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From "Shashang Sheth (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-6725) Datanode and Task Tracker not starting
Date Tue, 22 Jul 2014 11:42:39 GMT

     [ https://issues.apache.org/jira/browse/HDFS-6725?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Shashang Sheth updated HDFS-6725:
---------------------------------

    Description: 
I am unable to start the datanode and tasktracker daemons on one of my slave nodes. I have
got two slave nodes for my test env.
The error is familiar to Jira, however the solutions provided in JIRA is not working for me.

Below are the errors 
Datanode log file:

2014-07-22 07:17:54,559 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: STARTUP_MSG:

/************************************************************
STARTUP_MSG: Starting DataNode
STARTUP_MSG:   host = Hadslave1/127.0.1.1
STARTUP_MSG:   args = []
STARTUP_MSG:   version = 1.2.0
STARTUP_MSG:   build = https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.2
-r 1479473; compiled by 'hortonfo' on Mon May  6 
06:59:37 UTC 2013
STARTUP_MSG:   java = 1.6.0_31
************************************************************/
2014-07-22 07:17:55,691 INFO org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties
from hadoop-metrics2.properties
2014-07-22 07:17:55,703 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for
source MetricsSystem,sub=Stats registered.
2014-07-22 07:17:55,732 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled
snapshot period at 10 second(s).
2014-07-22 07:17:55,732 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: DataNode metrics
system started
2014-07-22 07:17:56,265 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for
source ugi registered.
2014-07-22 07:17:56,275 WARN org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Source name
ugi already exists!
2014-07-22 07:17:57,536 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: java.lang.IllegalArgumentException:
Does not contain a valid
 host:port authority: file:///
	at org.apache.hadoop.net.NetUtils.createSocketAddr(NetUtils.java:164)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:212)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:244)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.getServiceAddress(NameNode.java:236)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:357)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:319)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:1698)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1637)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1655)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:1781)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1798)

2014-07-22 07:17:57,566 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: SHUTDOWN_MSG:

/************************************************************
SHUTDOWN_MSG: Shutting down DataNode at Hadslave1/127.0.1.1
************************************************************/


Task tracker's log files:

2014-07-22 07:17:59,297 INFO org.apache.hadoop.mapred.TaskTracker: STARTUP_MSG: 
/************************************************************
STARTUP_MSG: Starting TaskTracker
STARTUP_MSG:   host = Hadslave1/127.0.1.1
STARTUP_MSG:   args = []
STARTUP_MSG:   version = 1.2.0
STARTUP_MSG:   build = https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.2
-r 1479473; compiled by 'hortonfo' on Mon May  6 
06:59:37 UTC 2013
STARTUP_MSG:   java = 1.6.0_31
************************************************************/
2014-07-22 07:17:59,671 INFO org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties
from hadoop-metrics2.properties
2014-07-22 07:17:59,814 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for
source MetricsSystem,sub=Stats registered.
2014-07-22 07:17:59,815 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled
snapshot period at 10 second(s).
2014-07-22 07:17:59,815 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: TaskTracker
metrics system started
2014-07-22 07:18:00,028 INFO org.apache.hadoop.util.NativeCodeLoader: Loaded the native-hadoop
library
2014-07-22 07:18:00,158 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for
source ugi registered.
2014-07-22 07:18:00,160 WARN org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Source name
ugi already exists!
2014-07-22 07:18:00,265 ERROR org.apache.hadoop.mapred.TaskTracker: Can not start task tracker
because java.lang.IllegalArgumentException: 
Does not contain a valid host:port authority: local
	at org.apache.hadoop.net.NetUtils.createSocketAddr(NetUtils.java:164)
	at org.apache.hadoop.net.NetUtils.createSocketAddr(NetUtils.java:130)
	at org.apache.hadoop.mapred.JobTracker.getAddress(JobTracker.java:2121)
	at org.apache.hadoop.mapred.TaskTracker.<init>(TaskTracker.java:1540)
	at org.apache.hadoop.mapred.TaskTracker.main(TaskTracker.java:3937)

2014-07-22 07:18:00,265 INFO org.apache.hadoop.mapred.TaskTracker: SHUTDOWN_MSG: 
/************************************************************
SHUTDOWN_MSG: Shutting down TaskTracker at Hadslave1/127.0.1.1
************************************************************/

Below are my configuration files:
user@Hadmast:/opt/hadoop-1.2.0/conf$ cat core-site.xml 
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<!-- Put site-specific property overrides in this file. -->

<configuration>

<property>

<name>fs.default.name</name>

<value>hdfs://192.168.111.131:8020</value>

</property>

</configuration>
user@Hadmast:/opt/hadoop-1.2.0/conf$ cat hdfs-site.xml 
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<!-- Put site-specific property overrides in this file. -->

