Oh. I just got back from "vacation", and haven't looked at this yet. What
you write sounds very plausible. However, I am wondering why this
problem (%d) shows up only now and not some time ago.
Kern
On 1/2/19 3:04 PM, Martin Simmons wrote:
AFAICS, there is no evidence of uint32_t overflow here (the problem was just
caused by %d treating the 32 bits as signed rather than unsigned).
The catalog seems to store the low 32 bits of the disk volume size in EndBlock
and the high 32 bits in EndFile.
__Martin
On Tue, 1 Jan 2019 02:13:09 +0100, Kern Sibbald said:
Well the EndBlock should be the last Bacula block number that is
written. The default
block size for disk is 32K if I remember right so EndBlock *should*
overflow when
the byte size of the Volume is greater than 2 billion times 32K.
I believe the EndBlock is never used in the Media record, except perhaps
for Cloud volumes, so most likely it has been incorrectly set.
Best regards,
Kern
On 12/31/18 9:56 PM, Phil Stracchino wrote:
On 12/31/18 2:41 PM, Kern Sibbald wrote:
Thanks to Martin for the fix and to Phil for confirming it. I have
patched Bacula and pushed it to the repo.
For the moment, EndBlock is 32 bits, maybe someone can explain why it
should overflow -- that seems like
a *very* big volume, but maybe it is time to make it 64 bits, but that
requires a DB change.
The next release, probably in the Spring, will require a DB upgrade so
if a 64 bit EndBlock
is really needed it will be a good time to do it.
I was pretty surprised that it was overflowing too. The actual disk
volume starts overflowing EndBlock at about 32GB file size. The same
size file has no issues in 9.2.x.
Could some change in 9.4.x have unexpectedly affected what Bacula thinks
the block size of a disk volume is?
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