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
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SQL Server 2017 crashed during startup on Ubuntu with Pacemaker failover
I have installed mssql-server and mssql-server-ha on Ubuntu Server 16.04 LTS. I'm using drbd on two nodes, with pacemaker and corosync attempting to control the automatic failover between the two nodes. crm status shows 2 errors:
Failed Actions:
*…
Ben M
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1 answer
DRBD Status after Network fail become Primary/Unknown
i have the following structure:
2 nodes.
corosync + pacemaker + DRBD + OCFS2.
==============
After test Network fail the status from DRBD become:
****Primary/Unknown****
dmesg show the following:
Split-Brain detected but unresolved, dropping…
Saleh Alashkar
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1 answer
Pacemaker location constraints on resources apparently not obeyed
I have a Pacemaker setup with two STONITH resources. They have location constraints that crm configure show lists as follows:
location loc_stonith_node1 stonith_node1 rule -inf: #id eq node1
location loc_stonith_node2 stonith_node2 rule -inf: #id eq…
rookie09
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1 answer
Is OpenHPI optional (not mandatory) to Pacemaker
I have noticed that apt-get install -t jessie-backports pacemaker on Debian Jessie 8.9 also installs package openhpid, but that systemctl status openhpid.service subsequently reports that the openhpid.service is not running, because no configuration…
rookie09
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2 answers
Correct use of Pacemaker's ocf-tester with OCF resource agents
I have got a setup with DRBD, Corosync, and Pacemaker in which Pacemaker should mount a file system atop a DRBD block device on different cluster nodes, depending on nodes' availabilies. The setup is not yet fully working, therefore I try testing…
rookie09
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How to remove pacemaker, corosync and pcs thoroughly on CentOS 7?
Using two nodes:
node1: 192.168.0.1
node2: 192.168.0.2
Installed HA tools on both servers:
yum install pacemaker pcs
(It will include install corosync)
On both servers:
passwd hacluster
Set same password for cluster.
On both servers:
systemctl…
cloud_cloud
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1 answer
check_mk_agent hangs when running cluster check ONLY when triggered by network
My check_mk server connects to several RHEL nodes which have installed check_mk_agent (version 1.2.4p3). A group of these nodes belong to a pacemaker cluster.
The check_mk agent is configured by default -- a xinet service is configured bound to the…
Jdamian
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1 answer
Correct configuration of pcs and libvirt
So I was able to configure PCS and libvirt to work properly together. I can migrate VMs between my two nodes with no problems. All was working well until I needed to place one of my nodes in a standby mode for maintenance. It seems that my…
user396032
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How to make Pacemaker stop resources to be removed?
I'm trying to create an Ansible Pacemaker role that creates the CIB configuration and then pushes it. The problem is: Pacemaker refuses to destroy a resource if it is not stopped.
I'm trying then to figure out how to properly stop all the resources…
moutonjr
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2 answers
Does corosync 1.4 support public IP's ?
I am creating a cloud based cluster so for now am using uni cast to connect to other pacemaker/corosync nodes.I was able to create a cluster using private IP's. To create a cross region cluster , I wanted to use public IP's. I tried using a generic…
nwarriorch
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0 answers
Pacemaker: disallow resource on stopped node
I have a slave-ip resource which I'd like to locate on my slave under normal operation in a 2 node PostgreSQL cluster for read-only purposes.
All is fine, right till the point of failure of the pgsql service on the slave node; the slave-ip resource…
Frank
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10 answers
Unable to communicate with pacemaker host while authorising
I'm trying to configure pacemaker cluster with two hosts, I'm using two centos 7(CentOS Linux release 7.2.1511 (Core)) virtual machines.
What I did so far:
I installed packages:
yum install pacemaker corosync haproxy pcs fence-agents-all
Set…
B14D3
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how to make a Virtual ip on a 2 nodes cluster
i have a specific question, her's my situation :
1- 2 vms with drbd - pacemaker - corosync - NFs
- here's my crm configuration :
node san1
node san2
primitive drbd_res1 ocf:linbit:drbd \
params drbd_resource="res1" \
op monitor…
chubby.skelton
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0 answers
pacemaker supervisord and resource groups
For environment and config pls check
HA pacemaker monitor_5000 on zabserver-a 'not running' (7): call=53, status=complete, last-rc-change='Mon Jul 13 07:51:32 2015', queued=0ms, exec=0ms
I am now adding a service which is controlled by…
John Test
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1 answer
Need help configuring pacemaker
I'm trying to configure a 2-node openais / pacemaker cluster, and finding information / tutorials very difficult to come by.
My goal is to set up 2 MySQL servers in a master-slave replication scenerio, where I can read from both servers, but only…
Brent
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