Re: how to fail over slave to master

Version 12 and can you show me step by step what needs to do?  I found a document in version 10 to promote salve to master with pg_ctl and create recovery.conf.  Recovery.conf is not existed in version 12 but in version 1.
Do I need to run pg_ctl in slave server?  Create recovery.conf in master, but master is a failure right now.   
Bach-Nga

No one in this world is pure and perfect.  If you avoid people for their mistakes you will be alone. So judge less, love, and forgive more.To call him a dog hardly seems to do him justice though in as much as he had four legs, a tail, and barked, I admit he was, to all outward appearances. But to those who knew him well, he was a perfect gentleman (Hermione Gingold)
**Live simply **Love generously **Care deeply **Speak kindly.*** Genuinely rich *** Faithful talent *** Sharing success

On Monday, December 28, 2020, 01:38:10 PM EST, Amine Tengilimoglu <aminetengilimoglu(at)gmail(dot)com> wrote:

You need to promote standby server, you can do that pg_ctl promote command. And also you need to use pg_rewind command for setup the old master as a standby server. So you can start with investigate pg_ctl promote and pg_rewind...
28 Ara 2020 Pzt 21:29 tarihinde Pepe TD Vo <pepevo(at)yahoo(dot)com> şunu yazdı:

Hello,
I have a problem with my master's Postgresql service.  I can't start up Postgresql, something corrupted and the Postgresql service is down.  The slave is still up and running, I wonder how to turn slave to primary and fixing the master server.  Once the master server is fixed, how can I fail it back?
Please advise.

Bach-Nga

No one in this world is pure and perfect.  If you avoid people for their mistakes you will be alone. So judge less, love, and forgive more.To call him a dog hardly seems to do him justice though in as much as he had four legs, a tail, and barked, I admit he was, to all outward appearances. But to those who knew him well, he was a perfect gentleman (Hermione Gingold)
**Live simply **Love generously **Care deeply **Speak kindly.*** Genuinely rich *** Faithful talent *** Sharing success