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).

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74 views

Multi-state MySQL master/slave pacemaker resource fails to launch on cluster nodes

Setup I'm setting up an HA cluster for a web application using two physical servers in a Corosync/Pacemaker managed cluster. After finding out I was heading the wrong way, I decided to use ...
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1answer
29 views

Get IP of node running a specific resource when demoting master nodes to slaves

Setup I am setting up a HA cluster for a web application with 2 nodes (2 physical servers): node1 (current master node) node2 (current slave node) Using Corosync & Pacemaker I was able to ...
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1answer
26 views

How to make node join the cluster (Pacemaker, Corosync 2 node setup) automatically after disconnection / unplugging?

I have a 2 node cluster running Corosync and Pacemaker. If I physically unplug the network cable on one node, the other one becomes standalone. But when I plug the network cable back in, I want it ...
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1answer
43 views

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 ...
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1answer
65 views

Possible to set the specific order of a resource in a Pacemaker group?

Given the Pacemaker/Corosync resource configuration described below, is it possible to add a resource in a specific position within the resource group? The configuration is CentOS 7.2 using the ...
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1answer
140 views

Can not start PostgreSQL replication resource with Corosync/Pacemaker

I'm setting up a PostgreSQL replication on two servers (CentOS 6.5) with HA by Corosync/Pacemaker. My software info: postgresql91-9.1.19-1PGDG.rhel6.x86_64 ...
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48 views

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, ...
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39 views

new two node cluster not behaving right

Been new to pacemaker, I’m trying to create my first cluster of two nodes, but it seems to behave a little strange. Following this guide but am unable to do f.ex.: [root@afnA ~]# pcs property set ...
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126 views

nginx high-availability with corosync and pacemaker

I configured nginx in a failover with corosync and pacemaker. Everything looked until the test of the failover: The VirtualIP is transmitted to the other host, but the resouce reverseproxy fails to ...
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28 views

Cluster pacemaker active/active low performance

I have a problem in my cluster active active configuration: pacemaker 1.1.12 corosync 1.4.7 cman 3.0.12 resource-agent 3.9.5 Varnish 4.0 Config: Cluster name: Clu1 Last updated: Tue Sep 8 ...
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1answer
73 views

Pacemaker - how to monitor and stop service on wrong node (without dependent services)

I have four nodes A-D with service1 clone (clone-max 3) and with 3 virtual IPs. I have constraints - clone-ip1, clone-ip2, clone-ip3 - this works well when only pacemaker handles services. I'd like ...
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39 views

Pacemaker failover on service failure without managing the service

I have a rabbit mq ha/cluster, and a virtual ip shared between the two nodes by pacemaker. The problem is that pacemaker will only failover if the entire active host goes down, but not if rabbit mq ...
0
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1answer
53 views

pacemaker failover nginx only once

I setup a cluster with two nodes with pacemaker 1.1.10 on CentOS 7. Then I downloaded a resource agent for nginx from github I tested my setup like this: Node 1 is started with the nginx and vip, ...
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2answers
231 views

pcs status error httpd_monitor_5000 on server 'not running' (7):

Error Message Failed actions: httpd_monitor_5000 on abc-zabserver-b 'not running' (7): call=65, status=complete, last-rc-change='Wed Jul 15 21:44:43 2015', queued=0ms, exec=8ms pcs status ...
0
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1answer
268 views

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 have a Zabbix active/passive cluster using pacemaker and cman. However, I am seeing the following in "pcs status" and during failover the zabbix-server service is not coming up. The floating IP ...
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0answers
282 views

SLES 12 High Availability Cluster - scsi persistant reservation fencing

I'm trialling SLES 12 w/ HAE to run a Fileserver cluster consisting of two nodes. Idea was to use SCSI persistant reservation as a fencing method using the fence_scsi script from stonith fence agents. ...
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1answer
46 views

Pacemaker and Stonith : passive node won't bring up resources

I'm working with Pacemaker and Stonith for High-Availability with a 2-node cluster (nodes called here A and B). Both nodes have one IPMI as fence device. The deal is : A is currently running ...
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1answer
100 views

DRBD always causing splt brain after restart

I'm absolutely new to the whole cluster topic (pacemaker with DRBD, etc) and in general new to linux (using it on a daily basis for about two months now). Actually I'm playing around with a simple ...
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364 views

