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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-2805) LInks in http://jobtracker/machines.jsp are broken while running hadoop locally
Date Thu, 05 Feb 2009 13:19:59 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2805?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12670747#action_12670747

Steve Loughran commented on HADOOP-2805:

I have a newly built up Centos5.2 VM with minimal customisation -it defaults to a name locahost.localdomain

When deployed on a home network with no local DNS, just a relay to the outside world, it gets

in etc/hosts the entry is there

$ cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.       localhost.localdomain   localhost
::1     localhost6.localdomain6 localhost6

network settings

eth0      Link encap:Ethernet  HWaddr 00:0C:29:AE:AD:37  
          inet addr:  Bcast:  Mask:
          inet6 addr: fe80::20c:29ff:feae:ad37/64 Scope:Link
          RX packets:13418 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8007 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:20024609 (19.0 MiB)  TX bytes:560349 (547.2 KiB)
          Interrupt:67 Base address:0x2024 

lo        Link encap:Local Loopback  
          inet addr:  Mask:
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:2015 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2015 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:3081792 (2.9 MiB)  TX bytes:3081792 (2.9 MiB)

nslookup fails, but operations like ssh localhost.localdomain do work. If the browser can't
resolve http://localhost.localdomain:50060 then it may be set up to use a proxy, and the proxy
is bailing out as there is no service on that system.

# it may be useful to have, as an option, the ability to use IPAddresses everywhere, rather
than hostnames. 
# some diagnostics could add a requirement for non-local-host, fail if the hostname was just

> LInks in http://jobtracker/machines.jsp are broken while running hadoop locally
> -------------------------------------------------------------------------------
>                 Key: HADOOP-2805
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2805
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Amar Kamat
> While running hadoop locally, the tasktracker information on machines.jsp is represented
as http://localhost.localdomain:50060 which doesn't work. It should be http://localhost:50060.

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