Xapian discuss - Oct 2007 - "Failed to update flint version file" while reading from index

Hello,

after upgrading xapian from 1.0.2 to 1.0.3 i get exceptions errors  
while searching, such as:

Exception: Failed to update flint version file: /var/lib/wtf/dev/db/ 
profile/iamflint

and recently

Exception: Flint version file /var/lib/wtf/dev/db/profile/iamflint  
should be ((sizeof("IAmFlint""")-1) + 4) bytes

both of these exceptions appear in the same line of my code where i  
reopen the Database before searching:

$db->reopen();

I run a single-writer-multiple-readers setup, and the exceptions only  
appear in the reader-processes. Could there be some kind of  
competition between these processes writing the iamflint file?

Do you have any ideas?

Additionaly I discovered that the "delve" tool in the xapian 1.0.3  
Distribution newly needs write-access to the index. Otherwise it dies  
with:

Error opening database `/var/lib/wtf/dev/db/profile':  
DatabaseOpeningError: Failed to create flint version file: /var/lib/ 
wtf/dev/db/profile/iamflint.tmp (Permission denied)

Perhaps this might also be in any way concerned with the problem?

Regards,
mrks

On Thu, Oct 11, 2007 at 05:21:44PM +0200, Markus W?rle wrote:
> Additionaly I discovered that the "delve" tool in the xapian
1.0.3
> Distribution newly needs write-access to the index. Otherwise it dies  
> with:
> 
> Error opening database `/var/lib/wtf/dev/db/profile':  
> DatabaseOpeningError: Failed to create flint version file: /var/lib/ 
> wtf/dev/db/profile/iamflint.tmp (Permission denied)
> 
> Perhaps this might also be in any way concerned with the problem?
Olly (I think) has recently committed changes that make it lazier at
upgrading flint databases. This will certainly fix your second
problem, and may help with the first.

J

-- 
/--------------------------------------------------------------------------\
  James Aylett                                                  xapian.org
  james@tartarus.org                               uncertaintydivision.org

On Thu, Oct 11, 2007 at 04:38:06PM +0100, James Aylett
wrote:
> Olly (I think) has recently committed changes that make it lazier at
> upgrading flint databases. This will certainly fix your second
> problem, and may help with the first.
It should - this is the patch:

http://oligarchy.co.uk/flint-1.0.3-readonly-db.patch

Cheers,
    Olly

Am 11.10.2007 um 17:44 schrieb Olly Betts:
> On Thu, Oct 11, 2007 at 04:38:06PM +0100, James Aylett wrote:
>> Olly (I think) has recently committed changes that make it lazier at
>> upgrading flint databases. This will certainly fix your second
>> problem, and may help with the first.
>
> It should - this is the patch:
>
> http://oligarchy.co.uk/flint-1.0.3-readonly-db.patch
Wow, that was fast! It seems that it solved both problems.

Thank you!
mrks