[ClusterLabs] 答复: 答复: 答复: 答复: How to configure to make each slave resource has one VIP

[范国腾]

Sorry, Rorthais, I have thought that the link and the attachment was the same document yesterday.
I just read the attachment and that is exactly what I ask originally.

I have two questions on the following two command:
# pcs constraint colocation add pgsql-ip-stby1 with slave pgsql-ha 10
Q: Does the score 10 means that " move to the master if there is no standby alive "?

# pcs constraint order start pgsql-ha then start pgsql-ip-stby1 kind=Mandatory
Q: I did not set the order and I did not find the issue until now. So I add this constraint? What will happen if I miss it?

Here is what I did now:
pcs resource create pgsql-slave-ip1 ocf:heartbeat:IPaddr2 ip=192.168.199.186 nic=enp3s0f0 cidr_netmask=24 op monitor interval=10s;
pcs resource create pgsql-slave-ip2 ocf:heartbeat:IPaddr2 ip=192.168.199.187 nic=enp3s0f0 cidr_netmask=24 op monitor interval=10s;
pcs constraint colocation add pgsql-slave-ip1 with pgsql-ha
pcs constraint colocation add pgsql-slave-ip2 with pgsql-ha
pcs constraint colocation set pgsql-slave-ip1 pgsql-slave-ip2 pgsql-master-ip setoptions score=-1000

-----邮件原件-----
发件人: Jehan-Guillaume de Rorthais [mailto:jgdr at dalibo.com] 
发送时间: 2018年3月7日 16:29
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] 答复: 答复: 答复: How to configure to make each slave resource has one VIP

On Wed, 7 Mar 2018 01:27:16 +0000
范国腾 <fanguoteng at highgo.com> wrote:

> Thank you, Rorthais,
> 
> I read the link and it is very helpful.

Did you read the draft I attached to the email? It was the main purpose of my
answer: helping you with IP on slaves. It seems to me your mail is reporting different issues than the original subject.

> There are some issues that I have met when I installed the cluster.

I suppose this is another subject and we should open a new thread with the appropriate subject.

> 1. “pcs cluster stop” could not stop the cluster in some times.

You would have to give some more details about the context where "pcs cluster stop" timed out.

> 2. when I upgrade the PAF, I could just replace the pgsqlms file. When 
> I upgrade the postgres, I just replace the /usr/local/pgsql/.

I believe both actions are documented with best practices in this links I gave you.

> 3.  If the cluster does not stop normally, the pgcontroldata status is 
> not "SHUTDOWN",then the PAF would not start the postgresql any more, 
> so I normally change the pgsqlms as below after installing the PAF.
> [...]

This should be discussed to understand the exact context before considering your patch.

At a first glance, your patch seems quite dangerous as it bypass the sanity checks.

Please, could you start a new thread with proper subject and add extensive informations about this issue? You could open a new issue on PAF repository as
well: https://github.com/ClusterLabs/PAF/issues

Regards,