Linux CIFS filesystem development
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From: "Christopher R. Hertel" <crh@samba.org>
To: Volker.Lendecke@SerNet.DE
Cc: Steve French <smfrench@gmail.com>,
	cifs-protocol@samba.org, samba-technical@lists.samba.org,
	Jeff Layton <jlayton@redhat.com>,
	linux-cifs@vger.kernel.org
Subject: Re: cifs client timeouts and hard/soft mounts
Date: Mon, 06 Dec 2010 14:38:37 -0600	[thread overview]
Message-ID: <4CFD49CD.5010002@samba.org> (raw)
In-Reply-To: <E1PPhWb-00EZX7-6F@intern.SerNet.DE>

Volker Lendecke wrote:
> On Mon, Dec 06, 2010 at 12:54:30PM -0600, Christopher R. Hertel wrote:
>> There are a lot of companies out there that do WAN acceleration and each of
>> them do things differently, so there is no good answer to your quite
>> rational question.  Some of the vendors are very focused on "just like the
>> real thing" behavior while others are willing to compromise behavior in
>> favor of acceleration.
>>
>> The best-known product in this market would be Riverbed.  BlueCoat is
>> another, I think.
> 
> Sorry, but if a WAN accelerator does not have the smarts to
> see that if a client sends smbechos, it is in trouble, then
> that WAN accelerator is just broken. It does not necessarily
> need to send these echos across the WAN link, but it must
> trigger its own server liveliness check at this point.

I agree.

That's why these companies hire me, though.  They have *no clue* when it
comes to CIFS and they run into brick walls at full speed.

When it comes down to it, though, anyone with smarts and half a clue would
avoid SMB/CIFS if at all possible.  Most of what we do with Samba and the
CIFS client is mitigate stupidity.  :)

...and we're good at it too!

Chris -)-----

-- 
"Implementing CIFS - the Common Internet FileSystem" ISBN: 013047116X
Samba Team -- http://www.samba.org/     -)-----   Christopher R. Hertel
jCIFS Team -- http://jcifs.samba.org/   -)-----   ubiqx development, uninq.
ubiqx Team -- http://www.ubiqx.org/     -)-----   crh@ubiqx.mn.org
OnLineBook -- http://ubiqx.org/cifs/    -)-----   crh@ubiqx.org

  reply	other threads:[~2010-12-06 20:38 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-04  2:28 cifs client timeouts and hard/soft mounts Jeff Layton
     [not found] ` <20101203212811.17594274-9yPaYZwiELC+kQycOl6kW4xkIHaj4LzF@public.gmane.org>
2010-12-04  3:54   ` [cifs-protocol] " Christopher R. Hertel
2010-12-04  8:13     ` Volker Lendecke
     [not found]       ` <E1POnFL-00BKg9-JW-dqLtpHMqGvUyWpdLl23E4A@public.gmane.org>
2010-12-04 11:44         ` Jeff Layton
2010-12-04 12:25           ` Shirish Pargaonkar
2010-12-04 13:09             ` Jeff Layton
     [not found]               ` <20101204080942.42be63da-9yPaYZwiELC+kQycOl6kW4xkIHaj4LzF@public.gmane.org>
2010-12-04 14:06                 ` Shirish Pargaonkar
     [not found]                   ` <AANLkTim45G=pLwznde8S_b=FGCnYyO29Tnokghs0qZ-y-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-12-04 14:22                     ` Jeff Layton
2010-12-04 14:46                       ` Shirish Pargaonkar
     [not found]                         ` <AANLkTimN0F5KyM7r1+k3Y3Ki+kwQukAr4uXzRJuMVZtX-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-12-04 16:55                           ` Jeff Layton
     [not found]             ` <AANLkTinsm=b5Pezzo4m6Jbmq96EcYas4Hsw0nhxfb4m6-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-12-04 20:17               ` Christopher R. Hertel
2010-12-04 12:30           ` Shirish Pargaonkar
     [not found]           ` <20101204064452.46ac24c7-9yPaYZwiELC+kQycOl6kW4xkIHaj4LzF@public.gmane.org>
2010-12-04 12:34             ` Shirish Pargaonkar
2010-12-04 20:04             ` Christopher R. Hertel
2010-12-04 19:46       ` Christopher R. Hertel
     [not found]     ` <4CF9BB65.2010307-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>
2010-12-04 11:28       ` Jeff Layton
2010-12-04 19:49         ` Christopher R. Hertel
2010-12-04  8:12 ` Volker Lendecke
2010-12-06  1:42   ` Steve French
     [not found]     ` <AANLkTi=MCgZb=we2OEtxJ4DZ==sVmRLd8aQKeMU7vvKt-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-12-06  2:06       ` Jeff Layton
2010-12-06  2:16         ` Steve French
     [not found]           ` <AANLkTik4Vh5hqWwVngjCC7v1ST1YxAP9LvQbcqKDhWHp-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-12-06  2:30             ` Jeff Layton
2010-12-06  4:34             ` Volker Lendecke
     [not found]               ` <E1PPSnw-00DDbs-Va-dqLtpHMqGvUyWpdLl23E4A@public.gmane.org>
2010-12-06 16:28                 ` Steve French
2010-12-06 16:49                   ` [cifs-protocol] " simo
     [not found]                     ` <1291654155.3167.6.camel-akOVU7JyYd8WIfilqQrPtNi2O/JbrIOy@public.gmane.org>
2010-12-06 17:06                       ` Christopher R. Hertel
2010-12-06 17:17                         ` Steve French
2010-12-06 17:01                   ` Christopher R. Hertel
     [not found]                     ` <4CFD16D8.4090207-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>
2010-12-06 17:42                       ` Jeff Layton
     [not found]                         ` <20101206124255.7ea8a8a9-9yPaYZwiELC+kQycOl6kW4xkIHaj4LzF@public.gmane.org>
2010-12-06 18:49                           ` Jeremy Allison
2010-12-06 18:54                           ` Christopher R. Hertel
     [not found]                             ` <4CFD3166.4000800-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>
2010-12-06 20:17                               ` Volker Lendecke
2010-12-06 20:38                                 ` Christopher R. Hertel [this message]
     [not found]                                   ` <4CFD49CD.5010002-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>
2010-12-06 20:42                                     ` Volker Lendecke
2010-12-06 20:44                                     ` Steve French
     [not found]                                       ` <AANLkTim1-m=d-A6yp4bWpYrEeqN_t49aHnAGPQEjrob_-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-12-06 20:52                                         ` Christopher R. Hertel
     [not found]                                           ` <4CFD4D15.60103-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org>
2010-12-06 22:45                                             ` [cifs-protocol] " Christopher R. Hertel
2010-12-07 20:34                                 ` Matt Ficken (Insight Global)
     [not found]                                   ` <673E6032983AF84185CE49D109B4F40A526665-Jfd81uAzPQsTaQvdokkCPVir+X/St4rqwBk/1ggFUS45P9zcU8sUGwC/G2K4zDHf@public.gmane.org>
2010-12-07 20:53                                     ` Christopher R. Hertel
2010-12-06  2:46   ` Andrew Bartlett
2010-12-06  4:35     ` Volker Lendecke

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