[enggusr@node2 0]$ ps -ef | grep hadoop | grep -P  'namenode|datanode|tasktracker|jobtracker'
hdfs      1996     1  1 07:24 ?        00:00:09 /usr/jdk64/jdk1.8.0_60/bin/java -Dproc_secondarynamenode -Xmx1024m -Dhdp.version=2.3.4.0-3485 -Djava.net.preferIPv4Stack=true -Dhdp.version= -Djava.net.preferIPv4Stack=true -Dhdp.version= -Djava.net.preferIPv4Stack=true -Dhadoop.log.dir=/var/log/hadoop/hdfs -Dhadoop.log.file=hadoop.log -Dhadoop.home.dir=/usr/hdp/2.3.4.0-3485/hadoop -Dhadoop.id.str=hdfs -Dhadoop.root.logger=INFO,console -Djava.library.path=:/usr/hdp/2.3.4.0-3485/hadoop/lib/native/Linux-amd64-64:/usr/hdp/2.3.4.0-3485/hadoop/lib/native -Dhadoop.policy.file=hadoop-policy.xml -Djava.net.preferIPv4Stack=true -Dhdp.version=2.3.4.0-3485 -Dhadoop.log.dir=/var/log/hadoop/hdfs -Dhadoop.log.file=hadoop-hdfs-secondarynamenode-node2.dtitsupport247.net.log -Dhadoop.home.dir=/usr/hdp/2.3.4.0-3485/hadoop -Dhadoop.id.str=hdfs -Dhadoop.root.logger=INFO,RFA -Djava.library.path=:/usr/hdp/2.3.4.0-3485/hadoop/lib/native/Linux-amd64-64:/usr/hdp/2.3.4.0-3485/hadoop/lib/native:/usr/hdp/2.3.4.0-3485/hadoop/lib/native/Linux-amd64-64:/usr/hdp/2.3.4.0-3485/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=200m -XX:MaxNewSize=200m -Xloggc:/var/log/hadoop/hdfs/gc.log-201602220724 -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps -Xms1024m -Xmx1024m -Dhadoop.security.logger=INFO,DRFAS -Dhdfs.audit.logger=INFO,DRFAAUDIT -XX:OnOutOfMemoryError="/usr/hdp/current/hadoop-hdfs-secondarynamenode/bin/kill-secondary-name-node" -server -XX:ParallelGCThreads=8 -XX:+UseConcMarkSweepGC -XX:ErrorFile=/var/log/hadoop/hdfs/hs_err_pid%p.log -XX:NewSize=200m -XX:MaxNewSize=200m -Xloggc:/var/log/hadoop/hdfs/gc.log-201602220724 -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps -Xms1024m -Xmx1024m -Dhadoop.security.logger=INFO,DRFAS -Dhdfs.audit.logger=INFO,DRFAAUDIT -XX:OnOutOfMemoryError="/usr/hdp/current/hadoop-hdfs-secondarynamenode/bin/kill-secondary-name-node" -server -XX:ParallelGCThreads=8 -XX:+UseConcMarkSweepGC -XX:ErrorFile=/var/log/hadoop/hdfs/hs_err_pid%p.log -XX:NewSize=200m -XX:MaxNewSize=200m -Xloggc:/var/log/hadoop/hdfs/gc.log-201602220724 -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps -Xms1024m -Xmx1024m -Dhadoop.security.logger=INFO,DRFAS -Dhdfs.audit.logger=INFO,DRFAAUDIT -XX:OnOutOfMemoryError="/usr/hdp/current/hadoop-hdfs-secondarynamenode/bin/kill-secondary-name-node" -Dhadoop.security.logger=INFO,RFAS org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode