But, amanda did not continue. After the estimates, there was nothing. Zero backups. And, when I came
in in the morning, amanda was basically dead and gone, aside from the bazillion defunct amanda mail
processes. Is it possible that the mail issue created too many processes and exceeded some limit?
As far as a timeout is concerned, I couldn't find a timeout option in
http://wiki.zmanda.com/man/amanda-interactivity.7.html.
On 7/9/15 2:28 PM, Jean-Louis Martineau wrote:
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?
--
---------------
Chris Hoogendyk
-
O__ ---- Systems Administrator
c/ /'_ --- Biology & Geology Departments
(*) \(*) -- 317 Morrill Science Center
~~~~~~~~~~ - University of Massachusetts, Amherst
<[email protected]>
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Erdös 4
