[rabbitmq-discuss] Rabbit crash, new persister

John Apps johndapps at gmail.com
Sun Jun 20 14:58:55 BST 2010

This is a bit off the original topic, but I felt that, once again,
<Begin of Soapbox>

I have to ask what the rather strange approach to Windows is with the
RabbitMQ folks?

Bashing Windows might be a great hobby, not terribly helpful though.

I understand that RabbitMQ and others are awaiting Erlang support for X64
Windows, but to belittle the probably largest market you will find, and one
that is very stable now with Windows Server 2008 and 7, I do wonder what the
whole point is.

Why not come out with an explicit statement that RabbitMQ is simply NOT
supported on Windows? Make it clear from the beginning rather than writing
somewhat devious entries in discussion lists?

<End of soapbox>
On Sat, Jun 19, 2010 at 18:00, Matthew Sackman <matthew at rabbitmq.com> wrote:

> Hi Øyvind,
> On Sat, Jun 19, 2010 at 02:59:23PM +0200, Øyvind Tjervaag wrote:
> > Tested further with the changed folder, and was looking at the
> > contents of the mnesia store folder to see if I could see what was
> > happening. When I start up all my components, rabbit starts creating
> > store files (I publish at times faster than my consumer can get the
> > messages, but in normal operation the consumer should read off all the
> > messages in a timely manner..).
> Good, yes that's how it should all be working.
> > So, rabbit created, and happily deleted 42 store files before it
> > stopped again, without me touching any files/permissions etc. Have
> > attached the rabbit and sasl logs again, but the error is basically
> > the same as before. No access to the file it seems.
> This is bizarre and very strange. However, it seems similar to some
> other weird reports of file handling in Erlang under Windows, for
> example, http://www.erlang.org/cgi-bin/ezmlm-cgi/2/679
> We have in the past seen strange things going on with windows firewalls
> and such like. It's not beyond the realms of possibility that it's some
> virus scanner which is trying to scan the file at the same time as
> Rabbit's trying to delete it. Maybe try to see if you could turn any
> such things off?
> Also, in the recently released Erlang R14A, there are some comments in
> the release notes about changes regarding file handling under Windows.
> You might like to try that, though note that R14A is, as the name
> suggests, an alpha release.
> Or, the somewhat easier way out, would be to not run it under Windows!
> Matthew
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John Apps
(49) 171 869 1813
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