[squeak-dev] Re: [Pharo-project] SqueakSource down... again

Nikolay Suslov nsuslovi at gmail.com
Tue Feb 22 09:06:52 UTC 2011

On Tue, Feb 22, 2011 at 6:54 AM, Casey Ransberger
<casey.obrien.r at gmail.com>wrote:

> Oooh. WebDAV. Nice, familiar, term. We could also throw in rsync and get
> read only mirrors:)

And are there any plans to realize WebDav server protocol just in
Smalltalk for the new Andreas's WebServer or Kom? Swazoo/Aida, seems to be
has just an unfinished and not working WebDav port  from it's VisualWorks


> On Mon, Feb 21, 2011 at 11:49 AM, Andreas Raab <andreas.raab at gmx.de>wrote:
>> On 2/21/2011 1:31 PM, Miguel Cobá wrote:
>>> El lun, 21-02-2011 a las 19:25 +0100, Michael Haupt escribió:
>>>> Hi,
>>>> at HPI, we have a SqueakSource with a GemStone backend. The only
>>>> downtimes we experienced were due to necessary maintenance.
>>> I think the number of users that hit squeaksource.com vs HPS's own
>>> everyday is a key factor in the perceived performance and net uptime of
>>> each installation.
>> It's not. We used SS at Teleplace at first and it died every other day due
>> to heavy commit/update frequency. When we switched to Gemstone we never had
>> these problems again. The problem with SS is that it has very poor
>> concurrency control. It just trips over its own feet when several people
>> commit and update at the same time. I was actually looking at fixing these
>> problems at first only to realize that SS was clearly designed as a
>> single-user system with very little thoughts being put into where and how
>> concurrency plays a role in various operations.
>> When we switched to Gemsource, these problems went away (though I'm not
>> fully sure why). But they did get replaced with others, most notably the
>> problem of our entire source code being locked in a system that we would be
>> unable to access if our license ever expires. And although we had a sweet
>> deal with Gemstone, due to the sweetness of the deal this happened every six
>> months and a couple of times in critical release situations. After it
>> happened once too many it was deemed to be no longer acceptable and we
>> switched to a simple WebDAV based repository. Which has served us well.
>> Cheers,
>>  - Andreas
> --
> Casey Ransberger
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