Kuldeep Kulkarni created HDFS-7534:
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Summary: how to enable namenode GC logging
Key: HDFS-7534
URL: https://issues.apache.org/jira/browse/HDFS-7534
Project: Hadoop HDFS
Issue Type: Task
Reporter: Kuldeep Kulkarni
Hey Team,
Could you please let me know how to enable GC logging for hadoop namenode. ?
I tried below method :
modified HADOOP_NAMENODE_OPTS in /etc/hadoop/conf/hadoop-env.sh as below and restarted namenode
(HA is configured on cdh 4.7.0 )
*before modification :*
{code}
export HADOOP_NAMENODE_OPTS="-Dhadoop.security.logger=${HADOOP_SECURITY_LOGGER:-INFO,RFAS}
-Dhdfs.audit.logger=${HDFS_AUDIT_LOGGER:-INFO,NullAppender} $HADOOP_NAMENODE_OPTS";
{code}
*After modification:*
{code}
export HADOOP_NAMENODE_OPTS="-Xloggc:%HADOOP_LOG_DIR%/gc-namenode.log -verbose:gc -XX:+PrintGCDetails
-XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps -Dhadoop.security.logger=${HADOOP_SECURITY_LOGGER:-INFO,RFAS}
-Dhdfs.audit.logger=${HDFS_AUDIT_LOGGER:-INFO,NullAppender} $HADOOP_NAMENODE_OPTS";
{code}
this method is not working :(
could you please help me on this.
Thanks,
Kuldeep
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