Tom Lane wrote:
Andrew Dunstan <[EMAIL PROTECTED]> writes:
You're right - my query was not sufficiently specific. There have in fact been 4 failures:
pgbuildfarm=# select sysname, snapshot, stage, branch from build_status where log ~ 'tablespace "testspace" is not empty.*tablespace "testspace" is not empty' and not log ~ 'No space left';
sysname | snapshot | stage | branch
--------+---------------------+--------------+--------
hare | 2004-12-09 05:15:05 | Check | HEAD
otter | 2004-12-11 15:50:09 | Check | HEAD
otter | 2004-12-15 15:50:10 | Check | HEAD
gibbon | 2004-12-28 23:55:05 | InstallCheck | HEAD
Why does the last show as an "install" failure?
We run the standard regression suite twice - the failure on Gibbon occurred on the second of these. Clearly this is very transient.
Anyway, given the small number of machines involved, I'm once again wondering what filesystem they are using. They wouldn't be running the check over NFS, by any chance, for instance?
The theory that is in my mind is that the bgwriter could have written out a page for the table in the test tablespace, and thereby be holding an open file pointer for it. On standard Unix filesystems this would not disrupt the backend's ability to unlink the table at the DROP stage, but I'm wondering about nonstandard filesystems ...
Jim Buttafuoco reported on December 16th that he had rebuilt the filesystem on his MIPS box - I assume this means that he isn't using NFS. In any case, we have not seen the problem since then. His Alpha box has not been reporting buildfarm results since before then.
The Cygwin box is running on NTFS - and we know we've encountered plenty of problems with unlinking on Windows.
I know it's not much to go on.
cheers
andrew
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