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From: "Bert Huijben" <bert@qqmail.nl>
To: "'Ivan Zhakov'" <ivan@visualsvn.com>,
	<dev@subversion.apache.org>
References: <20151126080536.D6E2A3A024F@svn01-us-west.apache.org>
 <CABw-3Yf5=SKWyXt1mQ_zXi8SWfi6ZFvO4r3m0T2TXtT3g8xQLw@mail.gmail.com>
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 <CABw-3Yf5=SKWyXt1mQ_zXi8SWfi6ZFvO4r3m0T2TXtT3g8xQLw@mail.gmail.com>
Subject: RE: svn commit: r1716575 - in
 /subversion/trunk/subversion/libsvn_ra_serf: commit.c ra_serf.h util.c
Date: Thu, 26 Nov 2015 09:41:25 +0100
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> -----Original Message-----
> From: Ivan Zhakov [mailto:ivan@visualsvn.com]
> Sent: donderdag 26 november 2015 09:19
> To: dev@subversion.apache.org; Bert Huijben <bert@qqmail.nl>
> Subject: Re: svn commit: r1716575 - in
> /subversion/trunk/subversion/libsvn_ra_serf: commit.c ra_serf.h util.c
>=20
> On 26 November 2015 at 11:05, <rhuijben@apache.org> wrote:
> >
> > Author: rhuijben
> > Date: Thu Nov 26 08:05:36 2015
> > New Revision: 1716575
> >
> > URL: http://svn.apache.org/viewvc?rev=3D1716575&view=3Drev
> > Log:
> > In ra_serf: when a to-be committed file has text and property =
changes to
> be
> > applied, pipeline both requests.
> >
> This could fail over HTTP/2 if both pipelined requests will be handled
> by different worker threads: FSFS doesn't allow concurrent access to
> transactions.

I'm surprised to learn that. I would have guessed concurrent access was =
always part of the design of the fs layer, by the way we use it in =
mod_dav.

I hope we can somehow lift that restriction, as improving commit =
performance over mod_dav is high on a few wish lists.

	Bert