From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: Date: Fri, 9 Sep 2005 19:06:49 -0400 From: Russ Cox To: Francisco Ballesteros , Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu> Subject: Re: [9fans] reliability and failing over. In-Reply-To: <600308d605090916023b856b47@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline References: <600308d605090913554224787d@mail.gmail.com> <20050909210534.GI4207@server4.lensbuddy.com> <600308d6050909151067389b35@mail.gmail.com> <599f06db050909155055507829@mail.gmail.com> <600308d605090916023b856b47@mail.gmail.com> Cc: Topicbox-Message-UUID: 866beafe-ead0-11e9-9d60-3106f5b1d025 > Plan B usage shows that latency is the biggest problem. > I admit that only in unions, but if you join N different file servers > in a directory, and then you dup the latency, it may be a problem. > A workaround is just not to join too many servers, but it's a workaround, > not a fix. Of course, one could issue walks in parallel to all members of a union and then you'd get rid of this particular problem. And doing so would be easier in user space. Russ