Post Java 1.8 upgrade: Stderr writes warning w.r.t Permgen depreciated. "Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=512m; support was removed in 8.0" how to suppress this?

[#1]

After updating java version to 1.8 . we constantly see the permgen depreciated warning for every hadoop command that is being run. How can I suppress this. the perm gen value in my hadoop-env file is min 128m and max 256m . Not sure where to modify the value that occurs in the warning 512m.

Regards,

Sundar

[#2 · Accepted solution]

Which version of HDP are you running? The hadoop command environment settings are added in the hadoop environment

hadoop-env template in ambari in Advanced core-site.xml under HDFS

HADOOP_OPTS and HADOOP_CLIENT_OPTS

Here I have the sections of HDP 2.3.4. Using Java 1.8 perhaps you can compare them with yours? I see one line that has the settings. But its in the if java version < 8 section of the template.

export HADOOP_CLIENT_OPTS="-Xmx${HADOOP_HEAPSIZE}m -XX:MaxPermSize=512m $HADOOP_CLIENT_OPTS"

# Set Hadoop-specific environment variables here.


# The only required environment variable is JAVA_HOME.  All others are
# optional.  When running a distributed configuration it is best to
# set JAVA_HOME in this file, so that it is correctly defined on
# remote nodes.


# The java implementation to use.  Required.
export JAVA_HOME={{java_home}}
export HADOOP_HOME_WARN_SUPPRESS=1


# Hadoop home directory
export HADOOP_HOME=${HADOOP_HOME:-{{hadoop_home}}}


# Hadoop Configuration Directory


{# this is different for HDP1 #}
# Path to jsvc required by secure HDP 2.0 datanode
export JSVC_HOME={{jsvc_path}}




# The maximum amount of heap to use, in MB. Default is 1000.
export HADOOP_HEAPSIZE="{{hadoop_heapsize}}"


export HADOOP_NAMENODE_INIT_HEAPSIZE="-Xms{{namenode_heapsize}}"


# Extra Java runtime options.  Empty by default.
export HADOOP_OPTS="-Djava.net.preferIPv4Stack=true ${HADOOP_OPTS}"


# Command specific options appended to HADOOP_OPTS when specified
HADOOP_JOBTRACKER_OPTS="-server -XX:ParallelGCThreads=8 -XX:+UseConcMarkSweepGC -XX:ErrorFile={{hdfs_log_dir_prefix}}/$USER/hs_err_pid%p.log -XX:NewSize={{jtnode_opt_newsize}} -XX:MaxNewSize={{jtnode_opt_maxnewsize}} -Xloggc:{{hdfs_log_dir_prefix}}/$USER/gc.log-`date +'%Y%m%d%H%M'` -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps -Xmx{{jtnode_heapsize}} -Dhadoop.security.logger=INFO,DRFAS -Dmapred.audit.logger=INFO,MRAUDIT -Dhadoop.mapreduce.jobsummary.logger=INFO,JSA ${HADOOP_JOBTRACKER_OPTS}"


HADOOP_TASKTRACKER_OPTS="-server -Xmx{{ttnode_heapsize}} -Dhadoop.security.logger=ERROR,console -Dmapred.audit.logger=ERROR,console ${HADOOP_TASKTRACKER_OPTS}"


