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Posted to common-user@hadoop.apache.org by stchu <st...@gmail.com> on 2009/03/25 11:00:54 UTC
about dfsadmin -report
Hi,
I do a test about the datanode crash. I stop the networking on one of the
datanode.
The Web app and fsck report that datanode dead after 10 mins. But dfsadmin
-report
are not report that over 25 mins. Is this correct? Why?
Thanks for your guide.
stchu
Re: about dfsadmin -report
Posted by stchu <st...@gmail.com>.
Thanks for your response, Bill.
But I still feel confused that why the results from "dfsadmin -report" and
"Web UI and fsck" is inconsistent?
Besides, I note that on the web ui (NameNode:50070), the "Heap Size" is
963MB. In my configuration, the
NameNode and the JobTracker are on the same machine. I use the default
configuration for heap size.
Why the Heap Size shown on the web ui is not 1024MB?
Thanks a lot for your responses~
stchu
2009/3/25 Bill Au <bi...@gmail.com>
> The time is configurable:
>
> heartbeat.recheck.interval
> dfs.heartbeat.interval
>
> Bill
>
> On Wed, Mar 25, 2009 at 6:00 AM, stchu <st...@gmail.com> wrote:
>
> > Hi,
> >
> > I do a test about the datanode crash. I stop the networking on one of the
> > datanode.
> > The Web app and fsck report that datanode dead after 10 mins. But
> dfsadmin
> > -report
> > are not report that over 25 mins. Is this correct? Why?
> >
> > Thanks for your guide.
> >
> > stchu
> >
>
Re: about dfsadmin -report
Posted by Bill Au <bi...@gmail.com>.
The time is configurable:
heartbeat.recheck.interval
dfs.heartbeat.interval
Bill
On Wed, Mar 25, 2009 at 6:00 AM, stchu <st...@gmail.com> wrote:
> Hi,
>
> I do a test about the datanode crash. I stop the networking on one of the
> datanode.
> The Web app and fsck report that datanode dead after 10 mins. But dfsadmin
> -report
> are not report that over 25 mins. Is this correct? Why?
>
> Thanks for your guide.
>
> stchu
>
Re: about dfsadmin -report
Posted by Raghu Angadi <ra...@yahoo-inc.com>.
stchu wrote:
> But when the web-ui shows the node dead, -report still shows "in service"
> and the living nodes=3 (in web-ui: living=2 dead=1).
please file a jira and describe how to reproduce in as much detail as
you can in a comment.
thanks,
Raghu.
> stchu
>
> 2009/3/26 Raghu Angadi <ra...@yahoo-inc.com>
>
>> stchu wrote:
>>
>>> Hi,
>>>
>>> I do a test about the datanode crash. I stop the networking on one of the
>>> datanode.
>>> The Web app and fsck report that datanode dead after 10 mins. But dfsadmin
>>> -report
>>> are not report that over 25 mins. Is this correct?
>>>
>> Nope. Both web-ui and '-report' from the same source of info. They should
>> be consistent.
>>
>> Raghu.
>>
>> Thanks for your guide.
>>> stchu
>>>
>>>
>
Re: about dfsadmin -report
Posted by stchu <st...@gmail.com>.
But when the web-ui shows the node dead, -report still shows "in service"
and the living nodes=3 (in web-ui: living=2 dead=1).
stchu
2009/3/26 Raghu Angadi <ra...@yahoo-inc.com>
> stchu wrote:
>
>> Hi,
>>
>> I do a test about the datanode crash. I stop the networking on one of the
>> datanode.
>> The Web app and fsck report that datanode dead after 10 mins. But dfsadmin
>> -report
>> are not report that over 25 mins. Is this correct?
>>
>
> Nope. Both web-ui and '-report' from the same source of info. They should
> be consistent.
>
> Raghu.
>
> Thanks for your guide.
>>
>> stchu
>>
>>
>
Re: about dfsadmin -report
Posted by Raghu Angadi <ra...@yahoo-inc.com>.
stchu wrote:
> Hi,
>
> I do a test about the datanode crash. I stop the networking on one of the
> datanode.
> The Web app and fsck report that datanode dead after 10 mins. But dfsadmin
> -report
> are not report that over 25 mins. Is this correct?
Nope. Both web-ui and '-report' from the same source of info. They
should be consistent.
Raghu.
> Thanks for your guide.
>
> stchu
>