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Re: IETF meeting: Refreshing locks

From: Stefan Eissing <stefan.eissing@greenbytes.de>
Date: Mon, 25 Feb 2002 09:58:21 +0100
Cc: w3c-dist-auth@w3.org
To: "Clemm, Geoff" <gclemm@rational.com>
Message-Id: <D1D865AB-29CD-11D6-BF5C-00039384827E@greenbytes.de>

Am Sonntag den, 24. Februar 2002, um 00:53, schrieb Clemm, Geoff:

> The paragraph referred to was in section 9.8:
>
>    The timeout counter SHOULD be restarted any time an owner of 
> the lock
>    sends a method to any member of the lock, including unsupported
>    methods, or methods which are unsuccessful.  However the lock 
> MUST be
>    refreshed if a refresh LOCK method is successfully received.
>
> Unfortunately, I cannot remember the rationale for removing this
> paragraph, although it might have been that servers aren't actually
> doing this in practice?

There were several issues in this:
1. unsupported methods might not even be seen by the WebDAV server
    application (or recognized as WebDAV methods).
2. Refreshing locks on PROPFIND by _any_ client (PROPFIND does not
    check on If: headers) will give unpredictable timeout behavior.
    Checking with PROPFIND if a lock is still there has counterproductive
    side effects.

That's the, most likely incomplete, list I remember.

//Stefan


> Cheers,
> Geoff
>
> -----Original Message-----
> From: Jason Crawford [mailto:ccjason@us.ibm.com]
> Sent: Monday, February 18, 2002 7:01 PM
> To: Julian Reschke
> Cc: w3c-dist-auth@w3.org
> Subject: IETF meeting: Refreshing locks
>
>
>
> What does the following text from the SLC IETF meaning mean?
>
>> Refreshing Locks....
>>
>> Consensus was to delete paragraph on lock refresh.
>> Eric - clients seem to be expecting locks to hang around, when they
> expire it causes problems.
>
>
> ------------------------------------------
> Phone: 914-784-7569,   ccjason@us.ibm.com
>
>
Received on Monday, 25 February 2002 03:58:38 GMT

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