On 01/15/11 01:43, Silver Salonen wrote:
> On Friday 14 January 2011 23:30:15 Phil Stracchino wrote:
>> Stan:
>>
>> Without commenting further on the reasonableness of your data owner's
>> ideas about how to do this, the real-world chances of the Bacula
>> director encountering an error increase with every successive reload
>> without a restart.  The chance of a single Director instance surviving
>> even a hundred successive reloads without a problem is very small.  The
>> chance of it surviving 12,000 is essentially zero.
> 
> And why is that? Just because of the probability to make errors in 
> configuration?

No.  I don't know enough about the internals of the Director to know why
it is unsafe, but experience has shown that it is.  Sooner or later, a
reload ... perhaps overwrites a buffer or pointer that's in use, perhaps
tries to replace a structure that is locked because it's in use, I don't
know exactly what happens; but the reload fails, and from then on the
Director doesn't work properly until it's restarted.

My experience is that you can get away with a small number of reloads in
a single session, if you're tweaking your configuration or adding a
client, but if you've reloaded the configuration three or four times,
you really need to restart the Director at the next good opportunity.


-- 
  Phil Stracchino, CDK#2     DoD#299792458     ICBM: 43.5607, -71.355
  alaric AT caerllewys DOT net   alaric AT metrocast DOT net   phil AT 
co.ordinate DOT org
         Renaissance Man, Unix ronin, Perl hacker, Free Stater
                 It's not the years, it's the mileage.

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