From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: References: Date: Fri, 17 Apr 2009 15:15:25 -0700 Message-ID: <13426df10904171515g571f7781x38ca528cfbce1149@mail.gmail.com> From: ron minnich To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Plan9 - the next 20 years Topicbox-Message-UUID: e4b1fba4-ead4-11e9-9d60-3106f5b1d025 if you want to look at checkpointing, it's worth going back to look at Condor, because they made it really work. There are a few interesting issues that you need to get right. You can't make it 50% of the way there; that's not useful. You have to hit all the bits -- open /tmp files, sockets, all of it. It's easy to get about 90% of it but the last bits are a real headache. Nothing that's come along since has really done the job (although various efforts claim to, you have to read the fine print). ron