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PostgreSQL 9 Administration Cookbook - Second Edition by Simon Riggs, Gianni Ciolli, Hannu Krosing, Gabriele Bartolini

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Hot logical backup of all databases

If you have more than one database in your PostgreSQL server, you may want to back up all the databases together.

How to do it…

My recommendation is that you do exactly what you did for one database to each database in your cluster.

You can run those individual dumps in parallel if you want to speed things up.

Once this is complete, dump the global information also using the following:

pg_dumpall -g

How it works…

To back up all databases, you may be told you need to use the pg_dumpall utility. I have four reasons why you shouldn't do that, which are as follows:

  • If you use pg_dumpall, then the only output produced is in a script file. Script files can't use the parallel restore feature of pg_restore, so by taking your ...

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