{% if java_version < 8 %}
SHARED_HADOOP_NAMENODE_OPTS="-server -XX:ParallelGCThreads=8 -XX:+UseConcMarkSweepGC -XX:ErrorFile={{hdfs_log_dir_prefix}}/$USER/hs_err_pid%p.log -XX:NewSize={{namenode_opt_newsize}} -XX:MaxNewSize={{namenode_opt_maxnewsize}} -XX:PermSize={{namenode_opt_permsize}} -XX:MaxPermSize={{namenode_opt_maxpermsize}} -Xloggc:{{hdfs_log_dir_prefix}}/$USER/gc.log-`date +'%Y%m%d%H%M'` -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps -Xms{{namenode_heapsize}} -Xmx{{namenode_heapsize}} -Dhadoop.security.logger=INFO,DRFAS -Dhdfs.audit.logger=INFO,DRFAAUDIT"
export HADOOP_NAMENODE_OPTS="${SHARED_HADOOP_NAMENODE_OPTS} -XX:OnOutOfMemoryError=\"/usr/hdp/current/hadoop-hdfs-namenode/bin/kill-name-node\" -Dorg.mortbay.jetty.Request.maxFormContentSize=-1 ${HADOOP_NAMENODE_OPTS}"
export HADOOP_DATANODE_OPTS="-server -XX:ParallelGCThreads=4 -XX:+UseConcMarkSweepGC -XX:ErrorFile=/var/log/hadoop/$USER/hs_err_pid%p.log -XX:NewSize=200m -XX:MaxNewSize=200m -XX:PermSize=128m -XX:MaxPermSize=256m -Xloggc:/var/log/hadoop/$USER/gc.log-`date +'%Y%m%d%H%M'` -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps -Xms{{dtnode_heapsize}} -Xmx{{dtnode_heapsize}} -Dhadoop.security.logger=INFO,DRFAS -Dhdfs.audit.logger=INFO,DRFAAUDIT ${HADOOP_DATANODE_OPTS}"


export HADOOP_SECONDARYNAMENODE_OPTS="${SHARED_HADOOP_NAMENODE_OPTS} -XX:OnOutOfMemoryError=\"/usr/hdp/current/hadoop-hdfs-secondarynamenode/bin/kill-secondary-name-node\" ${HADOOP_SECONDARYNAMENODE_OPTS}"


# The following applies to multiple commands (fs, dfs, fsck, distcp etc)
export HADOOP_CLIENT_OPTS="-Xmx${HADOOP_HEAPSIZE}m -XX:MaxPermSize=512m $HADOOP_CLIENT_OPTS"


{% else %}
SHARED_HADOOP_NAMENODE_OPTS="-server -XX:ParallelGCThreads=8 -XX:+UseConcMarkSweepGC -XX:ErrorFile={{hdfs_log_dir_prefix}}/$USER/hs_err_pid%p.log -XX:NewSize={{namenode_opt_newsize}} -XX:MaxNewSize={{namenode_opt_maxnewsize}} -Xloggc:{{hdfs_log_dir_prefix}}/$USER/gc.log-`date +'%Y%m%d%H%M'` -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps -Xms{{namenode_heapsize}} -Xmx{{namenode_heapsize}} -Dhadoop.security.logger=INFO,DRFAS -Dhdfs.audit.logger=INFO,DRFAAUDIT"
export HADOOP_NAMENODE_OPTS="${SHARED_HADOOP_NAMENODE_OPTS} -XX:OnOutOfMemoryError=\"/usr/hdp/current/hadoop-hdfs-namenode/bin/kill-name-node\" -Dorg.mortbay.jetty.Request.maxFormContentSize=-1 ${HADOOP_NAMENODE_OPTS}"
export HADOOP_DATANODE_OPTS="-server -XX:ParallelGCThreads=4 -XX:+UseConcMarkSweepGC -XX:ErrorFile=/var/log/hadoop/$USER/hs_err_pid%p.log -XX:NewSize=200m -XX:MaxNewSize=200m -Xloggc:/var/log/hadoop/$USER/gc.log-`date +'%Y%m%d%H%M'` -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps -Xms{{dtnode_heapsize}} -Xmx{{dtnode_heapsize}} -Dhadoop.security.logger=INFO,DRFAS -Dhdfs.audit.logger=INFO,DRFAAUDIT ${HADOOP_DATANODE_OPTS}"


export HADOOP_SECONDARYNAMENODE_OPTS="${SHARED_HADOOP_NAMENODE_OPTS} -XX:OnOutOfMemoryError=\"/usr/hdp/current/hadoop-hdfs-secondarynamenode/bin/kill-secondary-name-node\" ${HADOOP_SECONDARYNAMENODE_OPTS}"


