Re: Backup

On Wed, Oct 16, 2024 at 4:00 PM Achilleas Mantzios <
a(dot)mantzios(at)cloud(dot)gatewaynet(dot)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(at)gmail(dot)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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