Hemant Shah wrote:
> This is a database question, but I figured some of the bacula users may have 
 > come across this problem so I am posting it here.
> 
> Every monday I run following commands to check and garbage collect bacula 
> database:
> 
> dbcheck command
> vacuumdb -q -d bacula -z -f

There is absolutely no reason to "vacumm full" unless your data-size 
actually are shrinking over time. (longer periods). A normal vacuum will 
make it available for the next run.. you most likely are running 
autovacuum anyway.

> reindexdb

Might make sense, but weekly?..  There is AFAIK a small amount of 
index-bloat collecting up over time in PG. But in general just "yearly" 
or "monthly" should really be sufficient.

> Usually I purge one or two backup volumes and the above commands run in less 
> than 20 minutes. 
> 
> Before my monthly Full backup I delete large amount of data from the database 
> as I 
 > delete one month worth of Full and Incremental backups. When I run 
the above
 > commands after the Full backup, the vacummdb command take 12 hours
 > to run. Is there a faster/better way of doing it?

No not really VACUUM FULL i telling PG to reorder the data on-disk and 
free up space for the os, that is a "hard task". But it is also not 
needed, since you are going to used it within the next week/month 
anyway.. so ordinary VACUUM is sufficient.

> My database is about 9GB.
> 
> If I backup database using pgdump and then restore it, will it do the same
 > thing as vacuumdb and reindexdb commands?

Basically yes.

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