At the place where you get the error, can you cross check what the URL is
that is being accessed ? Also, can you compare it with the URL with pages
before this that work ?

Thanks
hemanth
On Thu, Jan 17, 2013 at 1:08 AM, jamal sasha <[EMAIL PROTECTED]> wrote:

> I am inside a network where I need proxy settings to access the internet.
> I have a weird problem.
>
> The internet is working fine.
> But it is one particular instance when i get this error:
>
>     Network Error (tcp_error)
>
>     A communication error occurred: "Operation timed out"
>     The Web Server may be down, too busy, or experiencing other problems
> preventing it from responding to requests. You may wish to try again at a
> later time.
>
>     For assistance, contact your network support team.
>
> This happens when I use hadoop in local mode.
> I can access the UI interface. I can see the jobs running. but when I try
> to see the logs of each task.. i am not able to access those logs.
>
>     UI--> job-->map--> task--> all <-- this is where the error is..
>
> Any clues?
> THanks
>

Coincidentally, I faced the same issue just now.

In my case, it turned out that I was running Hadoop daemons in
pseudo-distributed mode, and in between a machine suspend and restart, the
network configuration changed. The logs link was referring to the older IP
address in use in the URL and thus failed when I tried to open it.
Restarting the daemons helped.

I don't think this problem will come in a normal up-and-running production
cluster.

Thanks
hemanth
On Thu, Jan 17, 2013 at 9:48 AM, Hemanth Yamijala <[EMAIL PROTECTED]
> wrote:

> At the place where you get the error, can you cross check what the URL is
> that is being accessed ? Also, can you compare it with the URL with pages
> before this that work ?
>
> Thanks
> hemanth
>
>
> On Thu, Jan 17, 2013 at 1:08 AM, jamal sasha <[EMAIL PROTECTED]>wrote:
>
>> I am inside a network where I need proxy settings to access the internet.
>> I have a weird problem.
>>
>> The internet is working fine.
>> But it is one particular instance when i get this error:
>>
>>     Network Error (tcp_error)
>>
>>     A communication error occurred: "Operation timed out"
>>     The Web Server may be down, too busy, or experiencing other problems
>> preventing it from responding to requests. You may wish to try again at a
>> later time.
>>
>>     For assistance, contact your network support team.
>>
>> This happens when I use hadoop in local mode.
>> I can access the UI interface. I can see the jobs running. but when I try
>> to see the logs of each task.. i am not able to access those logs.
>>
>>     UI--> job-->map--> task--> all <-- this is where the error is..
>>
>> Any clues?
>> THanks
>>
>
>