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- Newsgroups: comp.sys.sgi
- Path: sparky!uunet!gatech!darwin.sura.net!sgiblab!sgigate!odin!exacto.dallas.sgi.com!fouts
- From: fouts@exacto.dallas.sgi.com (Christopher Fouts)
- Subject: Re: BZ on diskless Indigo's
- Message-ID: <1993Jan25.211759.20963@odin.corp.sgi.com>
- Sender: news@odin.corp.sgi.com (Net News)
- Nntp-Posting-Host: exacto.dallas.sgi.com
- Organization: Silicon Graphics (Dallas, TX)
- References: <1993Jan25.170535.17638@news.acns.nwu.edu>
- Date: Mon, 25 Jan 1993 21:17:59 GMT
- Lines: 52
-
- In article <1993Jan25.170535.17638@news.acns.nwu.edu>, williams@casbah.acns.nwu.edu (Gus Williams) writes:
- |>
- |>
- |> We have a lab of 8 Indigo's (on which the graduate students
- |> have recently discovered the usefulness of bz :^) ) however
- |> there is a problem. 3 of the Indigo's are diskless, when
- |> bz is fired up on the diskless stations initially nearly all
- |> of the 5 other diskfull stations see it, they soon lose contact
- |> though. The bz program on the diskless station usually sees only
- |> a couple of the other running programs, then soon loses contact.
-
- I've seen problems on complex networks with lots o' subnets, but haven't
- heard of any problems on the same subnet. Is there a heavy load on the
- network? Does ping show 0% packet loss between the diskless and non-diskless
- machines?
-
- |> Occasionly bz on the diskless stations doesn't see any other
- |> bz programs running.
-
- Bz will only add a player after it 1) receives game packets from the other
- player's machine, and 2) it receives a acknowledgement packet from the
- other machine that it is receiving packets. If you have packet loss, it's
- conceivable that the acknowledgement packets just happen to be among
- those being dropped (so the other players aren't added).
-
- Check the log file, /usr/tmp/bz.log. It may provide some clue as to who is
- not receiving the packets (check on all machines involved).
-
- If you're playing the default game (with team flags enabled), bz has to do
- a bit more validation of players to make sure that everybody can see
- everybody else (due to the way flags are treated). When you play "bz -noflag",
- this constraint is relaxed. In this case it is only necessary that you
- and the candidate player to be added see each other, not that he see
- everybody else that you can see. This may or may not make any sense in the
- way I have described it, but just try "bz -noflag" (on all the machines) to
- see if that helps. You'll be able to choose teams, but no flags will appear.
-
- Perhaps one of the SGI networking gurus can suggest other possibilities.
-
- By the way, what's the configuration of the diskless stations, particularly
- memory? The process size of bz is ~8MB according to ps. If your diskless
- systems have less than 32MB, you're probably swapping which could be impacting
- the net. :^)
-
- --
-
- Chris Fouts Email: fouts@dallas.sgi.com
- Systems Engineer Phone: (214)-788-4122
- Silicon Graphics Computer Systems Vmail: 8714
- Dallas, TX
-
- "If you rush something, you mistakes."
-