From: Steve Dickson <SteveD@redhat.com>
To: VDR User <user.vdr@gmail.com>
Cc: linux-nfs@vger.kernel.org
Subject: Re: Problem with rpcbind
Date: Thu, 11 Oct 2012 09:23:51 -0400 [thread overview]
Message-ID: <5076C867.4050806@RedHat.com> (raw)
In-Reply-To: <CAA7C2qg558GBYgaE2_Ay9QmC48UryG_9PqLP7Vebb1_QzRZd-g@mail.gmail.com>
On 09/10/12 22:49, VDR User wrote:
> On Tue, Oct 9, 2012 at 4:37 PM, Steve Dickson <SteveD@redhat.com> wrote:
>>>>> Per Aníbal Salazar, I'm sending this to the nfs mailing list..
>>>>>
>>>>> ==========
>>>>>
>>>>> Hi. I would like to know who I can talk to about having the rpcbind's
>>>>> timeout value settable on the command line by the user. In many cases
>>>>> the timeout is too long, requiring hackish solutions. It would be
>>>>> best, and makes sense, that the user should be able to set the timeout
>>>>> to something other than the default value if he chooses. If you could
>>>>> direct me to the right person to talk to about it, I'd appreciate it.
>>>>
>>>> What timeout are you referring to? The one given to poll()?
>>>
>>> Hi. I guess so but not really sure. I'm talking about the timeout that
>>> happens when rpcbind is waiting for a response. Sounds like poll()
>>> could be it. We have an nfs server on .100 and the response happens
>>> immediately.
>>>
>>> $ rpcinfo -t 192.168.1.100 nfs
>>> program 100003 version 2 ready and waiting
>>> program 100003 version 3 ready and waiting
>>> program 100003 version 4 ready and waiting
>>>
>>> but there's no server on say .101 so if we run the same command on
>>> that ip, the timeout takes a very long time. It's this timeout that
>>> should be user-definable on the command line in my opinion. Any
>>> thoughts about it?
>>
>> Hmm... I'm guess that is the 7min tcp connect time out cause by
>> the -t option... Try using -u instead of -t... Basically using
>> UDP instead of TCP... In general I would never recommend that
>> but in this particular case it might help...
>
> Thanks for this suggestion. I tried with -u but the timeout still
> takes at least 1 min. Is it not feasible to have a command line
> timeout where users can set it to something appropriate for their
> needs? For example, in our case we only need about 5 seconds at most.
hmm... when I do a "rpcinfo -t <ip-address> nfs" to a machine that
does not have a daemon listening I immediately get:
rpcinfo: RPC: Port mapper failure - Unable to receive: errno 111 (Connection refused) program 100003 is not available
So I not seeing here this hang is coming from...
steved.
next prev parent reply other threads:[~2012-10-11 13:23 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-05 15:09 Problem with rpcbind VDR User
2012-10-08 10:58 ` Steve Dickson
2012-10-08 16:47 ` VDR User
2012-10-09 23:37 ` Steve Dickson
2012-10-10 2:49 ` VDR User
2012-10-11 13:23 ` Steve Dickson [this message]
2012-10-11 15:02 ` VDR User
2012-10-15 20:28 ` Steve Dickson
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