[Dirvish] mysteriously missing snapshots
jasonb at edseek.com
Mon Jul 26 14:32:58 UTC 2010
On 7/26/2010 5:40 AM, Dave Howorth wrote:
> Jason Boxman wrote:
>> Been using Dirvish since like 2003 and I've never seen this behavior before.
>> Apparently at random snapshots for different vaults simply don't exist. No
>> directory. No log. Nothing in default.hist to indicate it ever actually
>> happened. Other backups happen for that run, however.
> Just to check I understand your situation. You have one server, backing
> up several clients? Random snapshots for different clients go missing?
Yes. Missing in that as far as the expected daily snapshot direct
doesn't appear when I go looking for it. dirvish-runall won't remove
them, so it's either dirvish-expire or the missing directory was never
created. I set expire-default +60 and have no special expire rules set
> dirvish-cron is
>> running every night at the Debian default 10:04 p.m. (Verified in syslog.)
>> Most hosts are on the local LAN, so it shouldn't be a connectivity issue.
>> (Even then I'd have a dated directory with a log... not this time.)
>> Any thoughts on what to look for?
> I've never seen anything like that either. So I suspect it will be a
> doh! moment when you do find it.
> If my assumptions about your situation are correct, I'd be looking at
> whatever has been updated on your server recently :)
Yes, the original backup server failed. I moved over my configuration
files and the snapshots. Why it would be different now is a mystery.
> Have you tried running the missing snapshots manually to see what happens?
Not yet. I suspect they will succeed since every vault with a missing
snapshot ultimately has 90% of the other snapshot directories.
> You could also up the verbosity wherever possible and add extra print
> statements (pre- post- options, perhaps) and maybe run the various jobs
> in separate groups (i.e. use extra /etc/dirvish/*.conf files) so you get
> separate output.
Yeah, kind of operating in the dark here. Sigh.
The original server was running backups at 3 a.m. I might just switch
back the time first and go from there...
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