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From: flee@cs.psu.edu (Felix Lee)
Newsgroups: comp.lang.perl
Subject: Re: Large, sparse dbm databases
Message-ID: <pl9Ga+oh@cs.psu.edu>
Date: 7 Feb 91 23:58:29 GMT
References: <1991Feb7.044015.10585@ux1.cso.uiuc.edu>
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>  dbm store returned -1, errno 28, key "class^\InfrastructureManager^\method"
>	at db.pl line 42, <> line 810.
>I get errno 28 to be No space left on device. This shouldn't have been

You're running into ndbm limitations.  Ndbm returns ENOSPC when your
key+data exceeds PBLKSIZ bytes (in <ndbm.h>).  This may be mentioned
in the "BUGS" section of your ndbm(3) man page.  (The SunOS man page
claims 4096 bytes, but <ndbm.h> says 1024.)

Ndbm also runs into problems when all the data that hashes to the same
32-bit integer overflows a PBLKSIZ block, but I don't think it returns
ENOSPC in this case.
--
Felix Lee	flee@cs.psu.edu