<configuration>

<property>
<name>dfs.replication</name>
<value>2</value>
</property>

<property>
<name>dfs.permissions</name>
<value>false</value>
</property>

</configuration>
user@Hadmast:/opt/hadoop-1.2.0/conf$ cat mapred-site.xml 
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<!-- Put site-specific property overrides in this file. -->

<configuration>

	<property>

		<name>mapred.job.tracker</name>

		<value>localhost:8021</value>

	</property>

</configuration>
user@Hadmast:/opt/hadoop-1.2.0/conf$ 

Both the daemons start on Hadmast node but doesn't start on the other node.

user@Hadmast:~$ jps
7947 Jps
6421 NameNode
7661 DataNode
6941 JobTracker
6866 SecondaryNameNode
7172 TaskTracker
user@Hadmast:~$ 

user@Hadslave1:~$ jps
4826 Jps
user@Hadslave1:~$

I have formated the namenode multiple times and have also rebuilt the Hadslave1 once but no
change.

  was:
I am unable to start the datanode and tasktracker daemons on one of my slave nodes. I have
got two slave nodes for my test env.
The error is familiar to Jira, however the solutions provided in JIRA is not working for me.

Below are the errors 
Datanode log file:

2014-07-22 07:17:54,559 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: STARTUP_MSG:

/************************************************************
STARTUP_MSG: Starting DataNode
STARTUP_MSG:   host = Hadslave1/127.0.1.1
STARTUP_MSG:   args = []
STARTUP_MSG:   version = 1.2.0
STARTUP_MSG:   build = https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.2
-r 1479473; compiled by 'hortonfo' on Mon May  6 
06:59:37 UTC 2013
STARTUP_MSG:   java = 1.6.0_31
************************************************************/
2014-07-22 07:17:55,691 INFO org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties
from hadoop-metrics2.properties
2014-07-22 07:17:55,703 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for
source MetricsSystem,sub=Stats registered.
2014-07-22 07:17:55,732 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled
snapshot period at 10 second(s).
2014-07-22 07:17:55,732 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: DataNode metrics
system started
2014-07-22 07:17:56,265 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for
source ugi registered.
2014-07-22 07:17:56,275 WARN org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Source name
ugi already exists!
2014-07-22 07:17:57,536 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: java.lang.IllegalArgumentException:
Does not contain a valid
 host:port authority: file:///
	at org.apache.hadoop.net.NetUtils.createSocketAddr(NetUtils.java:164)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:212)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:244)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.getServiceAddress(NameNode.java:236)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:357)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:319)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:1698)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1637)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1655)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:1781)
	at org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1798)

2014-07-22 07:17:57,566 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: SHUTDOWN_MSG:

/************************************************************
SHUTDOWN_MSG: Shutting down DataNode at Hadslave1/127.0.1.1
************************************************************/


Task tracker's log files:

2014-07-22 07:17:59,297 INFO org.apache.hadoop.mapred.TaskTracker: STARTUP_MSG: 
/************************************************************
STARTUP_MSG: Starting TaskTracker
STARTUP_MSG:   host = Hadslave1/127.0.1.1
STARTUP_MSG:   args = []
STARTUP_MSG:   version = 1.2.0
STARTUP_MSG:   build = https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.2
-r 1479473; compiled by 'hortonfo' on Mon May  6 
06:59:37 UTC 2013
STARTUP_MSG:   java = 1.6.0_31
************************************************************/
2014-07-22 07:17:59,671 INFO org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties
from hadoop-metrics2.properties
2014-07-22 07:17:59,814 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for
source MetricsSystem,sub=Stats registered.
2014-07-22 07:17:59,815 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled
snapshot period at 10 second(s).
2014-07-22 07:17:59,815 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: TaskTracker
metrics system started
2014-07-22 07:18:00,028 INFO org.apache.hadoop.util.NativeCodeLoader: Loaded the native-hadoop
library
2014-07-22 07:18:00,158 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean for
source ugi registered.
2014-07-22 07:18:00,160 WARN org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Source name
ugi already exists!
2014-07-22 07:18:00,265 ERROR org.apache.hadoop.mapred.TaskTracker: Can not start task tracker
because java.lang.IllegalArgumentException: 
Does not contain a valid host:port authority: local
	at org.apache.hadoop.net.NetUtils.createSocketAddr(NetUtils.java:164)
	at org.apache.hadoop.net.NetUtils.createSocketAddr(NetUtils.java:130)
	at org.apache.hadoop.mapred.JobTracker.getAddress(JobTracker.java:2121)
	at org.apache.hadoop.mapred.TaskTracker.<init>(TaskTracker.java:1540)
	at org.apache.hadoop.mapred.TaskTracker.main(TaskTracker.java:3937)

