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<H1>Re: [MUD-Dev] Persistance/stability</H1>
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<LI><em>To</em>: <A HREF="mailto:mud-dev#null,net">mud-dev#null,net</A></LI>
<LI><em>Subject</em>: Re: [MUD-Dev] Persistance/stability</LI>
<LI><em>From</em>: <A HREF="mailto:cg#ami-cg,GraySage.Edmonton.AB.CA">cg#ami-cg,GraySage.Edmonton.AB.CA</A> (Chris Gray)</LI>
<LI><em>Date</em>: Sat, 2 Aug 97 09:05:33 MST</LI>
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<PRE>
[Chris L:]
:[Miro S:]
:&gt;MUSHes and MOOs save everything across the reboot. MOOs even save the
:&gt;active processes (something Cold doesn't do, and I don't know about
:&gt;MUSH).

:FWIW I save active processes at runtime (ie across crashes).  Well,
:sorta -- there's some caching and delays on the writes.  Upon restart
:the machine will resume exactly as of some state minutes before the
:crash.

Saving the state of everything without saving information about how that
state is being changed would kind of defeat the point of saving. I'm more
of an event-based model, but I don't actually save the list of pending
events. What I do is allow a machine to have an action which is called
on a server restart. Similarly there is one called on a shutdown. That
allows explicit setup to gracefully resume across shutdown/restart. For
crashes, I just go with an old, but consistent, copy of the whole db.
That can result in the timing of things changing a bit, but I doubt if
its really noticeable, since there are likely to be a lot of things
getting "undone" when restarting from a pre-crash snapshot.

--
Chris Gray   cg#ami-cg,GraySage.Edmonton.AB.CA

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<li><strong><A NAME="00347" HREF="msg00347.html">[MUD-Dev] New Topic: Butthead features</A></strong>
<ul compact><li><em>From:</em> Jeff Kesselman &lt;jeffk#tenetwork,com&gt;</li></ul>
<li><strong><A NAME="00346" HREF="msg00346.html">Re: [MUD-Dev] Persistance/stability</A></strong>
<ul compact><li><em>From:</em> Brandon Gillespie &lt;brandon#roguetrader,com&gt;</li></ul>
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<ul><li>Thread context:
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<LI><STRONG>Re: [MUD-Dev] Persistance/stability</STRONG>, <EM>(continued)</EM>
<ul compact>
<LI><strong><A NAME="00314" HREF="msg00314.html">Re: [MUD-Dev] Persistance/stability</A></strong>, 
Miroslav Silovic <a href="mailto:silovic#mare,zesoi.fer.hr">silovic#mare,zesoi.fer.hr</a>, Thu 31 Jul 1997, 23:19 GMT
<UL>
<LI><strong><A NAME="00322" HREF="msg00322.html">Re: [MUD-Dev] Persistance/stability</A></strong>, 
Matt Chatterley <a href="mailto:root#mpc,dyn.ml.org">root#mpc,dyn.ml.org</a>, Fri 01 Aug 1997, 13:21 GMT
</LI>
<LI><strong><A NAME="00330" HREF="msg00330.html">Re: [MUD-Dev] Persistance/stability</A></strong>, 
clawrenc <a href="mailto:clawrenc#cup,hp.com">clawrenc#cup,hp.com</a>, Sat 02 Aug 1997, 06:24 GMT
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</UL>
</LI>
<LI><strong><A NAME="00357" HREF="msg00357.html">Re: [MUD-Dev] Persistance/stability</A></strong>, 
Adam Wiggins <a href="mailto:nightfall#user1,inficad.com">nightfall#user1,inficad.com</a>, Mon 04 Aug 1997, 02:56 GMT
</LI>
<LI><strong><A NAME="00343" HREF="msg00343.html">Re: [MUD-Dev] Persistance/stability</A></strong>, 
Chris Gray <a href="mailto:cg#ami-cg,GraySage.Edmonton.AB.CA">cg#ami-cg,GraySage.Edmonton.AB.CA</a>, Sun 03 Aug 1997, 02:19 GMT
<UL>
<LI><strong><A NAME="00346" HREF="msg00346.html">Re: [MUD-Dev] Persistance/stability</A></strong>, 
Brandon Gillespie <a href="mailto:brandon#roguetrader,com">brandon#roguetrader,com</a>, Sun 03 Aug 1997, 04:45 GMT
</LI>
<LI><strong><A NAME="00347" HREF="msg00347.html">[MUD-Dev] New Topic: Butthead features</A></strong>, 
Jeff Kesselman <a href="mailto:jeffk#tenetwork,com">jeffk#tenetwork,com</a>, Sun 03 Aug 1997, 06:40 GMT
<UL>
<LI><strong><A NAME="00351" HREF="msg00351.html">Re: [MUD-Dev] New Topic: Butthead features</A></strong>, 
Matt Chatterley <a href="mailto:root#mpc,dyn.ml.org">root#mpc,dyn.ml.org</a>, Sun 03 Aug 1997, 15:48 GMT
<UL>
<LI><strong><A NAME="00365" HREF="msg00365.html">Re: [MUD-Dev] New Topic: Butthead features</A></strong>, 
Jeff Kesselman <a href="mailto:jeffk#tenetwork,com">jeffk#tenetwork,com</a>, Mon 04 Aug 1997, 08:57 GMT
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