Thank you very much, Rorthais,
I see now. I have two more questions. 1. If I change the "cluster-recheck-interval" parameter from the default 15 minutes to 10 seconds, is there any bad impact? Could this be a workaround? 2. This issue happens only in the following configuration. [cid:image003.jpg@01D3D700.2F3E24D0] But it does not happen in the following configuration. Why is the behaviors different? [cid:image004.jpg@01D3D700.2F3E24D0] -----邮件原件----- 发件人: Jehan-Guillaume de Rorthais [mailto:j...@dalibo.com] 发送时间: 2018年4月17日 17:47 收件人: 范国腾 <fanguot...@highgo.com> 抄送: Cluster Labs - All topics related to open-source clustering welcomed <users@clusterlabs.org> 主题: Re: [ClusterLabs] No slave is promoted to be master On Tue, 17 Apr 2018 04:16:38 +0000 范国腾 <fanguot...@highgo.com<mailto:fanguot...@highgo.com>> wrote: > I check the status again. It is not not promoted but it promoted about > 15 minutes after the cluster starts. > > I try in three labs and the results are same: The promotion happens 15 > minutes after the cluster starts. > > Why is there about 15 minutes delay every time? This was a bug in Pacemaker up to 1.1.17. I did a report about this last August and Ken Gaillot fixed it few days later in 1.1.18. See: https://lists.clusterlabs.org/pipermail/developers/2017-August/001110.html https://lists.clusterlabs.org/pipermail/developers/2017-September/001113.html I wonder if disabling the pgsql resource before shutting down the cluster might be a simpler and safer workaround. Eg.: pcs resource disable pgsql-ha --wait pcs cluster stop --all and pcs cluster start --all pcs resource enable pgsql-ha Another fix would be to force a master score on one node **if needed** using: crm_master -N <node name> -r <resource_name> -l forever -v 1
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