From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,1eef1e815cf70416 X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Received: by 10.68.193.129 with SMTP id ho1mr2921519pbc.8.1339254848699; Sat, 09 Jun 2012 08:14:08 -0700 (PDT) Path: l9ni34037pbj.0!nntp.google.com!news2.google.com!news1.google.com!newsfeed2.dallas1.level3.net!news.level3.com!bloom-beacon.mit.edu!newsswitch.lcs.mit.edu!nntp.TheWorld.com!.POSTED!not-for-mail From: Robert A Duff Newsgroups: comp.lang.ada Subject: Re: Distributed Systems Annex, data sharing between programs Date: Sat, 09 Jun 2012 11:14:07 -0400 Organization: The World Public Access UNIX, Brookline, MA Message-ID: References: <8055acf5-188f-4b34-b4f0-83d70fee54f8@googlegroups.com> <96feb838-e0d3-4d06-abf0-79a8e74b5746@e20g2000vbm.googlegroups.com> <54af7ad7-7268-4d84-bafa-542e380a58f6@n16g2000vbn.googlegroups.com> <0d661453-423c-484b-90cd-4e80ffe1db5b@6g2000vbv.googlegroups.com> NNTP-Posting-Host: shell01.theworld.com Mime-Version: 1.0 X-Trace: pcls6.std.com 1339254847 31290 192.74.137.71 (9 Jun 2012 15:14:07 GMT) X-Complaints-To: abuse@TheWorld.com NNTP-Posting-Date: Sat, 9 Jun 2012 15:14:07 +0000 (UTC) User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/21.3 (irix) Cancel-Lock: sha1:aE/MbUD1hLL2/K8TXEL5Xk/2Bnc= Content-Type: text/plain; charset=us-ascii Date: 2012-06-09T11:14:07-04:00 List-Id: Maciej Sobczak writes: > Now, the contrary example. > > You have a system with several thousand machines and you want to send > them new configuration or something. Do you know about pragma Asynchronous (aspect Asynchronous in Ada 2012)? It causes an "RPC" to behave like a message rather than a call (so it's not really an "RPC" anymore). So with DSA, you can loop through those thousand machines, and do an asynchronous "call" to each. This just sends a thousand messages -- no waiting for replies, no dealing with failed nodes, etc. - Bob