Chris,
Amanda should continue to do the backup to holding disk while it wait
for a new tape, this is constructive work.
You could remove the interactivity setting if you don't what its behaviour.
What can be done is to add a timeout to the intertivity plugin to abort
if there is no tape available in that time.
Jean-Louis
On 09/07/15 01:43 PM, Chris Hoogendyk wrote:
I have an Ubuntu 14.04 LTS server with Amanda 3.3.6 using an NEO200
LTO6 connected by SAS.
I ran aptitude updates yesterday evening and rebooted.
This morning, I had no email report from Amanda, and the mail admin
said that the backup server and been sending email every 10 seconds to
unknown users admin1 and admin2.
After killing 5600 defunct processes from amanda trying to send email
every 10 seconds overnight, I began tracking down the causes.
First off, for some reason the reboot decided to reconfigure the
/dev/sg devices, and the tape library changed from /dev/sg10 to
/dev/sg8. So, I changed the specification in amanda.conf to
/dev/tape/by-id/scsi-1IBM_3573-TL_00L2U78AN152_LL0 (which currently
links to /dev/sg8). I had done that on another backup server, because
we were changing and adding hardware. I hadn't thought of this one,
because it was stable and no changes were planned. OK. Done with that.
Then, in looking for reference to admin1, I came upon the
interactivity. Why would anyone ever choose to set the default
resend-delay for email to 10 seconds? That's nuts. I changed it to 0,
which means send only one email. With that out of the way, I changed
the admin1 to amanda, which has an alias including our admin group.
Then I changed the check-file-delay to 1800, or 30 minutes, which
makes some kind of sense for an overnight run when admins aren't
checking things all that often.
So, that pretty well wraps it up, except for one kind of important
thing. I would prefer for amanda to proceed with backups and keep them
on the holding disk. If a device and/or a tape becomes available, then
proceed to put things on tape. But, do something constructive rather
than just hanging and waiting. In our case it is more likely to be
morning before anyone responds anyway. I'd rather have fallback
incrementals than nothing at all. In versions of amanda before the
interactivity plugin, that is what happened.
Is this something that can be configured around?
Or does it require tweaking code by someone who knows the code and the
tradeoffs?
