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https://issues.apache.org/jira/browse/HDFS-7657?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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prophy Yan resolved HDFS-7657.
------------------------------
    Resolution: Fixed

this is the jsvc problem, i build the jsvc from commons-daemon, it resolved.

> failed start datanode in secure mode with class not found err, but jar is in 
> classpath
> --------------------------------------------------------------------------------------
>
>                 Key: HDFS-7657
>                 URL: https://issues.apache.org/jira/browse/HDFS-7657
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>    Affects Versions: 2.6.0
>         Environment: centos 6.5
> hadoop-2.6.0
>            Reporter: prophy Yan
>
> i use the root to start datanode in secure mode, but is doesn't start
> in jsvc.err ,the err is :
> "Service exit with a return value of 3
> java.lang.ClassNotFoundException: 
> org.apache.hadoop.hdfs.server.datanode.SecureDataNodeStarter"
> but the jar file is in the classpath
> i set the $hadoop_home/bin/hdfs to debug mode, it show the command is:
> /usr/bin/jsvc -Dproc_datanode -outfile /var/log/hadoop//jsvc.out -errfile 
> /var/log/hadoop//jsvc.err -pidfile /var/run/hadoop/hadoop_secure_dn.pid 
> -nodetach -user hdfs -cp 
> '/usr/lib/hadoop/commons-daemon-1.0.15.jar:/etc/hadoop:/usr/lib/hadoop/share/hadoop/common/lib/*:/usr/lib/hadoop/share/hadoop/common/*:/usr/lib/hadoop/share/hadoop/hdfs:/usr/lib/hadoop/share/hadoop/hdfs/lib/*:/usr/lib/hadoop/share/hadoop/hdfs/*:/usr/lib/hadoop/share/hadoop/yarn/lib/*:/usr/lib/hadoop/share/hadoop/yarn/*:/usr/lib/hadoop/share/hadoop/mapreduce/lib/*:/usr/lib/hadoop/share/hadoop/mapreduce/*:/contrib/capacity-scheduler/*.jar'
>  -Xmx1000m -Djava.net.preferIPv4Stack=true -Dhadoop.log.dir=/var/log/hadoop 
> -Dhadoop.log.file=hadoop.log -Dhadoop.home.dir=/usr/lib/hadoop 
> -Dhadoop.id.str=root -Dhadoop.root.logger=INFO,console 
> -Djava.library.path=/usr/lib/hadoop/lib/native 
> -Dhadoop.policy.file=hadoop-policy.xml -Djava.net.preferIPv4Stack=true 
> -Dhadoop.log.dir=/var/log/hadoop/ -Dhadoop.id.str=hdfs -jvm server 
> -Dhadoop.security.logger=ERROR,RFAS 
> -Dhadoop.security.logger=INFO,NullAppender 
> org.apache.hadoop.hdfs.server.datanode.SecureDataNodeStarter
> i add "for f in /usr/lib/hadoop/share/hadoop/common/*.jar; do
>   export HADOOP_CLASSPATH=$HADOOP_CLASSPATH:$f
> done
> .......,and so on
> "  to the hadoop-env.sh, then the datanode can start
> so is this mean the jsvc can not recognize the -cp 'hadoop_home/lib/*'?
> it just can recognize the -cp 'hadoop_home/lib/hadoop-hdfs.jar', like this?



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