From: Junio C Hamano <gitster@pobox.com>
Date: Fri, 14 Mar 2008 00:19:53 GMT
Subject: Re: [PATCH] gitweb: Support caching projects list
Message-ID: <7v63vqw40m.fsf@gitster.siamese.dyndns.org>
In-Reply-To: <20080313231413.27966.3383.stgit@rover>

Petr Baudis <pasky@suse.cz> writes:

> To prevent contention when multiple accesses coincide with cache
> expiration, the timeout is postponed to time()+120 when we start
> refreshing. When showing cached version, a disclaimer is shown at the
> top of the projects list.

Isn't this still racy when two requests come at about the same time?
Perhaps you can avoid it by using a lockfile?