Re: migration from 9.4 to 9.6
El 6/12/19 a las 23:07, Alan Hodgson escribió: On Fri, 2019-12-06 at 21:38 +, Julie Nishimura wrote: I'd like to copy one single database from 9.4 cluster to a new 9.6 cluster (migration with the upgrade), to the different host Put 9.4 on the new server. Replicate the db to it. When you're ready to switch, shut down the master, promote the new db, and then shut it down and pg_upgrade -k it to 9.6. That does require the binaries from both versions to be on the new server for a while, but it'll give you the least downtime and it's a very simple replication setup. This is the plan we're going to follow to migrate from 9.2 to 9.6, as this is the only way to achieve almost zero downtime. The cons are, despite what Alan has mentioned, that you need double space because you have to create a slave replica.
Re: migration from 9.4 to 9.6
On Fri, 2019-12-06 at 21:38 +, Julie Nishimura wrote: > I'd like to copy one single database from 9.4 cluster to a new 9.6 > cluster (migration with the upgrade), to the different host > > > > > > > > > > Put 9.4 on the new server. Replicate the db to it. When you're ready to switch, shut down the master, promote the new db, and then shut it down and pg_upgrade -k it to 9.6. That does require the binaries from both versions to be on the new server for a while, but it'll give you the least downtime and it's a very simple replication setup.
Re: migration from 9.4 to 9.6
On 12/6/19 1:38 PM, Julie Nishimura wrote: I'd like to copy one single database from 9.4 cluster to a new 9.6 cluster (migration with the upgrade), to the different host Choices: 1) Dump/restore. 2) Afore mentioned Slony. 3) The pglogical extension(https://www.2ndquadrant.com/en/resources/pglogical/pglogical-docs/). The forerunner to the built in logical replication in 10+. *From:* Adrian Klaver *Sent:* Friday, December 6, 2019 1:32 PM *To:* Julie Nishimura ; pgsql-general@lists.postgresql.org ; pgsql-general *Subject:* Re: migration from 9.4 to 9.6 On 12/6/19 1:19 PM, Julie Nishimura wrote: Hello there, what would be my best way to migrate 2 tb single database from cluster 9.4 to another machine on 9.6? Not clear if you want to add database to an existing 9.6 cluster or create a new 9.6 cluster containing the 9.4 database? Thank you! -- Adrian Klaver adrian.kla...@aklaver.com -- Adrian Klaver adrian.kla...@aklaver.com
Re: migration from 9.4 to 9.6
I'd like to copy one single database from 9.4 cluster to a new 9.6 cluster (migration with the upgrade), to the different host From: Adrian Klaver Sent: Friday, December 6, 2019 1:32 PM To: Julie Nishimura ; pgsql-general@lists.postgresql.org ; pgsql-general Subject: Re: migration from 9.4 to 9.6 On 12/6/19 1:19 PM, Julie Nishimura wrote: > Hello there, what would be my best way to migrate 2 tb single database > from cluster 9.4 to another machine on 9.6? Not clear if you want to add database to an existing 9.6 cluster or create a new 9.6 cluster containing the 9.4 database? > > Thank you! -- Adrian Klaver adrian.kla...@aklaver.com
Re: migration from 9.4 to 9.6
On 12/6/19 1:19 PM, Julie Nishimura wrote: Hello there, what would be my best way to migrate 2 tb single database from cluster 9.4 to another machine on 9.6? Not clear if you want to add database to an existing 9.6 cluster or create a new 9.6 cluster containing the 9.4 database? Thank you! -- Adrian Klaver adrian.kla...@aklaver.com
migration from 9.4 to 9.6
Hello there, what would be my best way to migrate 2 tb single database from cluster 9.4 to another machine on 9.6? Thank you!
