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Questions tagged [pacemaker]

Pacemaker is, according to its website, an Open Source, High Availability resource manager suitable for both small and large clusters.

Pacemaker is, according to its website, an open source, high availability resource manager suitable for both small and large clusters.

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fence_scsi is failing on linux guests on wmware

I have a cluster with two nodes. I have checked on both nodes if the disk is supporting; [root@d-clus1 ~]# /usr/bin/sg_persist -n -i -r -d /dev/sdb PR generation=0x1, Reservation follows: Key=0xec290000 scope: LU_SCOPE, type: Write…
Emre
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Why is it that KeepAlived does not offer a separate witness/quorum node to accommodate split brain scenarios?

To establish HA for one of our services, we used Keepalived. However, there is no suitable solution for split brain.  Even if we keep a dedicated network between the interfaces, failure is always possible and could lead to split brain. Is there…
Anand
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Floating IP does not work in pacemaker cluster

I have 2 VPS with Ubuntu OS 20 and I have 2 IPs in one server and 1 IP in the second server. Server 1-> 173.248.. & 173.248.. Server 2-> 173.248.. I want to set up one IP as a floating IP. How do I do that? Actually, I want to create a cluster in…
Stanley
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virtual IP in a High Availability cluster - RHEL 8 - pacemaker- corosync

I have setup a 3 node HA clsuter on RHEL 8 for SQL Server on AWS cloud with EC2 nstances, using pacemaker and corosync. I have assigned a virtual IP address to the cluster, and the IP is able to move from node to other in the event of a node…
user2002592
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CentOS 8 Unable to create Cluster name

I have run soo many commands for creating Cluster name using PCS command but i have face this error unabl to create cluster name using PCS actually i want to make HA using pacemaker Error: At least 1 and at most 8 addresses must be specified for a…
Noor
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How to force move cluster resource when maintenance mode on

I have pacemaker cluster that is in maintence mode because some maintenance is needed to be done manually on some of the resources. One of the resource is a virtual IP that is currently running on node1. How can I force to move this resource over to…
snailrider
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Convert puppet manifest config into hiera

I installed corosync-pacemaker cluster via puppet. Now I would to like keep my data into hiera file. How should I convert cs_primitive section into yaml file? cs_primitive { 'nfsshare_fs': primitive_class => 'ocf', primitive_type =>…
fortunate1357
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drbd & Corosync - My drbd works, it shows me that it is upToDate, but it is not

I have a high availability cluster with two nodes, with a resource for drbd, a virtual IP and the mariaDB files shared on the drbd partition. Everything seems to work OK, but drbd is not syncing the latest files I have created, even though drbd…
Maria Paricio Blasco
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Listener oracle in pacemaker cluster

I need some help. I have created a cluster with 2 nodes. I created all resources, but listener has errors and the pacemaker cluster status shows Oracle Listener has stopped. In the web interface I have the following error messages: Failed to start…
Tsunani
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Pacemaker not able to start slave node on postgres-11

I have 2 nodes (named node03 and node04) in a Master-slave, hot standby setup using pacemaker to manage the cluster. Before a switchover, node04 was the master and 03 was the standby. After the switchover, I have been trying to bring the node04 back…
Abhishek B
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Fail Over IP on Pacemaker is set to slave after restarting the master

Recently I tried to install and configure Corosync Pacemaker HA on my Ubuntu 20.04. So, everything goes well in my 2-node cluster. But after I restart one of nodes, the Fail Over IP did not switch properly and stays most of the time with the Slave…
Dr.Panda
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MariaDB service active but with errors, does not work with pacemaker

I changed the path from my mariaDB data files to /mnt/datosDRBD/mariaDB iba@iba-master2:/$ mysql -u root -p -e "SELECT @@datadir;" Enter password: +-------------------------+ | @@datadir | +-------------------------+ |…
Maria Paricio Blasco
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Pacemaker ipaddr2 resource is not failing correclty

I have a floating IP setup with a pacemaker ipaddr2 resource. test-IP4 (ocf::heartbeat:IPaddr2): Started node1 The floating IP is set to start on my ib0 interface. The ib0 port is connected to a network switch. When I disable the port…
dev4life
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Pacemaker + Corosync + DRBD + Apache. Fail-over OK, but fail if RJ45 is lost in master

I am testing my cluster, this is the status iba@iba-master1:/$ sudo pcs status [sudo] password for iba: Cluster name: cluster_iba Cluster Summary: * Stack: corosync * Current DC: iba-master1 (version 2.0.3-4b1f869f0f) - partition with quorum …
Maria Paricio Blasco
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Pacemaker configuration for SQL Server Always-on

Recently, I have installed and configured a Cent-OS 7 Linux cluster using pacemaker for making SQL Server 2019 high available. I have changed SQL Server default TCP Port 1433 to something else, and then realized that Pacemaker daemon couldn't bring…
Farshid
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