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From Le Zhao <lez...@cs.cmu.edu>
Subject Re: change of default port 8020
Date Thu, 02 Jun 2011 18:01:58 GMT
btw, the /lezhao/gov2 service from the root directory 
(/bos/usr0/htdocs/lezhao/gov2) works fine.

Le
On 6/2/2011 1:00 PM, George Kousiouris wrote:
>
> Hi,
>
> it seems to be working fine, and the telnet also works...:-(
>
> On 6/2/2011 7:56 PM, Harsh J wrote:
>> George,
>>
>> Could you ensure that your 8090'd NameNode starts up fine? If yes, can
>> also you telnet to that "host port" from your remote node - that
>> should tell you if your firewall is at issue again?
>>
>> On Thu, Jun 2, 2011 at 10:17 PM, George Kousiouris
>> <gkousiou@mail.ntua.gr> wrote:
>>> Hi,
>>>
>>> the main issue that we are trying to connect a datanode from a remote
>>> domain
>>> to the master node that is behind a firewall that does not have 8020
>>> open.
>>> We change the port from the core-site xml to 8090 and restart.
>>> But when we try to start hdfs, it seems that all services are started,
>>> datanode is listed in the jps, however in the datanode logs we get the
>>> following error:
>>>
>>> 2011-06-02 12:41:21,378 INFO org.apache.hadoop.ipc.Client: Retrying
>>> connect to server: master/xxx.xxx.xxx.xxx:8090. Already tried 3
>>> time(s).
>>>
>>> and it finally gives up. Thanks for the link, it is very helpful to
>>> have all
>>> this info concentrated.
>>>
>>> BR,
>>> George
>>>
>>> On 6/2/2011 7:37 PM, Harsh J wrote:
>>>> George,
>>>>
>>>> Could you additionally describe the issues you're facing right now
>>>> w.r.t.
>>>> ports?
>>>>
>>>> If you need a fuller port number reference, we have a blog post here
>>>> you can get them from:
>>>> http://www.cloudera.com/blog/2009/08/hadoop-default-ports-quick-reference/
>>>>
>>>>
>>>> On Thu, Jun 2, 2011 at 8:18 PM, George
>>>> Kousiouris<gkousiou@mail.ntua.gr>
>>>> wrote:
>>>>> Hi,
>>>>>
>>>>> thanks for the reply, we tried this with a definitely open (from a
>>>>> firewall
>>>>> pov) port but still did not work. Maybe something else in addition is
>>>>> needed?
>>>>>
>>>>> Thanks,
>>>>> George
>>>>>
>>>>> On 6/2/2011 5:32 PM, John Armstrong wrote:
>>>>>> On Thu, 02 Jun 2011 17:23:08 +0300, George Kousiouris
>>>>>> <gkousiou@mail.ntua.gr> wrote:
>>>>>>> Are there anywhere instructions on how to change from the default
>>>>>>> ports
>>>>>>> of Hadoop and HDFS? My main interest is in default port 8020.
>>>>>> I think this is part of fs.default.name. You would go into
>>>>>> core-site.xml
>>>>>> and add (or change)
>>>>>>
>>>>>> <property>
>>>>>> <name>fs.default.name</name>
>>>>>> <value>hdfs://[namenode]:[port]</value>
>>>>>> </property>
>>>>>>
>>>>>> I'm sort of new to this myself, so if I'm wrong I hope someone will
>>>>>> correct me.
>>>>>>
>>>>>>
>>>>> --
>>>>>
>>>>> ---------------------------
>>>>>
>>>>> George Kousiouris
>>>>> Electrical and Computer Engineer
>>>>> Division of Communications,
>>>>> Electronics and Information Engineering
>>>>> School of Electrical and Computer Engineering
>>>>> Tel: +30 210 772 2546
>>>>> Mobile: +30 6939354121
>>>>> Fax: +30 210 772 2569
>>>>> Email: gkousiou@mail.ntua.gr
>>>>>
>>>>> National Technical University of Athens
>>>>> 9 Heroon Polytechniou str., 157 73 Zografou, Athens, Greece
>>>>>
>>>>>
>>>>
>>>
>>> --
>>>
>>> ---------------------------
>>>
>>> George Kousiouris
>>> Electrical and Computer Engineer
>>> Division of Communications,
>>> Electronics and Information Engineering
>>> School of Electrical and Computer Engineering
>>> Tel: +30 210 772 2546
>>> Mobile: +30 6939354121
>>> Fax: +30 210 772 2569
>>> Email: gkousiou@mail.ntua.gr
>>>
>>> National Technical University of Athens
>>> 9 Heroon Polytechniou str., 157 73 Zografou, Athens, Greece
>>>
>>>
>>
>>
>
>

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