| From: | Thomas Kellerer <spam_eater(at)gmx(dot)net> |
|---|---|
| To: | pgsql-general(at)lists(dot)postgresql(dot)org |
| Subject: | Re: upgrade and migrate |
| Date: | 2019-12-04 07:38:01 |
| Message-ID: | d2860b55-d506-d707-39f1-ab9cbd6bd7cc@gmx.net |
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| Lists: | pgsql-general |
Michael Paquier schrieb am 04.12.2019 um 05:48:
> On Tue, Dec 03, 2019 at 10:32:22PM +0000, Julie Nishimura wrote:
>> Hello, what is the best way to migrate from PostgreSQL 8.3.11 on
>> x86_64-redhat-linux-gnu to PostgreSQL 9.6.16 on x86_64-pc-linux-gnu
>> server, with minimal downtime?
>> The caveat is the source has about 80 databases overall almost 30
>> TB. I could migrate the smallest ones (up to 1 tb) using pg_dump and
>> pg_restore, but the largest hot database is almost 17 tb, and I am
>> not sure how to approach this effort in a better and efficient way?
>
> pg_upgrade could be one way to go here. That's not the scale pg_dump
> would be very good at.
But pg_upgrade only supports 8.4+
At least according to the manual.
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