Hello,
i have recently installed Hadoop on my and a second machine in order to
test the setup and develop little programs locally before deploying them
to the cluster. I stumbled over several difficulties, which i could fix
with some internet research. But once again im stuck and i think i can
nail the problem down:
When Hadoop evaluates the config files in /etc/hadoop it does not have
any default values for all the variables used within:
\________ First Error:
hadoop namenode -format
Warning: $HADOOP_HOME is deprecated.
12/04/27 11:31:41 INFO namenode.NameNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG: host = ubuntu/127.0.1.1
STARTUP_MSG: args = [-format]
STARTUP_MSG: version = 1.0.1
STARTUP_MSG: build =
https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.0 -r
1243785; compiled by 'hortonfo' on Tue Feb 14 08:13:52 UTC 2012
************************************************************/
12/04/27 11:31:41 INFO util.GSet: VM type = 32-bit
12/04/27 11:31:41 INFO util.GSet: 2% max memory = 2.475 MB
12/04/27 11:31:41 INFO util.GSet: capacity = 2^19 = 524288 entries
12/04/27 11:31:41 INFO util.GSet: recommended=524288, actual=524288
12/04/27 11:31:41 ERROR namenode.NameNode:
java.lang.IllegalArgumentException: Invalid attribute value for
hadoop.security.authentication of ${SECURITY_TYPE}
at
org.apache.hadoop.security.UserGroupInformation.initialize(UserGroupInformation.java:202)
at
org.apache.hadoop.security.UserGroupInformation.ensureInitialized(UserGroupInformation.java:187)
at
org.apache.hadoop.security.UserGroupInformation.isSecurityEnabled(UserGroupInformation.java:239)
at
org.apache.hadoop.security.UserGroupInformation.getLoginUser(UserGroupInformation.java:438)
at
org.apache.hadoop.security.UserGroupInformation.getCurrentUser(UserGroupInformation.java:424)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.setConfigurationParameters(FSNamesystem.java:473)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:462)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:1162)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1271)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1288)
12/04/27 11:31:41 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at ubuntu/127.0.1.1
************************************************************/
\_________ Solution
I removed the variable and exchanged it with the value "simple".
Then the next error occurred:
\_________ Error 2
hadoop namenode -format
Warning: $HADOOP_HOME is deprecated.
12/04/27 11:46:33 INFO namenode.NameNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG: host = ubuntu/127.0.1.1
STARTUP_MSG: args = [-format]
STARTUP_MSG: version = 1.0.1
STARTUP_MSG: build =
https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.0 -r
1243785; compiled by 'hortonfo' on Tue Feb 14 08:13:52 UTC 2012
************************************************************/
12/04/27 11:46:33 INFO util.GSet: VM type = 32-bit
12/04/27 11:46:33 INFO util.GSet: 2% max memory = 2.475 MB
12/04/27 11:46:33 INFO util.GSet: capacity = 2^19 = 524288 entries
12/04/27 11:46:33 INFO util.GSet: recommended=524288, actual=524288
12/04/27 11:46:33 ERROR namenode.NameNode:
java.lang.ExceptionInInitializerError
at
org.apache.hadoop.security.UserGroupInformation.initialize(UserGroupInformation.java:212)
at
org.apache.hadoop.security.UserGroupInformation.ensureInitialized(UserGroupInformation.java:187)
at
org.apache.hadoop.security.UserGroupInformation.isSecurityEnabled(UserGroupInformation.java:239)
at
org.apache.hadoop.security.UserGroupInformation.getLoginUser(UserGroupInformation.java:438)
at
org.apache.hadoop.security.UserGroupInformation.getCurrentUser(UserGroupInformation.java:424)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.setConfigurationParameters(FSNamesystem.java:473)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.<init>(FSNamesystem.java:462)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:1162)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1271)
at
org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1288)
Caused by: java.util.regex.PatternSyntaxException: Illegal repetition
near index 8
[jt]t@.*${KERBEROS_REALM}
^
at java.util.regex.Pattern.error(Pattern.java:1730)
at java.util.regex.Pattern.closure(Pattern.java:2792)
at java.util.regex.Pattern.sequence(Pattern.java:1906)
at java.util.regex.Pattern.expr(Pattern.java:1769)
at java.util.regex.Pattern.compile(Pattern.java:1477)
at java.util.regex.Pattern.<init>(Pattern.java:1150)
at java.util.regex.Pattern.compile(Pattern.java:840)
at
org.apache.hadoop.security.KerberosName$Rule.<init>(KerberosName.java:188)
at
org.apache.hadoop.security.KerberosName.parseRules(KerberosName.java:324)
at
org.apache.hadoop.security.KerberosName.setConfiguration(KerberosName.java:343)
at
org.apache.hadoop.security.UserGroupInformation.initialize(UserGroupInformation.java:212)
at
org.apache.hadoop.security.UserGroupInformation.ensureInitialized(UserGroupInformation.java:187)
at
org.apache.hadoop.security.UserGroupInformation.isSecurityEnabled(UserGroupInformation.java:239)
at
org.apache.hadoop.security.KerberosName.<clinit>(KerberosName.java:83)
... 10 more
12/04/27 11:46:33 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at ubuntu/127.0.1.1
************************************************************/
\______ And once again...
... a variable seems to be undefined. And i guess, if i found a suitable
value for this property the next one will be undefined. I hope there are
any default values present, because i have no idea, what to fill to the
value slots. All books and instructions i read on hadoop never discussed
these issues.
BTW: HADOOP_HOME is defined, although the log tells different.
I hope you can assist me.
Best regards,
Björn-Elmar Macek
