If uptime is a priority, then unless they're small, you should think about separating them onto separate servers. And implementing replication for DR.
On 1/4/19 9:30 AM, Erika Knihti-Van Driessche wrote:
Hi,
Thanks all for your replies and help! I already thought that it’ll be possible to just install binaries in different locations. My current installation I have all done using one binary location and initdb.. not a very good solution on hindsight.. Oh, and I’m on RHEL 7. I used the installation packages from EDB for Postgres. Previously I did do a minor upgrade - shutdown all clusters and upgrade, then startup all.. but now they start doing difficult with downtime for all applications at the same time, so with next upgrade, I’ll separate all binaries.
Cheers,
Erika
Hi Erika,
You can create the different version services and use these services for PostgreSQL start/stop.
ex.
service postgresql-10 start
service postgresql-9.6 start
Hi,
I have 10+ postgresql clusters (v 9.6) running on one machine - each having their own data directory and port. They all share same binaries though, and this is now giving me some headache.. I cannot shutdown all clusters at the same time, so upgrading them is quite impossible.
I know that running several versions of postgres is possible on one machine - I suppose this would also work out with same version running on different locations, like /db1/PostgreSQL/10, /db2/PostgreSQL/10.. etc..? Has anyone any experience with this kind of problem?
All help and ideas appreciated! :-)
Thanks,
Erika
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