Am 11.10.2011 14:04, schrieb Jarrod Holder:
> Bacula version 5.0.3
>
> In BAT, when trying to restore a directory (roughly 31,000 files in 560 sub
> folders) The "Filling Database Table" takes an extremely long time to
> complete (about an hour or so).
>
> I've been looking around for a way to speed this up. Found a post on here
> that referred to an article that basically said PostgreSQL was the way to go
> as far as speed
> (http://wiki.bacula.org/doku.php?id=faq#restore_takes_a_long_time_to_retrieve_sql_results_from_mysql_catalog).
> So I converted from MySQL to PostgreSQL using the conversion procedure in
> the Bacula documentation. We are now on PostgreSQL, but the speed seems just
> as slow (if not slower). Is there anything else that can be done to speed
> this process up?
>
> I've also tried the running the DB under MySQL with MyISAM and InnoDB tables.
> Both had the same slow performance here. With MySQL, I also tried using the
> my-large.cnf and my-huge.cnf files. Neither helped.
>
> Server load is very low during this process (0.06). BAT process is at about
> 3% cpu and 1.6% memory. Postgres service is about 1%cpu, 0.6% memory. Drive
> array is pretty quiet also.
>
> Any help would be greatly appreciated. If any extra info is needed, I will
> gladly provide it.
Hi,
what OS are you running on? Did you built Bacula from the tarball? I had
a similar problem on Solaris 10, with the stock Postgres 8.3. Bacula's
'configure' didn't detect that Postgres was thread safe, so it omitted
"--enable-batch-insert".
Without batch-insert, a full backup of my biggest fileset took roughly
24 hours. The backup of the data itself was (and still is) only 4 to 5
hours, the rest was despooling attributes into the database (I only
noticed this when I enabled attribute spooling).
With batch-insert (had to hack around in the 'configure' script a
little), the time for attribute despooling shrunk down down to maybe 20
_minutes_. It helps *a lot*.
Regards,
Christian Manal
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