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From Brahma Reddy Battula <brahmareddy.batt...@hotmail.com>
Subject RE: ipc.Client: Retrying connect to server
Date Sun, 19 Apr 2015 16:53:09 GMT
Hello Mahmood Naderan,
When client is trying to connect to server with configured port(and address) and server is
not started with that port then client will retry ( and you will get following error..)..
I can able to trace that Namenode is not running From JPS report which you had posted..Please
check the namenode logs ( location : /home/mahmood/bigdatabench/apache/hadoop-1.0.2/libexec/../logs/hadoop-mahmood-namenode-tiger.out/log)
Date: Fri, 17 Apr 2015 08:22:12 +0000
From: nt_mahmood@yahoo.com
To: user@hadoop.apache.org
Subject: ipc.Client: Retrying connect to server

Hello,I have done all steps (as far as I know) to bring up the hadoop. However, I get the
this error
15/04/17 12:45:31 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:54310.
Already tried 0 time(s).
There are a lot of threads and posts regarding this error and I tried them. However still
stuck at this error :(
Can someone help me? What did I wrong?




Here are the configurations:
1) Hadoop configurations[mahmood@tiger hadoop-1.0.2]$ cat conf/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:54311</value></property><property>  <name>mapred.child.java.opts</name>
 <value>-Xmx512m</value></property></configuration>
[mahmood@tiger hadoop-1.0.2]$ cat conf/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://localhost:54310</value></property></configuration>
[mahmood@tiger hadoop-1.0.2]$ cat conf/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>1</value></property><property>  <name>hadoop.tmp.dir</name>
 <value>/home/mahmood/bigdatabench/apache/hadoop-1.0.2/folders/tmp</value></property><property>
 <name>dfs.name.dir</name>  <value>/home/mahmood/bigdatabench/apache/hadoop-1.0.2/folders/name</value></property><property>
 <name>dfs.data.dir</name>  <value>/home/mahmood/bigdatabench/apache/hadoop-1.0.2/folders/data</value></property></configuration>




2) Network configuration[root@tiger hadoop-1.0.2]# cat /etc/sysconfig/iptables# Firewall configuration
written by system-config-firewall# Manual customization of this file is not recommended.*filter:INPUT
ACCEPT [0:0]:FORWARD ACCEPT [0:0]:OUTPUT ACCEPT [0:0]-A INPUT -m state --state ESTABLISHED,RELATED
-j ACCEPT-A INPUT -p icmp -j ACCEPT-A INPUT -i lo -j ACCEPT-A INPUT -m state --state NEW -m
tcp -p tcp --dport 5901 -j ACCEPT-A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j
ACCEPT-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT-A INPUT -m state --state
NEW -m tcp -p tcp --dport 2049 -j ACCEPT-A INPUT -m state --state NEW -m tcp -p tcp --dport
54310 -j ACCEPT-A INPUT -m state --state NEW -m tcp -p tcp --dport 54311 -j ACCEPT-A INPUT
-j REJECT --reject-with icmp-host-prohibited-A FORWARD -j REJECT --reject-with icmp-host-prohibitedCOMMIT
[root@tiger hadoop-1.0.2]# /etc/init.d/iptables restartiptables: Flushing firewall rules:
                        [  OK  ]iptables: Setting chains to policy ACCEPT: filter        
 [  OK  ]iptables: Unloading modules:                               [  OK  ]iptables: Applying
firewall rules:                         [  OK  ]
[mahmood@tiger hadoop-1.0.2]$ netstat -an | grep 54310[mahmood@tiger hadoop-1.0.2]$ netstat
-an | grep 54311tcp        0      0 ::ffff:127.0.0.1:54311      :::*                     
  LISTENtcp      426      0 ::ffff:127.0.0.1:54311      ::ffff:127.0.0.1:49639      ESTABLISHEDtcp
       0      0 ::ffff:127.0.0.1:49639      ::ffff:127.0.0.1:54311      ESTABLISHED





3) Starting Hadoop[mahmood@tiger hadoop-1.0.2]$ stop-all.shWarning: $HADOOP_HOME is deprecated.stopping
jobtrackerlocalhost: Warning: $HADOOP_HOME is deprecated.localhost:localhost: stopping tasktrackerno
namenode to stoplocalhost: Warning: $HADOOP_HOME is deprecated.localhost:localhost: no datanode
to stoplocalhost: Warning: $HADOOP_HOME is deprecated.localhost:localhost: stopping secondarynamenode
[mahmood@tiger hadoop-1.0.2]$ start-all.shWarning: $HADOOP_HOME is deprecated.starting namenode,
logging to /home/mahmood/bigdatabench/apache/hadoop-1.0.2/libexec/../logs/hadoop-mahmood-namenode-tiger.outlocalhost:
Warning: $HADOOP_HOME is deprecated.localhost:localhost: starting datanode, logging to /home/mahmood/bigdatabench/apache/hadoop-1.0.2/libexec/../logs/hadoop-mahmood-datanode-tiger.outlocalhost:
Warning: $HADOOP_HOME is deprecated.localhost:localhost: starting secondarynamenode, logging
to /home/mahmood/bigdatabench/apache/hadoop-1.0.2/libexec/../logs/hadoop-mahmood-secondarynamenode-tiger.outstarting
jobtracker, logging to /home/mahmood/bigdatabench/apache/hadoop-1.0.2/libexec/../logs/hadoop-mahmood-jobtracker-tiger.outlocalhost:
Warning: $HADOOP_HOME is deprecated.localhost:localhost: starting tasktracker, logging to
/home/mahmood/bigdatabench/apache/hadoop-1.0.2/libexec/../logs/hadoop-mahmood-tasktracker-tiger.out
[mahmood@tiger hadoop-1.0.2]$ jps21712 JobTracker21882 TaskTracker21580 SecondaryNameNode21989
Jps
[mahmood@tiger hadoop-1.0.2]$ hadoop dfsadmin -reportWarning: $HADOOP_HOME is deprecated.15/04/17
12:45:31 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:54310. Already tried
0 time(s).15/04/17 12:45:32 INFO ipc.Client: Retrying connect to server: localhost/127.0.0.1:54310.
Already tried 1 time(s).
Regards,
Mahmood 		 	   		  
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