RE: [greenstone-devel] configuration problem

From Emanuel Dejanu
DateMon, 9 Jan 2006 11:04:17 +0200
Subject RE: [greenstone-devel] configuration problem
In-Reply-To (43C1A30F-1020602-cs-waikato-ac-nz)
Also I think that the command for build the gdbm database is

txt2db apples.bdb < apples.ldb.txt

Or if you have "cat"

cat apples.ldb.txt | txt2db apples.bdb


Regards,

Emanuel

-----Original Message-----
From: greenstone-devel-bounces&#64;list.scms.waikato.ac.nz
[mailto:greenstone-devel-bounces@list.scms.waikato.ac.nz] On Behalf Of
Katherine Don
Sent: Monday, January 09, 2006 1:41 AM
To: greenstone-devel@list.scms.waikato.ac.nz
Cc: Rich Robinson
Subject: Re: [greenstone-devel] configuration problem

Hi

Just to add to what Richard wrote, for MGPP collections you only need to
rebuild the gdbm database. But for MG collections, a bug only recently
discovered (and fixed after the release of 2.62) means that you need to
rebuild the whole collection when transferring to a different endian
machine.

Regards,
Katherine

Richard Managh wrote:
> Hi Rich,
>
> Just to add to what Stephen wrote,
>
> When you upload the collection to your mac, the only part of the
> collection that is affected by the endian problem is the gdbm database.
> The mg indexes in the collection and the associated files will be fine.
> A quick way of dealing with the gdbm database is to use two utilities
> provided with greenstone, db2txt and txt2db
>
> db2txt - converts the gdbm database for a collection from binary form
> to text form txt2db - converts the gdbm database for a collection from
> text form back to binary form
>
> You can find the gdbm database for a collection in that collections
> index/text directory.
> It will be named as a *.ldb file, or a *.bdb file, the l stands for
> little endian, the b stands for big endian. So on a windows machine,
> if you had a built collection with the name "apples", you would find a
> apples.ldb file here: gsdlcollectapplesindex extapples.ldb
>
> So, to successfully transfer your gdbm database from a windows machine
> to a mac, you would need to use the db2txt utility on the windows
> machine, to convert the *.ldb file to a text form, something like this
>
> db2txt apples.ldb > apples.ldb.txt
>
> Once you have uploaded that ldb file to the mac, you can use the mac's
> version of txt2db to convert your text version back to a *.bdb file in
> this case, something like
>
> txt2db apples.ldb.txt > apples.bdb
>
> Put this file in the index/text directory, and your collection should
> work properly on the mac.
>
> Hope this helps,
>
>
> Richard

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