Pacemaker achieves maximum availability for cluster services by detecting and recovering from node and service-level failures. It achieves this by utilizing the messaging and membership capabilities provided by your preferred cluster infrastructure (currently either OpenAIS or Heartbeat).
Questions tagged [pacemaker]
297 questions
5
votes
1 answer
DRBD + corosync + pacemaker - Servers won't connect after failover
I got 2 servers configured with drbd, corosync with pacemaker. It is all working fine, primary server gets secondary if it fails, and secondary gets primary.
But if the 1st server comes up again after the failover, drbd won't connect back again and…
Jockel
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5
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Corosync unicast issue with different nets
I'm using a setup (on our staging-system) with 2 root-servers and 1 fail-over-ip.
As software we use corosync and pacemaker.
Corosync is configured for multicast communication via port 5405.
--> everything works fine.
Now I want to deploy this…
Rene Hellmann
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5
votes
2 answers
Corosync/Pacemaker/DRBD Resilience Tuning
I have a DRBD cluster and one node was switched off for a couple of days. The single node ran fine without a hiccup. When i switch it on I got into a situation where all resources got stopped and one DRBD volume was secondary and the others primary…
Waslap
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4
votes
3 answers
Apache Failed to Start in Pacemaker
I am using Pacemaker with Corosync to set up a basic Apache HA cluster with 3 nodes running CentOS. For some reasons, I cannot get the apache resource started in pcs.
Cluster IP: 192.168.200.40
# pcs resource show ClusterIP
Resource: ClusterIP…
cody
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4
votes
4 answers
ZFS-HA pool faulted with metadata corruption
I setup the ZFS-HA following the excellent description Github (see here). After extensive testing, I rolled the setup out to production using 5x12 disks in RAIDZ3 connected to two nodes using HBA Controllers. This ran quite smooth until last night…
Michael
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4
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2 answers
pacemaker corosync lsb resource script( Sybase database ASE server and backup server)
I'm trying to create a lsb resource with pcs on rhel7.2
The "sybase" script is about Sybase Database ASE Server and Backup Server Startup & Stop & Restart $ status script
Before
[root@pldbsv01 ~]# pcs status
Cluster name: PLDBSV_CLUSTER
…
Arthur Cheng
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4
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0 answers
Pacemaker ocf:heartbeat:IPaddr on different subnets
I'm trying to add a Pacemaker virtual IP address; with it, the gateway, and the two VMs it serves on different subnets. I've only done this before with all IPs on the same subnet, and I need some help.
I have two VMs on 200.xx.xxx.9 and…
jetboy
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4
votes
1 answer
Start at boot time Corosync 2.X + Pacemaker 1.1 cluster (Debian Wheezy)
I can't find a way to start cluster (corosync+pacemaker) at boot time in Debian
I have updated a 2 node cluster with the following configuration on both nodes:
Debian Wheezy 7.7
Corosync v2.3.4
Pacemaker v1.1.12
Libqb v0.17.1
Cluster-glue…
Danilo7
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4
votes
1 answer
Relation between Heartbeat and Corosync on openSUSE
I'm moving a Heartbeat + Pacemaker setup to openSUSE 12.1. It turns out that Heartbeat isn't supported on this platform anymore, and therefore it is not available from the official repos.
Switching to Corosync isn't really a problem, but I'm…
Szymon Jednac
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4
votes
1 answer
Add MySQL as a resource to pacemaker
I am trying to enable fail over strategy using pacemaker on a mysql Master-Master replication on two virtual machine running openSUSE 12 created by VritualBox.
I managed to complete the mysql dual-master replication, and it seems to work. Server A…
mrz
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4
votes
3 answers
Pacemaker corosync 2-node with a 3rd for quorum
I'm having trouble figuring out how to configure a 2-node setup with a third
simpler one for quorum.
It seems to think all the nodes have the capability to act as a full fallback node, when I only I want a quorum with STONITH working sanely for what…
Martti
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4
votes
1 answer
Monitoring Varnish with Heartbeat and Pacemaker
I have a pair of servers setup as high availability load balancers/reverse proxies. Each runs Ubuntu 12.04 x64 Server, Varnish, Heartbeat and Pacemaker, with Varnish load balancing traffic to back-end servers.
If either of the load balancers falls…
jetboy
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4
votes
3 answers
Do Pacemaker, Heartbeat, etc. make sense for EC2?
Does the Pacemaker ecosystem (Corosync etc.) make sense in the context of EC2? Up till some point, Corosync required IP multicast (not available on EC2), but I think it has broadcast now. Still, are Pacemaker et. al. the right tool for a cluster to…
Yang
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1 answer
pacemaker agent nvmet-subsystem missing
I tried to follow the drbd Howto "Highly Available NVMe Over Fabrics (NVMe-oF) on RHEL 9", but run into the error
`Error: Unable to find agent 'nvmet-subsystem', try specifying its full name`
`Error: Errors have occurred, therefore pcs is unable to…
kumpel4
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4
votes
2 answers
Cannot write files into highly available NFS storage created with DRBD and Pacemake. (Permission denied error returned)
I am trying to set up a highly available NFS storage with DRBD and Pacemake (first time doing this), on 2 Fedora 38 VMs.
My main guidance on this endeavor were these 2 docs:
doc1
doc2
I've managed to start the pacemaker cluster and to mount the NFS…
Yonoss
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