Hello community, I am trying to use hadoop 1.1.0 on a SLES 11 (zLinux) running on IBM S390. The java provided is "java-s390x-60" 64Bit. While trying to format the namenode I got the following error:
$:/opt/flume_hadoop/hadoop-1.1.0> bin/hadoop namenode -format 12/12/11 14:16:31 INFO namenode.NameNode: STARTUP_MSG: /************************************************************ STARTUP_MSG: Starting NameNode STARTUP_MSG: host = xxxxxxxxx STARTUP_MSG: args = [-format] STARTUP_MSG: version = 1.1.0 STARTUP_MSG: build = https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.1 -r 1394289; compiled by 'hortonfo' on Thu Oct 4 22:06:49 UTC 2012 ************************************************************/ Re-format filesystem in /opt/hadoop_data/name ? (Y or N) Y 12/12/11 14:16:34 INFO util.GSet: VM type = 64-bit 12/12/11 14:16:34 INFO util.GSet: 2% max memory = 20.0 MB 12/12/11 14:16:34 INFO util.GSet: capacity = 2^21 = 2097152 entries 12/12/11 14:16:34 INFO util.GSet: recommended=2097152, actual=2097152 12/12/11 14:16:34 ERROR security.UserGroupInformation: Unable to find JAAS classes:com.ibm.security.auth.LinuxPrincipal 12/12/11 14:16:35 ERROR namenode.NameNode: java.io.IOException: failure to login at org.apache.hadoop.security.UserGroupInformation.getLoginUser(UserGroupInformation.java:501) at org.apache.hadoop.security.UserGroupInformation.getCurrentUser(UserGroupInformation.java:463) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.setConfigurationParameters(FSNamesystem.java:491) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:480) at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:1198) at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1391) at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1412) Caused by: javax.security.auth.login.LoginException: java.lang.NullPointerException: invalid null Class provided at javax.security.auth.Subject.getPrincipals(Subject.java:809) at org.apache.hadoop.security.UserGroupInformation$HadoopLoginModule.getCanonicalUser(UserGroupInformation.java:86) at org.apache.hadoop.security.UserGroupInformation$HadoopLoginModule.commit(UserGroupInformation.java:123) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:48) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:600) at javax.security.auth.login.LoginContext.invoke(LoginContext.java:795) at javax.security.auth.login.LoginContext.access$000(LoginContext.java:209) at javax.security.auth.login.LoginContext$5.run(LoginContext.java:732) at java.security.AccessController.doPrivileged(AccessController.java:284) at javax.security.auth.login.LoginContext.invokeCreatorPriv(LoginContext.java:729) at javax.security.auth.login.LoginContext.login(LoginContext.java:600) at org.apache.hadoop.security.UserGroupInformation.getLoginUser(UserGroupInformation.java:482) at org.apache.hadoop.security.UserGroupInformation.getCurrentUser(UserGroupInformation.java:463) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.setConfigurationParameters(FSNamesystem.java:491) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:480) at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:1198) at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1391) at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1412) at javax.security.auth.login.LoginContext.invoke(LoginContext.java:898) at javax.security.auth.login.LoginContext.access$000(LoginContext.java:209) at javax.security.auth.login.LoginContext$5.run(LoginContext.java:732) at java.security.AccessController.doPrivileged(AccessController.java:284) at javax.security.auth.login.LoginContext.invokeCreatorPriv(LoginContext.java:729) at javax.security.auth.login.LoginContext.login(LoginContext.java:600) at org.apache.hadoop.security.UserGroupInformation.getLoginUser(UserGroupInformation.java:482) ... 6 more 12/12/11 14:16:35 INFO namenode.NameNode: SHUTDOWN_MSG: /************************************************************ SHUTDOWN_MSG: Shutting down NameNode at xxxxxxxxxxxxxxxx ************************************************************/ $:/opt/flume_hadoop/hadoop-1.1.0> Question: 1)@developer Are you aware of this behavior? 2)It there a way to overcome this problem with a workaround? 3)IS it a security issue? --> I was able to issue ssh on localhost without error.
