Subj : Squish dupe detection.
To   : Marc Lewis
From : andrew clarke
Date : Mon Nov 18 2002 05:38 pm

Sun 2002-11-17 22:44, Marc Lewis (1:396/45) wrote to All:

 > I have an ongoing problem with Squish and its somewhat broken dupe 
 > detection (false dupes).  I have in my configs 'DupeCheck MSGID' and 
 > 'Dupes 900' yet it still has problems, particularly with messages 
 > coming from mailing lists gated into echo format.  Sometimes a whole 
 > group of messages arrives at once and all end up with the same MSGID.  

Then the gateway software doesn't conform to FTS-9.  (Unless they really are 
dupes.)

 > Needless to say, Squish traps all but the first one.  It doesn't seem 
 > to make _any_ difference enabling the 'DupeLongHeader' with 'DupeCheck 
 > Header MSGID' - it seems to ignore the header info.  

The docs say that if you specify "DupeCheck Header MSGID" then "If EITHER the 
MSGID or the header is duplicated, Squish will declare the message to be a 
dupe."

 > Do you think disabling the MSGID check would help any?

Probably.  ;-)

 > Or has anyone done any updating on Squish to improve this
 > performance; or perhaps some sort of workaround like an external dupe
 > detector?

The Squish code isn't an easy thing to work on unfortunately.  I haven't been 
able to get the Win32 version to compile properly yet.  As for an external dupe 
detector, I don't know of such a beast, and I'm not sure it'd integrate too 
well into your set up even if it existed.

 > In fact, can dupe detection be completely disabled in Squish?

Comment-out the "DupeCheck" line entirely?  Unfortunately the Squish docs don't 
say what the default is.

If that fails you may be able to do something sneaky like create a zero byte 
*.sqb file mark it read-only, eg.

copy nul tub.sqb
attrib +r tub.sqb

But personally I'd look into fixing the gateway software.

Regards
Andrew

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