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From "MrAsanjar ." <afsan...@gmail.com>
Subject Re: ipc.Client: Retrying connect to server
Date Sun, 19 Apr 2015 17:37:38 GMT
try adding "127.0.0.1 localhost" to /etc/hosts file

On Sun, Apr 19, 2015 at 12:09 PM, Mich Talebzadeh <mich@peridale.co.uk>
wrote:

> Hi,
>
>
>
> In addition, perhaps an easier approach would be a telnet to test quickly
> if server is started on a given port
>
>
>
> Mine runs on port 9000 so if it works the telnet opening will be
> successful.
>
>
>
> *netstat -plten|grep java*
>
>
>
> tcp        0      0 0.0.0.0:10020               0.0.0.0:*
> LISTEN      1009       19471      6898/java
>
> tcp        0      0 0.0.0.0:50020               0.0.0.0:*
> LISTEN      1009       15758      6213/java
>
> *tcp        0      0 50.140.197.217:9000
> <http://50.140.197.217:9000>         0.0.0.0:*
> LISTEN      1009       15711      6113/java*
>
> tcp        0      0 0.0.0.0:50090               0.0.0.0:*
> LISTEN      1009       15972      6405/java
>
> tcp        0      0 0.0.0.0:19888               0.0.0.0:*
> LISTEN      1009       18565      6898/java
>
> tcp        0      0 0.0.0.0:10033               0.0.0.0:*
> LISTEN      1009       18343      6898/java
>
> tcp        0      0 0.0.0.0:50070               0.0.0.0:*
> LISTEN      1009       15502      6113/java
>
> tcp        0      0 0.0.0.0:10010               0.0.0.0:*
> LISTEN      1009       21433      7335/java
>
> tcp        0      0 0.0.0.0:50010               0.0.0.0:*
> LISTEN      1009       15745      6213/java
>
> tcp        0      0 0.0.0.0:9083                0.0.0.0:*
> LISTEN      1009       19481      7110/java
>
> tcp        0      0 0.0.0.0:50075               0.0.0.0:*
> LISTEN      1009       15750      6213/java
>
>
>
> hduser@rhes564::/home/hduser/dba/bin> *telnet rhes564 9000*
>
> Trying 50.140.197.217...
>
> Connected to rhes564.
>
> Escape character is '^]'.
>
>
>
> HTH
>
>
>
> Mich Talebzadeh
>
>
>
> http://talebzadehmich.wordpress.com
>
>
>
> Author of the books* "A Practitioner’s Guide to Upgrading to Sybase** ASE
> 15", **ISBN 978-0-9563693-0-7*.
>
> co-author *"Sybase Transact SQL Guidelines Best Practices", ISBN
> 978-0-9759693-0-4*
>
> *Publications due shortly:*
>
> *Creating in-memory Data Grid for Trading Systems with Oracle TimesTen and
> Coherence Cache*
>
> *Oracle and Sybase, Concepts and Contrasts*, ISBN: 978-0-9563693-1-4, volume
> one out shortly
>
>
>
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>
> *From:* Brahma Reddy Battula [mailto:brahmareddy.battula@hotmail.com]
> *Sent:* 19 April 2015 17:53
> *To:* user@hadoop.apache.org
> *Subject:* RE: ipc.Client: Retrying connect to server
>
>
>
> 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-prohibited
> COMMIT
>
>
>
> [root@tiger hadoop-1.0.2]# /etc/init.d/iptables restart
> iptables: 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 54311
> tcp        0      0 ::ffff:127.0.0.1:54311
> :::*                        LISTEN
> tcp      426      0 ::ffff:127.0.0.1:54311      ::ffff:127.0.0.1:49639
> ESTABLISHED
> tcp        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.sh
> Warning: $HADOOP_HOME is deprecated.
>
> stopping jobtracker
> localhost: Warning: $HADOOP_HOME is deprecated.
> localhost:
> localhost: stopping tasktracker
> no namenode to stop
> localhost: Warning: $HADOOP_HOME is deprecated.
> localhost:
> localhost: no datanode to stop
> localhost: Warning: $HADOOP_HOME is deprecated.
> localhost:
> localhost: stopping secondarynamenode
>
>
>
> [mahmood@tiger hadoop-1.0.2]$ start-all.sh
> Warning: $HADOOP_HOME is deprecated.
>
> starting namenode, logging to
> /home/mahmood/bigdatabench/apache/hadoop-1.0.2/libexec/../logs/hadoop-mahmood-namenode-tiger.out
> localhost: 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.out
> localhost: 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.out
> starting jobtracker, logging to
> /home/mahmood/bigdatabench/apache/hadoop-1.0.2/libexec/../logs/hadoop-mahmood-jobtracker-tiger.out
> localhost: Warning: $HADOOP_HOME is deprecated.
> localhost:
> localhost: starting tasktracker, logging to
> /home/mahmood/bigdatabench/apache/hadoop-1.0.2/libexec/../logs/hadoop-mahmood-tasktracker-tiger.out
>
>
>
> [mahmood@tiger hadoop-1.0.2]$ jps
> 21712 JobTracker
> 21882 TaskTracker
> 21580 SecondaryNameNode
> 21989 Jps
>
>
>
> [mahmood@tiger hadoop-1.0.2]$ hadoop dfsadmin -report
> Warning: $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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