
ambari-server/src/main/resources/stacks/HDP/2.0.6/services/HDFS/package/scripts/params.py
 ee6b64f 
  
ambari-server/src/test/java/org/apache/ambari/server/upgrade/UpgradeCatalog170Test.java
 cc97114 
  ambari-web/app/data/HDP2/site_properties.js 3ba0246 
  ambari-web/app/data/site_properties.js 1f6bb63 

Diff: https://reviews.apache.org/r/25265/diff/


Testing
-------

mvn clean test


Thanks,

Andrew Onischuk

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