Re: Backup

On Wed, Oct 16, 2024 at 4:00 PM Achilleas Mantzios <a.mantzios@cloud.gatewaynet.com> wrote:

Στις 16/10/24 22:55, ο/η Ron Johnson έγραψε:

On Wed, Oct 16, 2024 at 3:37 PM Andy Hartman <hartman60home@gmail.com> wrote:

I am very new to Postgres and have always worked in the mssql world. I'm looking for suggestions on DB backups. I currently have a DB used to store Historical information that has images it's currently around 100gig. 

I'm looking to take a monthly backup as I archive a month of data at a time. I am looking for it to be compressed and have a machine that has multiple cpu's and ample memory.

Suggestions on things I can try ?  

I did a pg_dump using these parms
--format=t --blobs lobarch

it ran my device out of storage:

pg_dump: error: could not write to output file: No space left on device

I have 150gig free on my backup drive... can obviously add more

looking for the quickest and smallest backup file output...

Thanks again for help\suggestions 

Step 1: redesign your DB to NOT use large objects.  It's an old, slow and unmaintained data type.  The data type is what you should use.

You mean bytea I guess. As a side note, (not a fan of LOs), I had the impression that certain drivers such as the JDBC support streaming for LOs but not for bytea? It's been a while I haven't hit the docs tho.

Our database is stuffed with images in bytea fields.  The Java application uses JDBC and handles them just fine.

 

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