# The following applies to multiple commands (fs, dfs, fsck, distcp etc)
export HADOOP_CLIENT_OPTS="-Xmx${HADOOP_HEAPSIZE}m $HADOOP_CLIENT_OPTS"
{% endif %}


HADOOP_NFS3_OPTS="-Xmx{{nfsgateway_heapsize}}m -Dhadoop.security.logger=ERROR,DRFAS ${HADOOP_NFS3_OPTS}"
HADOOP_BALANCER_OPTS="-server -Xmx{{hadoop_heapsize}}m ${HADOOP_BALANCER_OPTS}"




# On secure datanodes, user to run the datanode as after dropping privileges
export HADOOP_SECURE_DN_USER=${HADOOP_SECURE_DN_USER:-{{hadoop_secure_dn_user}}}


# Extra ssh options.  Empty by default.
export HADOOP_SSH_OPTS="-o ConnectTimeout=5 -o SendEnv=HADOOP_CONF_DIR"


# Where log files are stored.  $HADOOP_HOME/logs by default.
export HADOOP_LOG_DIR={{hdfs_log_dir_prefix}}/$USER


# History server logs
export HADOOP_MAPRED_LOG_DIR={{mapred_log_dir_prefix}}/$USER


# Where log files are stored in the secure data environment.
export HADOOP_SECURE_DN_LOG_DIR={{hdfs_log_dir_prefix}}/$HADOOP_SECURE_DN_USER


# File naming remote slave hosts.  $HADOOP_HOME/conf/slaves by default.
# export HADOOP_SLAVES=${HADOOP_HOME}/conf/slaves


# host:path where hadoop code should be rsync'd from.  Unset by default.
# export HADOOP_MASTER=master:/home/$USER/src/hadoop


# Seconds to sleep between slave commands.  Unset by default.  This
# can be useful in large clusters, where, e.g., slave rsyncs can
# otherwise arrive faster than the master can service them.
# export HADOOP_SLAVE_SLEEP=0.1


# The directory where pid files are stored. /tmp by default.
export HADOOP_PID_DIR={{hadoop_pid_dir_prefix}}/$USER
export HADOOP_SECURE_DN_PID_DIR={{hadoop_pid_dir_prefix}}/$HADOOP_SECURE_DN_USER


# History server pid
export HADOOP_MAPRED_PID_DIR={{mapred_pid_dir_prefix}}/$USER


YARN_RESOURCEMANAGER_OPTS="-Dyarn.server.resourcemanager.appsummary.logger=INFO,RMSUMMARY"


# A string representing this instance of hadoop. $USER by default.
export HADOOP_IDENT_STRING=$USER


# The scheduling priority for daemon processes.  See 'man nice'.


# export HADOOP_NICENESS=10


# Use libraries from standard classpath
JAVA_JDBC_LIBS=""


#Add libraries required by mysql connector
for jarFile in `ls /usr/share/java/*mysql* 2>/dev/null`
do
  JAVA_JDBC_LIBS=${JAVA_JDBC_LIBS}:$jarFile
done


# Add libraries required by oracle connector
for jarFile in `ls /usr/share/java/*ojdbc* 2>/dev/null`
do
  JAVA_JDBC_LIBS=${JAVA_JDBC_LIBS}:$jarFile
done


export HADOOP_CLASSPATH=${HADOOP_CLASSPATH}:${JAVA_JDBC_LIBS}


# Setting path to hdfs command line
export HADOOP_LIBEXEC_DIR={{hadoop_libexec_dir}}


# Mostly required for hadoop 2.0
export JAVA_LIBRARY_PATH=${JAVA_LIBRARY_PATH}


export HADOOP_OPTS="-Dhdp.version=$HDP_VERSION $HADOOP_OPTS"
    
{% if is_datanode_max_locked_memory_set %}
# Fix temporary bug, when ulimit from conf files is not picked up, without full relogin. 
# Makes sense to fix only when runing DN as root 
if [ "$command" == "datanode" ] && [ "$EUID" -eq 0 ] && [ -n "$HADOOP_SECURE_DN_USER" ]; then
  ulimit -l {{datanode_max_locked_memory}}
fi
{% endif %}