[ClusterLabs] 答复: How to setup a simple master/slave cluster in two nodes without stonith resource

[范国腾]

Rorthais，

Thank you very much for your help. I do according to your comments and the cluster status is ok now.

I want to ask two more questions:

1. This line code in PAF prevent the score to be set. Why does PAF request the prev_state must be shutdown? Could I just set the score if it is not set?

if ( $prev_state eq "shut down" and not _master_score_exists() )

2. The log shows " Transition aborted by operation pgsqld_monitor_0 'create' on node2-1: Event failed ". How could we see the score is not set according this log?

Thanks

-----邮件原件-----
发件人: Jehan-Guillaume de Rorthais [mailto:jgdr at dalibo.com] 
发送时间: 2018年4月3日 21:02
收件人: 范国腾 <fanguoteng at highgo.com>
抄送: Cluster Labs - All topics related to open-source clustering welcomed <users at clusterlabs.org>
主题: Re: [ClusterLabs] How to setup a simple master/slave cluster in two nodes without stonith resource

On Tue, 3 Apr 2018 14:41:56 +0200
Jehan-Guillaume de Rorthais <jgdr at dalibo.com> wrote:

> On Tue, 3 Apr 2018 02:07:50 +0000
> 范国腾 <fanguoteng at highgo.com> wrote:
> 
> > Hello,
> > 
> > I want to setup a cluster in two nodes. One is master and the other 
> > is slave. I don’t need the fencing device because my internal network is
> > stable.   
> 
> How much stable it is? This assumption is frequently wrong.
> 
> See: https://aphyr.com/posts/288-the-network-is-reliable

Plus, if you really don't want to setup node fencing, at least, setup watchdog:
https://clusterlabs.github.io/PAF/CentOS-7-admin-cookbook.html#setting-up-a-watchdog