"H. Peter Anvin" <h...@zytor.com> writes:

> On 11/10/2013 12:17 PM, Eric Wong wrote:
>> "H. Peter Anvin" <h...@zytor.com> wrote:
>>> When a remote server is unavailable or very slow, some git commands can
>>> stall out indefinitely.  It would be a very good thing if remote
>>> commands -- but especially git fetch -- could be given a timeout.
>> We've had SO_KEEPALIVE on git and ssh transports since e47a8583 (2011-12-06)
>> SO_KEEPALIVE for http was added recently (a15d069a) and will be in git 1.8.5
>> Do you want a shorter timeout for slow (but still alive) servers?
> Yes; note that SO_KEEPALIVE only guarantees that the server is alive at
> the TCP socket level.  If the server is overloaded but technically alive
> it may still make no meaningful forward progress.

Which means that your original wish may not be granted with
SO_KEEPALIVE at all, no?  I was wondering if you wanted a forced
timeout based on alarm(2), something similar to what you added to
git-daemon in 960deccb (git-daemon: timeout, eliminate double DWIM,
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