Berkeley Database Question

successor1221955 has asked for the wisdom of the Perl Monks concerning the following question:

I'm upgrading my application from a SDBM_File database to a BerkeleyDB database. To experiment with the Perl Module I wrote the following simple script:

#!/usr/bin/perl

use        BerkeleyDB;

my $env    = new BerkeleyDB::Env
               -Config =>
               {
            DB_DATA_DIR    => "/usr3/mxp/dev/database",
                   DB_LOG_DIR    => "/usr3/mxp/dev/log",
                   DB_TMP_DIR    => "/tmp"
               },
               -Verbose    => 1,
               -ErrFile    => *STDOUT or die "Database environment ini
+tialization failed : $!";
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The program returned:
Database environment initialization failed : No such file or directory at /usr3/mxp/dev/src/txt2bkdb line 5.
All the directories listed under the -Config keyword exist. Any idea fellow monks what in the world is happening here? Could it be a problem in the installation of the BerkeleyDB.pm? If tried removing all option specification and I still get the same error! In another script, I bypassed the environment command and went directly to BerkeleyDB::Hash which returned no errors!

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Re: Berkeley Database Question
by pboin (Deacon) on Mar 23, 2005 at 20:10 UTC

Looks like there may be some build problems with 0.26 right now. (I certainly can't build on Debian w/ 2.6.10). Check out the CPAN bug report.

Update: I got a good build after apt-get install libdb4.1 libdb4.1-dev.

Update 2: Looks like your 'or die' is getting passed into the ErrFile. That's not part of the filename! Try moving it out of the new() alltogether.

This seems to return OK:

#!/usr/bin/perl

use BerkeleyDB;
use strict;

my $env = new BerkeleyDB::Env
        -Config =>
                {DB_DATA_DIR => "/tmp",
                 DB_LOG_DIR => "/tmp",
                 DB_TMP_DIR => "/tmp"},
        -Verbose    => 1,
        -Flags => DB_CREATE
        -ErrFile    => *STDOUT
        ;


if (not defined($env)) {
       die "Database environment initialization failed: $!";
}
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Re: Berkeley Database Question
by PodMaster (Abbot) on Mar 23, 2005 at 23:01 UTC

$!

or die "Cannot open file $filename: $! $BerkeleyDB::Error\n" ;

update: Try adding some flags

MJD says "you can't just make shit up and expect the computer to know what you mean, retardo!"
I run a Win32 PPM repository for perl 5.6.x and 5.8.x -- I take requests (README).
** The third rule of perl club is a statement of fact: pod is sexy.

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