[Xapian-discuss] Flint Database 'Can't acquire write lock'?

[Josef Novak]

Hi,

  I tried to do some checking up on my filesystem:
stat -f ./
  File: "./"
    ID: 0        Namelen: 255     Type: nfs
Blocks: Total: 127995985  Free: 7138492    Available: 7138492    Size: 8192
Inodes: Total: 4294967295 Free: 4294967295

I see an /usr/sbin/rpc.nfsd command and a 'lockfile' which is in my
path.  I cannot seem to locate a 'lockd' command.  So perhaps that is
the problem.

joe

On 4/20/07, Olly Betts <olly at survex.com> wrote:
> On Fri, Apr 20, 2007 at 06:37:47PM +0900, Josef Novak wrote:
> > I'm using xapian-core-0.9.9, built on a 64bit linux machine
> > (Linux 2.4.21-143-smp x86_64 unknown ), employing a bash shell.
>
> Flint relies on fcntl() for locking, so perhaps the filing system
> you have the database on doesn't support this.  What is the filing
> system?  If it's NFS, make sure you're running 'lockd'.
>
> Quartz uses completely different locking technique which works on
> NFS without lockd, but it leaves a stale lock behind if the process
> exits unexpectedly, which is annoying.
>
> If it's not obviously the FS, can you try a snapshot tarball of SVN
> HEAD?  There are have been some minor tweaks to the locking code:
>
> http://www.oligarchy.co.uk/xapian/trunk/
>
> Cheers,
>     Olly
>