Re: a back up question

From: John R Pierce <pierce(at)hogranch(dot)com>
To: pgsql-general(at)lists(dot)postgresql(dot)org
Subject: Re: a back up question
Date: 2017-12-05 22:55:41
Message-ID: 3ffd93e7-32e9-928e-18be-f4039e77d8c3@hogranch.com
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On 12/5/2017 2:09 PM, Martin Mueller wrote:
> Time is not really a problem for me, if we talk about hours rather
> than days.  On a roughly comparable machine I’ve made backups of
> databases less than 10 GB, and it was a matter of minutes.  But I know
> that there are scale problems. Sometimes programs just hang if the
> data are beyond some size.  Is that likely in Postgres if you go from
> ~ 10 GB to ~100 GB?  There isn’t any interdependence among my tables
> beyond  queries I construct on the fly, because I use the database in
> a single user environment

another factor is restore time.    restores have to create indexes.  
creating indexes on multi-million-row tables can take awhile.  (hint, be
sure to set maintenance_work_mem to 1GB before doing this!)

--
john r pierce, recycling bits in santa cruz

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