Обсуждение: Failover question
I currently have 2 servers running PostgreSQL 9.0 under FreeBSD configured with streaming replication.
DB1 is the primary server, and DB2 is the replicated server, which is used for all of the read only queries.
I am having some hardware issues on DB1 which is affecting its performance, resulting in data getting queued up.
I would like to change roles on these servers, such that DB1 becomes the replicated server and DB2 the master server.
This is a production system, so I cannot take any chances of anything going wrong.
What is the correct procedure for accomplishing this?
If needed, although not preferred, I can take the system offline for a maintenance window.
Thank you in advance,
Benjamin
On Mon, 22 Apr 2013 12:06:52 -0600, Benjamin Krajmalnik wrote: > I currently have 2 servers running PostgreSQL 9.0 under FreeBSD > configured with streaming replication. > > DB1 is the primary server, and DB2 is the replicated server, which is > used for all of the read only queries. > > I am having some hardware issues on DB1 which is affecting its > performance, resulting in data getting queued up. > > I would like to change roles on these servers, such that DB1 becomes the > replicated server and DB2 the master server. > > This is a production system, so I cannot take any chances of anything > going wrong. > > What is the correct procedure for accomplishing this? The correct procedure is to have a test server and test standby so that you can test.