Yes
cat /etc/hosts # Do not remove the following line, or various programs # that require network functionality will fail. 50.140.197.217 rhes564 rhes564 127.0.0.1 rhes564 localhost.localdomain localhost 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 NOTE: The information in this email is proprietary and confidential. This message is for the designated recipient only, if you are not the intended recipient, you should destroy it immediately. Any information in this message shall not be understood as given or endorsed by Peridale Ltd, its subsidiaries or their employees, unless expressly so stated. It is the responsibility of the recipient to ensure that this email is virus free, therefore neither Peridale Ltd, its subsidiaries nor their employees accept any responsibility. From: MrAsanjar . [mailto:[email protected]] Sent: 19 April 2015 18:38 To: [email protected] Subject: Re: ipc.Client: Retrying connect to server try adding "127.0.0.1 localhost" to /etc/hosts file On Sun, Apr 19, 2015 at 12:09 PM, Mich Talebzadeh <[email protected]> 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 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 NOTE: The information in this email is proprietary and confidential. This message is for the designated recipient only, if you are not the intended recipient, you should destroy it immediately. Any information in this message shall not be understood as given or endorsed by Peridale Ltd, its subsidiaries or their employees, unless expressly so stated. It is the responsibility of the recipient to ensure that this email is virus free, therefore neither Peridale Ltd, its subsidiaries nor their employees accept any responsibility. From: Brahma Reddy Battula [mailto:[email protected]] Sent: 19 April 2015 17:53 To: [email protected] 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: [email protected] To: [email protected] 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
