From: Jeff King <peff@peff.net>
To: Junio C Hamano <gitster@pobox.com>
Cc: "Shawn O. Pearce" <spearce@spearce.org>, git@vger.kernel.org
Subject: Re: [PATCH] Revert "retry request without query when info/refs?query fails"
Date: Thu, 20 Sep 2012 12:24:56 -0400 [thread overview]
Message-ID: <20120920162456.GA25418@sigill.intra.peff.net> (raw)
In-Reply-To: <7vlig5cilt.fsf@alter.siamese.dyndns.org>
On Wed, Sep 19, 2012 at 11:29:34PM -0700, Junio C Hamano wrote:
> "Shawn O. Pearce" <spearce@spearce.org> writes:
>
> > This reverts commit 703e6e76a14825e5b0c960d525f34e607154b4f7.
> >
> > Retrying without the query parameter was added as a workaround
> > for a single broken HTTP server at git.debian.org[1]. The server
> > was misconfigured to route every request with a query parameter
> > into gitweb.cgi. Admins fixed the server's configuration within
> > 16 hours of the bug report to the Git mailing list, but we still
> > patched Git with this fallback and have been paying for it since.
>
> As the consequence of the above, the only two things we know about
> the servers in the wild are (1) a misconfiguration that requires
> this retry was once made, so it is not very unlikely others did the
> same misconfiguration, and (2) those unknown number of servers have
> been happily serving the current clients because the workaround
> patch have been hiding the misconfiguration ever since.
The misconfiguration was pretty wild in this case. I'd be much more
worried about stupidly non-compliant servers that will not serve
"foo/bar" when asked for "foo/bar?key=value".
> But as long as the failure diagnosis from updated clients that
> revert this workaround is sufficient to allow such misconfigured
> servers, I think it is OK. We might see a large number of small
> people having to run around and fix the configuration as a fallout,
> though.
I think Shawn's revert is the right thing to do. But it is not complete
without the manual workaround. I'm putting that patch together now and
should have it out in a few minutes.
> > Most Git hosting services configure the smart HTTP protocol and the
> > retry logic confuses users when there is a transient HTTP error as
> > Git dropped the real error from the smart HTTP request. Removing the
> > retry makes root causes easier to identify.
>
> Does that hold true also for dumb only small people installations?
> They are the ones that need more help than the large installations
> staffed sufficiently and run smart http gateway.
For the most part, yes. They will get a useful error out of the smart
request if there is a transient error, the repo does not exist, etc.
The real fallout is the people who are hitting a broken or misconfigured
server and may get a confusing error code (in the one case we know
about, it was a 404, but it really could be anything, depending on the
exact nature of the misconfiguration).
-Peff
next prev parent reply other threads:[~2012-09-20 16:25 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-20 2:55 [PATCH] Disable dumb HTTP fallback with GIT_CURL_FALLBACK=0 Shawn O. Pearce
2012-09-20 3:22 ` Shawn Pearce
2012-09-20 3:52 ` Jeff King
2012-09-20 3:48 ` Jeff King
2012-09-20 5:57 ` Shawn Pearce
2012-09-20 5:58 ` [PATCH] Revert "retry request without query when info/refs?query fails" Shawn O. Pearce
2012-09-20 6:29 ` Junio C Hamano
2012-09-20 6:31 ` Junio C Hamano
2012-09-20 16:24 ` Jeff King [this message]
2012-09-20 16:59 ` [PATCH 0/2] smart http toggle switch fails" Jeff King
2012-09-20 17:00 ` [PATCH 1/2] remote-curl: rename is_http variable Jeff King
2012-09-20 17:05 ` [PATCH 2/2] remote-curl: let users turn off smart http Jeff King
2012-09-20 17:53 ` Junio C Hamano
2012-09-20 18:12 ` Jeff King
2012-09-20 18:36 ` Junio C Hamano
2012-09-20 20:51 ` Jeff King
2012-09-20 21:15 ` Junio C Hamano
2012-09-20 21:30 ` Jeff King
2012-09-21 17:34 ` Junio C Hamano
2012-09-21 17:41 ` Jeff King
2012-09-20 17:24 ` [PATCH] Disable dumb HTTP fallback with GIT_CURL_FALLBACK=0 Jeff King
2012-09-20 23:05 ` Shawn Pearce
2012-09-21 5:26 ` Jeff King
2012-09-21 14:19 ` Shawn Pearce
2012-10-01 21:23 ` [PATCH] Retry HTTP requests on SSL connect failures Shawn O. Pearce
2012-10-01 21:47 ` Junio C Hamano
2012-10-01 21:53 ` Junio C Hamano
2012-10-01 22:23 ` Jeff King
2012-10-01 23:20 ` Junio C Hamano
2012-10-01 22:18 ` Jeff King
2012-10-02 2:38 ` Shawn Pearce
2012-10-02 13:57 ` Drew Northup
2012-10-02 0:14 ` Drew Northup
2012-09-20 4:14 ` Re* [PATCH] Disable dumb HTTP fallback with GIT_CURL_FALLBACK=0 Junio C Hamano
2012-09-20 4:14 ` [PATCH 1/2] Disable dumb HTTP fallback with GIT_DUMB_HTTP_FALLBACK=false Junio C Hamano
2012-09-20 4:14 ` [PATCH 2/2] remote-curl: make dumb-http fallback configurable per URL Junio C Hamano
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