hadoop fs -mkdir failed on connection exception - hadoop

Question

I have been trying to set up and run Hadoop in the pseudo Distributed Mode.But when I type
bin/hadoop fs -mkdir input
I get
mkdir: Call From h1/192.168.1.13 to h1:9000 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
here is the details
core-site.xml
<configuration>
<property>
<name>hadoop.tmp.dir</name>
<value>/home/grid/tmp</value>
</property>
<property>
<name>fs.defaultFS</name>
<value>hdfs://h1:9000</value>
</property>
</configuration>
mapred-site.xml
<configuration>
<property>
<name>mapred.job.tracker</name>
<value>h1:9001</value>
</property>
<property>
<name>mapred.map.tasks</name>
<value>20</value>
</property>
<property>
<name>mapred.reduce.tasks</name>
<value>4</value>
</property>
<property>
<name>mapreduce.framework.name</name>
<value>yarn</value>
</property>
<property>
<name>mapreduce.jobtracker.http.address</name>
<value>h1:50030</value>
</property>
<property>
<name>mapreduce.jobhistory.address</name>
<value>h1:10020</value>
</property>
<property>
<name>mapreduce.jobhistory.webapp.address</name>
<value>h1:19888</value>
</property>
</configuration>
hdfs-site.xml
<configuration>
<property>
<name>dfs.http.address</name>
<value>h1:50070</value>
</property>
<property>
<name>dfs.namenode.rpc-address</name>
<value>h1:9001</value>
</property>
<property>
<name>dfs.namenode.secondary.http-address</name>
<value>h1:50090</value>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>/home/grid/data</value>
</property>
<property>
<name>dfs.replication</name>
<value>2</value>
</property>
</configuration>
/etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.1.13 h1
192.168.1.14 h2
192.168.1.15 h3
After hadoop namenode -format and start-all.sh
1702 ResourceManager
1374 DataNode
1802 NodeManager
2331 Jps
1276 NameNode
1558 SecondaryNameNode
the problem occurs
[grid#h1 hadoop-2.6.0]$ bin/hadoop fs -mkdir input
15/05/13 16:37:57 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
mkdir: Call From h1/192.168.1.13 to h1:9000 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
Where is the problems?
hadoop-grid-datanode-h1.log
2015-05-12 11:26:20,329 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting DataNode
STARTUP_MSG: host = h1/192.168.1.13
STARTUP_MSG: args = []
STARTUP_MSG: version = 2.6.0
hadoop-grid-namenode-h1.log
2015-05-08 16:06:32,561 INFO org.apache.hadoop.hdfs.server.namenode.NameNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG: host = h1/192.168.1.13
STARTUP_MSG: args = []
STARTUP_MSG: version = 2.6.0
why the port 9000 does not work?
[grid#h1 ~]$ netstat -tnl |grep 9000
[grid#h1 ~]$ netstat -tnl |grep 9001
tcp 0 0 192.168.1.13:9001 0.0.0.0:* LISTEN

Answer 1

Please start dfs and yarn.
[hadoop#hadooplab sbin]$ ./start-dfs.sh
[hadoop#hadooplab sbin]$ ./start-yarn.sh
Now try using "bin/hadoop fs -mkdir input"
The issue usually comes when you install hadoop in a VM and then shut it down. When you shut down VM, dfs and yarn also stops. So you need to start dfs and yarn each time you restart the VM.

Answer 2

Firstly try command
bin/hadoop dfs -mkdir input
If you have followed micheal-roll post properly then you should not have any issue. I suspect that passwordless ssh is not working in your configuration, recheck it.

Answer 3

Following procedure resolved the issue for me:
Stop all the services.
Delete namenode and datanode directories as specified in hdfs-site.xml.
Create new namenode and datanode directories and modify hdfs-site.xml accordingly.
In core-site.xml, make the following changes or add the following properties:
fs.defaultFS
hdfs://172.20.12.168/
fs.default.name
hdfs://172.20.12.168:8020
Make the following changes in hadoop-2.6.4/etc/hadoop/hadoop-env.sh file:
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_91.jdk/Contents/Home
Restart dfs, yarn and mr as follows:
start-dfs.sh
start-yarn.sh
mr-jobhistory-daemon.sh start historyserver

Answer 4

This command worked for me:
hadoop namenode -format