2001-10-22 17:33:55 +00:00
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2002-01-22 20:38:29 +00:00
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<!-- $Id$ -->
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2001-10-22 17:33:55 +00:00
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<META http-equiv="Content-Type" content="text/html; charset=ISO 8859-1">
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<META http-equiv="Content-Style-Type" content="text/css">
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<META name="author" lang="en" content="Michiel Broek">
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<META name="copyright" lang="en" content="Copyright Michiel Broek">
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<META name="description" lang="en" content="MBSE BBS Manual">
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<META name="keywords" lang="en" content="MBSE BBS, MBSE, BBS, manual, fido, fidonet, gateway, tosser, mail, tic, mailer">
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<TITLE>Nodelist and Nidediff processing.</TITLE>
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<LINK rel=stylesheet HREF="manual.css">
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<BODY>
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<BLOCKQUOTE>
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2002-01-22 20:38:29 +00:00
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<h5>Last update 22-Jan-2002</h5>
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2001-10-22 17:33:55 +00:00
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<P> <P>
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<H1>Nodelist and Nodediff processing</H1>
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<P>
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<H3>Introduction</H3>
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<P>
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A received a lot of questions about nodelist and nodediff processing, so
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I will describe here the setup of the development system for the Fidonet
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nodelist. First of all, it is <strong>very important</strong> that you
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use three separate directories to do the nodelist processing. This is to
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make sure that all stages are independent of each other, and if something
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goes wrong, you still have a working system. The three directories are:<br>
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<ol>
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<li><strong>/opt/mbse/ftp/pub/fido/nodelist</strong>, this is the public
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download area, the received diff's are stored here as well as the final
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compressed nodelists for download.
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<li><strong>/opt/mbse/tmp/nlwork</strong>, this is the working directory
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to apply diffs to the previous nodelist. This directory should allways
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contain the latest <strong>uncompressed</strong> nodelist.
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<li><strong>/opt/mbse/var/nodelist</strong>, this is the systems nodelist
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directory defined in mbsetup, menu 1.4.4
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</ol>
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In short the steps to process the nodediff's is as follows:
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<ol>
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<li>Receive the nodediff and store it for download.
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<li>Apply the diff to the latest nodelist.
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<li>Hatch the new compressed nodelist.
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<li>Store the new nodelist for download.
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<li>Unpack the new nodelist in the nodelist compiler directory.
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<li>Set the compile semafore.
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<li>Compile the nodelists.
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</ol>
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Next I will describe these steps in detail.
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<P> </P>
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<H3>The download area</H3>
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<P>
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First define the download area for the bbs. In my case, this is area 20. From
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here users can download the nodelists and nodediffs, files to the downlinks
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are send from here. Below is the example of my system.
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<P>
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<IMG SRC="images/nodelist.gif" Border="0" Alt="BBS download area 20">
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<P> </P>
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<H3>The NODEDIFF tic area</H3>
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<P>
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From your uplinks you usually receive NODEDIFF or NODEDIZZ files. Create a tic area for
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that purpose. I have keep# set to 5, this means the last 5 diff's are stored
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in the download directory, older ones are removed. Now you can receive
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nodediff files, store them for download, and send them to other nodes.
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<P>
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<IMG SRC="images/nodelist1.gif" Border="0" Alt="NODEDIZZ tic area">
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<P> </P>
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<H3>Apply the diff</H3>
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<P>
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We do this with the tic <strong>magic</strong> processor. In this example
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I have NODELIST.007 in the <strong>/opt/mbse/tmp/nlwork</strong> directory.
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Note that this filename is uppercase, they are usually stored and distributed
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as uppercase names. As I receive the diff files as zip, the filemask on
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my system is <strong>nodediff.z##</strong>.
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This means that the file with the name nodediff.z14 in the area NODEDIZZ
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is a match. The command that is executed expands to
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<strong>mbdiff /opt/mbse/tmp/nlwork/NODELIST /var/spool/mbse/ftp/pub/fido/nodelist/nodediff.z14 -quiet</strong>
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if the received nodediff is
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<strong>nodediff.z14</strong>.<br>The mbdiff program applies
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<strong>nodediff.z14</strong> against <strong>NODELIST.007</strong> in the
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<strong>/opt/mbse/tmp/nlwork</strong> directory. If this is successfull, a
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new <strong>NODELIST.014</strong> is created there, a compressed <strong>
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nodelist.z14</strong> is created there and <strong>NODELIST.007</strong> is
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removed.<br> If this operation fails, only <b>NODELIST.007</b> will stay
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in that directory.
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Because the ARC program for Linux isn't good for files, I
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left the Arc files command empty in the archiver setup. As a fallback the
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mbdiff program uses <strong>zip</strong> to create the compressed archive.<br>
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If creating the new nodelist fails for some reason, a missed diff or so,
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the whole processing stops here. The previous nodelist is still here and
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you can manually correct the situation. So, if you missed a diff, see that
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you get it and manually give the <strong>mbdiff</strong> commands as user
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<strong>mbse</strong> until you are up to date. Or, place the latest
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uncompressed nodelist in the directory <strong>/opt/mbse/tmp/nlwork</strong>.
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<P>
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<IMG SRC="images/nodelist2.gif" Border="0" Alt="Magic to apply the nodelist diff file">
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<P> </P>
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<H3>Processing the new nodelist</H3>
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<P>
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Now that we have created the new compressed nodelist, it has to go somewhere.
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The file <strong>nodelist.z14</strong> is in the directory
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<strong>/opt/mbse/tmp/nlwork</strong>. The example for the hatch manager
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is shown below. The hatch manager runs automatic with the comand
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<strong>mbfido tic</strong>. This setup will hatch the new nodelist in the
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tic area <strong>NODELIST</strong> The two screens below show the hatch and
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tic setup for this area.
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<P>
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<IMG SRC="images/nodelist3.gif" Border="0" Alt="Hatch new nodelist">
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<IMG SRC="images/nodelist4.gif" Border="0" Alt="TIC area for new nodelist">
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<P>
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Now that we have hatched the new nodelist and processed it the new nodelist
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is stored in in the download area, and maybe send some copies to downlinks.
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We now have to feed it to the nodelist compiler for our own system.
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We use a tic <strong>magic</strong> command to do
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that. In this case we unpack the nodelist in <strong>/opt/mbse/var/nodelist</strong>
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and set the <strong>compile</strong> semafore so that the <strong>mbindex
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</strong> will compile the new nodelist. Don't be afraid that the unpacked
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nodelists will acumulate in the nodelist directory, <strong>mbindex</strong>
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will handle that, only the latest two nodelists are kept there. The
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<strong>mbindex</strong> program is started by the taskmanager <strong>
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mbtask</strong>.
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<P>
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<IMG SRC="images/nodelist5.gif" Border="0" Alt="Magic copy nodelist and trigger compiler">
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<P> </P>
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2002-01-22 20:38:29 +00:00
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<A HREF="index.htm"><IMG SRC="images/b_arrow.gif" ALT="Back" Border="0">Go Back</A>
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2001-10-22 17:33:55 +00:00
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</BLOCKQUOTE>
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</HTML>
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