Re: [ClusterLabs] Booth ticket multi-site and quorum /Pacemaker

2022-02-25 Thread Strahil Nikolov via Users
man votequorum auto_tie_breaker: 1 allows you to have quorum with 50%, yet if for example Aside (node with lowest id) dies, B side is 50% but won't be able to bring back the resources as the node with lowest id is in A side.If you want to avoid that, you can bring a qdevice on a VM in third

Re: [ClusterLabs] Booth ticket multi-site and quorum /Pacemaker

2022-02-25 Thread Viet Nguyen
Hi, Thank you so much for the answer. It seems to me that the one option I am having is one big cluster with 4 nodes. However, i still can not understand how i could solve the issue when one site with 2 nodes is down, then the other site along does not have quorum so it does not work... Can you

Re: [ClusterLabs] Booth ticket multi-site and quorum /Pacemaker

2022-02-24 Thread Viet Nguyen
Hi, Thank you so much! Would you please advise more on this following case: The cluster I am trying to setup is Postgresql with replication streaming with PAF. So, it will decide one node as a master and 3 standby nodes. So, with this, from what I understand from Postgresql, having 2

Re: [ClusterLabs] Booth ticket multi-site and quorum /Pacemaker

2022-02-24 Thread Viet Nguyen
Hi, Thank you so so much for your help. May i ask a following up question: For the option of having one big cluster with 4 nodes without booth, then, if one site (having 2 nodes) is down, then the other site does not work as it does not have quorum, am I right? Even if we have a quorum voter in

Re: [ClusterLabs] Booth ticket multi-site and quorum /Pacemaker

2022-02-24 Thread Jan Friesse
Hi, On 24/02/2022 14:19, Viet Nguyen wrote: Hi, Thank you so much! Would you please advise more on this following case: The cluster I am trying to setup is Postgresql with replication streaming with PAF. So, it will decide one node as a master and 3 standby nodes. So, with this, from what I

Re: [ClusterLabs] Booth ticket multi-site and quorum /Pacemaker

2022-02-24 Thread Andrei Borzenkov
On Thu, Feb 24, 2022 at 1:17 PM Jan Friesse wrote: > > On 24/02/2022 10:28, Viet Nguyen wrote: > > Hi, > > > > Thank you so so much for your help. May i ask a following up question: > > > > For the option of having one big cluster with 4 nodes without booth, then, > > if one site (having 2 nodes)

Re: [ClusterLabs] Booth ticket multi-site and quorum /Pacemaker

2022-02-24 Thread Jan Friesse
On 24/02/2022 10:28, Viet Nguyen wrote: Hi, Thank you so so much for your help. May i ask a following up question: For the option of having one big cluster with 4 nodes without booth, then, if one site (having 2 nodes) is down, then the other site does not work as it does not have quorum, am I

Re: [ClusterLabs] Booth ticket multi-site and quorum /Pacemaker

2022-02-23 Thread Jan Friesse
Viet, On 22/02/2022 22:37, Viet Nguyen wrote: Hi, Could you please help me out with this question? I have 4 nodes cluster running in the same network but in 2 different sites (building A - 2 nodes and building B - 2 nodes). My objective is to setup HA for this cluster with pacemaker. The

[ClusterLabs] Booth ticket multi-site and quorum /Pacemaker

2022-02-23 Thread Viet Nguyen
Hi, Could you please help me out with this question? I have 4 nodes cluster running in the same network but in 2 different sites (building A - 2 nodes and building B - 2 nodes). My objective is to setup HA for this cluster with pacemaker. The expectation is if a site is down, the other site