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OVERCHAN(8)               InterNetNews Documentation               OVERCHAN(8)

NAME
       overchan - Batch update the INN overview database

SYNOPSIS
       overchan [file ...]

DESCRIPTION
       overchan reads overview data from the specified files or from standard
       input if no files are specified, and writes that data into the INN
       overview database.  (The file "-" means to read data from standard
       input as well.)

       Normally, overview data is stored by innd for articles as they're
       accepted.  For performance, however, it's sometimes useful to have
       overview data written by a separate process.  To do this, set
       useoverchan to true in inn.conf to tell innd to not write overview data
       directly and then add an overchan channel in newsfeeds:

           overview!:*:Tc,WnteO:<pathbin>/overchan

       where <pathbin> is pathbin in inn.conf.  Additionally, overchan can be
       used to bulk-load overview data from appropriately formatted batch
       files (such as overflow files from an overchan channel).

       Each line of input should have the following format:

           <token> <arrived> <expires> <data>

       where <token> is the storage API token of the article in textual form
       (surrounded by "@" characters), <arrived> is the arrival timestamp of
       the article in seconds since epoch, <expires> is the expiration time of
       the article in seconds since epoch or 0 if there is none, and <data> is
       the tab-separated overview data.  Each of these fields must be
       separated by a single space.

HISTORY
       Written by Rob Robertson <rob@violet.berkeley.edu> and Rich $alz
       <rsalz@uunet.uu.net> for InterNetNews.  Man page rewritten in POD by
       Russ Allbery <eagle@eyrie.org>.

       $Id: overchan.pod 9767 2014-12-07 21:13:43Z iulius $

SEE ALSO
       inn.conf(5), innd(8), newsfeeds(5)

INN 2.6.0                         2015-09-12                       OVERCHAN(8)