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Re: estimate engine loseing it?
2007-09-03 11:22:16
For what I was concerned, I had troubles with Amanda's
balance in the following scenario: 1) I was using hardware compression
2) I was adding new DLE every days. After a few weeks adding DLE Amanda's
load balancing became awfull. Then I ran Amanda with software compression
once and everything went back to normal.
Cyr
owner-amanda-users AT amanda DOT org a écrit sur 03/09/2007
16:59:18 :
> On 2007-09-01 17:16, Gene Heskett wrote:
> > Greetings all;
> >
> > I can recall when amanda would stay within 98% of filling a 4GB
> tape, and do
> > it reliably for weeks at a time.
> >
> > But recently, the size of the backups has been varying more,
like
> by as much
> > as 30% from nightly run to nightly run. I added a day to
the
> schedule about
> > 2 weeks ago because it seemed to be continually leaving 3 or
400MBin dumps
> > for the next nightly run to flush.
> >
> > That should have brought the average fill ratio down to 70-75%.
But last
> > night it did level 0's on 3 of the 4 biggest dle's, filled the
> vtape and quit
> > with 709MB left in /dumps, which was from 28 of the 31 dle's
here.So I just
> > added yet another day to the dumpcycle and runspercycle.
> >
> > However amadmin balance's output is till a bit scary:
> >
> > [amanda@coyote ~]$ amadmin Daily balance
> >
> > due-date #fs orig MB out
MB balance
> > ----------------------------------------------
> > 9/01 Sat 14 7724
3948 -46.1%
> > 9/02 Sun 1 520
259 -96.5%
> > 9/03 Mon 4 13093
10921 +49.2%
> > 9/04 Tue 6 12916
9176 +25.4%
> > 9/05 Wed 10 24545
12292 +67.9%
> > ----------------------------------------------
> > TOTAL 35 58798
36596 7319
> > DISTINCT 31 56718
35560
> > (estimated 5 runs per dumpcycle)
> > (1 filesystem overdue, the most being overdue 1 day)
> >
> > What I don't grok is that the 9/01 data, which was last night,
totally
> > disagrees with what it actually did. Which was 11.87GB
& 98.5%, leaving
> > 709MB in /dumps. Should this first line of a balance report
not be a
> > truthfull answer since its after the actual fact?
>
> Note that the dates from the balance are not the historical dates
> (real numbers from the previous run), but future dates, i.e.,
> it shows the amount that Amanda expects to process on that day (before
> rescheduling to get a more equal balance).
>
> I guess backup from last night actually started at 08/31?
>
> About the reason of the imbalance, I can just guess. Need more
> information for that...
>
> --
> Paul Bijnens, xplanation Technology Services
Tel +32 16 397.511
> Technologielaan 21 bus 2, B-3001 Leuven, BELGIUM Fax
+32 16 397.512
> http://www.xplanation.com/ email:
Paul.Bijnens AT xplanation DOT com
> ***********************************************************************
> * I think I've got the hang of it now: exit, ^D, ^C, ^\, ^Z,
^Q, ^^, *
> * F6, quit, ZZ, :q, :q!, M-Z, ^X^C, logoff, logout, close, bye, /bye,
*
> * stop, end, F3, ~., ^]c, +++ ATH, disconnect, halt, abort,
hangup, *
> * PF4, F20, ^X^X, :D::D, KJOB, F14-f-e, F8-e, kill -1 $$, shutdown,
*
> * init 0, kill -9 1, Alt-F4, Ctrl-Alt-Del, AltGr-NumLock, Stop-A,
... *
> * ... "Are you sure?" ... YES
... Phew ... I'm out *
> ***********************************************************************
>
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