2014-07-22 07:18:00,265 INFO org.apache.hadoop.mapred.TaskTracker: SHUTDOWN_MSG: 
/************************************************************
SHUTDOWN_MSG: Shutting down TaskTracker at Hadslave1/127.0.1.1
************************************************************/

Below are my configuration files:
user@Hadmast:/opt/hadoop-1.2.0/conf$ cat core-site.xml 
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<!-- Put site-specific property overrides in this file. -->

<configuration>

<property>

<name>fs.default.name</name>

<value>hdfs://192.168.111.131:8020</value>

</property>

</configuration>
user@Hadmast:/opt/hadoop-1.2.0/conf$ cat hdfs-site.xml 
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<!-- Put site-specific property overrides in this file. -->

<configuration>

<property>
<name>dfs.replication</name>
<value>2</value>
</property>

<property>
<name>dfs.permissions</name>
<value>false</value>
</property>

</configuration>
user@Hadmast:/opt/hadoop-1.2.0/conf$ cat mapred-site.xml 
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<!-- Put site-specific property overrides in this file. -->

<configuration>

	<property>

		<name>mapred.job.tracker</name>

		<value>localhost:8021</value>

	</property>

</configuration>
user@Hadmast:/opt/hadoop-1.2.0/conf$ 

Both the daemons start on Hadmast node but doesn't start on the other node.

user@Hadmast:/opt/hadoop-1.2.0/conf$ jps
6421 NameNode
7592 Jps
6941 JobTracker
6866 SecondaryNameNode
7172 TaskTracker

user@Hadslave1:~$ jps
4826 Jps
user@Hadslave1:~$

I have formated the namenode multiple times and have also rebuilt the Hadslave1 once but no
change.


> Datanode and Task Tracker not starting
> --------------------------------------
>
>                 Key: HDFS-6725
>                 URL: https://issues.apache.org/jira/browse/HDFS-6725
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>         Environment: user@Hadslave1:~$ uname -a
> Linux Hadslave1 3.2.0-23-generic-pae #36-Ubuntu SMP Tue Apr 10 22:19:09 UTC 2012 i686
i686 i386 GNU/Linux
> user@Hadslave1:~$
> user@Hadslave1:~$ /opt/hadoop-1.2.0/bin/hadoop -version
> java version "1.6.0_31"
> OpenJDK Runtime Environment (IcedTea6 1.13.3) (6b31-1.13.3-1ubuntu1~0.12.04.2)
> OpenJDK Client VM (build 23.25-b01, mixed mode, sharing)
> user@Hadslave1:~$ java -version
> java version "1.6.0_31"
> OpenJDK Runtime Environment (IcedTea6 1.13.3) (6b31-1.13.3-1ubuntu1~0.12.04.2)
> OpenJDK Client VM (build 23.25-b01, mixed mode, sharing)
> user@Hadslave1:~$
>            Reporter: Shashang Sheth
>            Priority: Minor
>
> I am unable to start the datanode and tasktracker daemons on one of my slave nodes. I
have got two slave nodes for my test env.
> The error is familiar to Jira, however the solutions provided in JIRA is not working
for me.
> Below are the errors 
> Datanode log file:
> 2014-07-22 07:17:54,559 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: STARTUP_MSG:

> /************************************************************
> STARTUP_MSG: Starting DataNode
> STARTUP_MSG:   host = Hadslave1/127.0.1.1
> STARTUP_MSG:   args = []
> STARTUP_MSG:   version = 1.2.0
> STARTUP_MSG:   build = https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.2
-r 1479473; compiled by 'hortonfo' on Mon May  6 
> 06:59:37 UTC 2013
> STARTUP_MSG:   java = 1.6.0_31
> ************************************************************/
> 2014-07-22 07:17:55,691 INFO org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties
from hadoop-metrics2.properties
> 2014-07-22 07:17:55,703 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean
for source MetricsSystem,sub=Stats registered.
> 2014-07-22 07:17:55,732 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled
snapshot period at 10 second(s).
> 2014-07-22 07:17:55,732 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: DataNode
metrics system started
> 2014-07-22 07:17:56,265 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean
for source ugi registered.
> 2014-07-22 07:17:56,275 WARN org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Source
name ugi already exists!
> 2014-07-22 07:17:57,536 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: java.lang.IllegalArgumentException:
Does not contain a valid
>  host:port authority: file:///
> 	at org.apache.hadoop.net.NetUtils.createSocketAddr(NetUtils.java:164)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:212)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:244)
> 	at org.apache.hadoop.hdfs.server.namenode.NameNode.getServiceAddress(NameNode.java:236)
> 	at org.apache.hadoop.hdfs.server.datanode.DataNode.startDataNode(DataNode.java:357)
> 	at org.apache.hadoop.hdfs.server.datanode.DataNode.<init>(DataNode.java:319)
> 	at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:1698)
> 	at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:1637)
> 	at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:1655)
> 	at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:1781)
> 	at org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:1798)
> 2014-07-22 07:17:57,566 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: SHUTDOWN_MSG:

