[pgpool-general: 8209] Re: Upgrading pgpool in a cluster

[Bo Peng]

Hello,

> I'm currently running pgpool 4.1.4. I'd like to upgrade to the latest stable release, 4.3.2. I have a cluster with 3 pgpool nodes running in it. Is it possible to upgrade a single host in the cluster and have them still talk to each other? Or will I need to take down the cluster and upgrade all nodes at once?

Because the watchdog mechanism has changed significantly in 4.2,
Pgpool-II 4.1 and 4.3 can't communicate with each other.
You need to shutdown the cluster and upgrade all nodes at once.
 
> Jon Schewe
> 
> Principal Software Systems Technologist
> 
> C: +1 612.263.2718
> 
> O: +1 952.545.5720
> 
> jon.schewe at raytheon.com
> 
> Raytheon BBN
> 
> Raytheon Intelligence & Space
> 
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> 
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> 


-- 
Bo Peng <pengbo at sraoss.co.jp>
SRA OSS, Inc. Japan
https://www.sraoss.co.jp/