Jean-Arthur Silve <jeanarthur(at)eurovox(dot)fr> writes:
> Now It works fine, but I can't do VACUMM, the error message is something
> like "Can't get lock. Is another Vacuum running ?"
> What can I do to reactivate the vacuum ?
There's a file named something pretty obvious (pg_vlock, IIRC) in the
$PGDATA/base/yourdb/ directory. Remove it.
Also, consider updating to a more recent version of Postgres ;-)
regards, tom lane