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Article #210Re: Socket Keep-awake Option?
From: Russ Nelson
Date: Sat, 18 May 1991 16:42
Date: Sat, 18 May 1991 16:42
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2156 bytes
In article <memo.36812@cix.compulink.co.uk> Gareth Howell <garethh@cix.compulink.co.uk> writes: Has anybody modified NOS to support this option on its sockets? It sure would be useful sometimes. No, it would NOT be useful. Keep-alives are the work of the devil. However, machines *do* crash, networks *do* go down, etc. So what to do? The solution is to apply an upper bound to the amount of resources that can be consumed by your networking software. Whenever the system runs out of resources, it recovers resources from the least recently used (LRU) connection. A network package either needs keep-alives (gag), or resource recovery. Phil is, to my mind, remiss in not including resource recovery in NOS, given his dislike of keep-alives. Let's face it, in an amateur environment, end nodes do dissappear temporarily occasionally; the ability to detect this, reset the session, and restart the mail transfer at the next smtp timer tick would increase overall system availability. If it's only temporary, why give up on it? --russ <nelson@clutx.clarkson.edu> I'm proud to be a humble Quaker. Clear cutting is criminal, spiking trees is criminal, and using hyperbole of this magnitude in a serious discussion is criminal. -- Irv Chidsey -- ***************************************************************** ___ ____ ___ _ _ ___ ___ ___ ___ ___ ___ _ _ /__/ / / / / /\ / /__ / /__//__// /__//__ /\ / / \ / / __/_ / / /__ / / // //__ / //__ / /
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 12f11c,4baad5f5ca8690ec,start X-Google-Attributes: gid12f11c,public X-Google-ArrivalTime: 1991-05-18 10:21:43 PST Path: arc1-ca.pugleaf.net!gmdzi!unido!infoac!news-mail-gateway From: nelson@sun.soe.CLarkson.EDU (Russ Nelson) Newsgroups: dnet.ham Subject: Re: Socket Keep-awake Option? Message-ID: <9105180239.AA16808@sun.soe.clarkson.edu> Date: 18 May 91 16:42:45 GMT Sender: root@infoac.rmi.de (INFOAC-Operator) Reply-To: "aka NELSON@CLUTX.BITNET" <nelson@clutx.clarkson.edu> Organization: RMI Net INFO.box Systems * Aachen * Hamburg * Flensburg Lines: 31