> /************************************************************
> SHUTDOWN_MSG: Shutting down DataNode at Hadslave1/127.0.1.1
> ************************************************************/
> Task tracker's log files:
> 2014-07-22 07:17:59,297 INFO org.apache.hadoop.mapred.TaskTracker: STARTUP_MSG: 
> /************************************************************
> STARTUP_MSG: Starting TaskTracker
> STARTUP_MSG:   host = Hadslave1/127.0.1.1
> STARTUP_MSG:   args = []
> STARTUP_MSG:   version = 1.2.0
> STARTUP_MSG:   build = https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.2
-r 1479473; compiled by 'hortonfo' on Mon May  6 
> 06:59:37 UTC 2013
> STARTUP_MSG:   java = 1.6.0_31
> ************************************************************/
> 2014-07-22 07:17:59,671 INFO org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties
from hadoop-metrics2.properties
> 2014-07-22 07:17:59,814 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean
for source MetricsSystem,sub=Stats registered.
> 2014-07-22 07:17:59,815 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled
snapshot period at 10 second(s).
> 2014-07-22 07:17:59,815 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: TaskTracker
metrics system started
> 2014-07-22 07:18:00,028 INFO org.apache.hadoop.util.NativeCodeLoader: Loaded the native-hadoop
library
> 2014-07-22 07:18:00,158 INFO org.apache.hadoop.metrics2.impl.MetricsSourceAdapter: MBean
for source ugi registered.
> 2014-07-22 07:18:00,160 WARN org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Source
name ugi already exists!
> 2014-07-22 07:18:00,265 ERROR org.apache.hadoop.mapred.TaskTracker: Can not start task
tracker because java.lang.IllegalArgumentException: 
> Does not contain a valid host:port authority: local
> 	at org.apache.hadoop.net.NetUtils.createSocketAddr(NetUtils.java:164)
> 	at org.apache.hadoop.net.NetUtils.createSocketAddr(NetUtils.java:130)
> 	at org.apache.hadoop.mapred.JobTracker.getAddress(JobTracker.java:2121)
> 	at org.apache.hadoop.mapred.TaskTracker.<init>(TaskTracker.java:1540)
> 	at org.apache.hadoop.mapred.TaskTracker.main(TaskTracker.java:3937)
> 2014-07-22 07:18:00,265 INFO org.apache.hadoop.mapred.TaskTracker: SHUTDOWN_MSG: 
> /************************************************************
> SHUTDOWN_MSG: Shutting down TaskTracker at Hadslave1/127.0.1.1
> ************************************************************/
> Below are my configuration files:
> user@Hadmast:/opt/hadoop-1.2.0/conf$ cat core-site.xml 
> <?xml version="1.0"?>
> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
> <!-- Put site-specific property overrides in this file. -->
> <configuration>
> <property>
> <name>fs.default.name</name>
> <value>hdfs://192.168.111.131:8020</value>
> </property>
> </configuration>
> user@Hadmast:/opt/hadoop-1.2.0/conf$ cat hdfs-site.xml 
> <?xml version="1.0"?>
> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
> <!-- Put site-specific property overrides in this file. -->
> <configuration>
> <property>
> <name>dfs.replication</name>
> <value>2</value>
> </property>
> <property>
> <name>dfs.permissions</name>
> <value>false</value>
> </property>
> </configuration>
> user@Hadmast:/opt/hadoop-1.2.0/conf$ cat mapred-site.xml 
> <?xml version="1.0"?>
> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
> <!-- Put site-specific property overrides in this file. -->
> <configuration>
> 	<property>
> 		<name>mapred.job.tracker</name>
> 		<value>localhost:8021</value>
> 	</property>
> </configuration>
> user@Hadmast:/opt/hadoop-1.2.0/conf$ 
> Both the daemons start on Hadmast node but doesn't start on the other node.
> user@Hadmast:~$ jps
> 7947 Jps
> 6421 NameNode
> 7661 DataNode
> 6941 JobTracker
> 6866 SecondaryNameNode
> 7172 TaskTracker
> user@Hadmast:~$ 
> user@Hadslave1:~$ jps
> 4826 Jps
> user@Hadslave1:~$
> I have formated the namenode multiple times and have also rebuilt the Hadslave1 once
but no change.



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