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 ...
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16 views

VIP (Pacemaker) - Second VIP on host stops responding after random period of time

I've got a host that was recently installed with Pacemaker, 3 physical interfaces, on two of which a VIP has been setup, VIP1 appears to be working flawlessly, while VIP2 becomes unavailable after a ...
2
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1answer
426 views

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 ...
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1answer
168 views

Pacemaker ClusterIP stops working after 15 minutes but is still running

I am running Corosync and Pacemaker via a cman stack, in an active-active setup delivering web pages, and I've hit a brick wall. I'm using the IPaddr2 resource agent to have an IP that is used ...
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81 views

corosync/pacemaker “stale” state after a week of running

I have a simple 3 node pacemaker/corosync setup. Ubuntu 14.04.2. 3 nodes, 2 resources - IPs - configured. ii crmsh 1.2.5+hg1034-1ubuntu4 all CRM ...
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1answer
54 views

Pacemaker continously logging “Changed active directory”

I have a newly installed CentOS 6.6 two-node cluster using Pacemaker. Every 10 seconds /var/log/pacemaker.log shows this "Changed active directory to /var/lib/pacemaker/cores/root" message (and ...
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42 views

ActiveMQ with Pacemaker and Corosync

I am trying to configure ActiveMQ with Pacemaker and Corosync, has anyone done this already? I couldn't find anything remotely related on Google. In fact, I am looking for an ActiveMQ resource agent ...
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1answer
296 views

Zabbix web interface says Zabbix server is offline when failing over to passive node

Two Zabbix 2.4 servers using CentOS 6.6 with an external MySQL DB, both servers are configured to connect to this DB when they are running. I followed a combination of Zabbit High Availability guide ...
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86 views

Can pacemaker retry monitor action on error?

I created simple pacemaker agent for managing MySQL. It works quite well, but there is 1 thing that I can't understand. When resource is "Started", and monitor action returns one of: ...
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0answers
124 views

pacemaker/corosync node doesnt work after system upgrade

Few days ago I updated(yum update) one of my cluster node. While yum was performing cleaning operations after upgrade it tried to restart pacemaker. This operation hanged for quite some time until I ...
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0answers
315 views

How do I force IPV4 with PCS? (Pacemaker/Corosync)

I'm setting up a Pacemaker/Corosync cluster with a DRBD mount for a highly available Webapp in a secure environment. This is running on CentOS 7. The cluster is working. However to get this system ...
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0answers
119 views

Pacemaker not starting

I'm trying to get pacemaker/corosync running and it fails to start. After installing pacemaker package on debian, I've edited /etc/corosync/corosync.conf to include: interface { # The ...
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2answers
563 views

How can I set resource stickiness in pacemaker?

I'm playing around with Red Hat's High Availability Add-On, everything seems working fine however I have one issue: Whenever I reboot one of nodes 7test2, resource group g1 migrates to 7test1 (by ...
3
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1answer
129 views

Pacemaker error on failback with drbd

I have two nodes in my cluster with drbd+pacemaker+corosync When the first node fails, the second assumes the service and it's ok, but when we have to failback (node1 back online) it shows some errors ...
0
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1answer
601 views

HAProxy + Heartbeat cluster active/active?

I have 2 servers running HAProxy to load balance some web servers and database servers with Heartbeat to cluster them in active/passive mode. At the moment, if the active server dies then the passive ...
2
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0answers
252 views

Is it possible to prevent pcs/dlm/crm from fencing the node when it fails?

Is it possible to prevent pcs/dlm/crm from fencing the node when it fails? I use cluster only to be able to build GFS2 storage, and there's my own way of avoiding split-brain. So I do not need things ...
0
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1answer
153 views

Is it possible for corosync / pacemaker to consider a node active only if a particular process is running?

I want a node to be considered "online" (and thus able to get resources) only after it is ready for them (that is, a particular process is up and running.) Is there a way to configure pacemaker to ...
0
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0answers
282 views

VIP (using corosync + pacemaker) not accepting traffic until ifdown / ifup is called

I'm running Corosync + Pacemaker on Ubuntu 14.4. I set up two nodes with two VIPs, and when I bring pacemaker down in one node, the VIPs do go to the other, but no traffic actually goes through the ...
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0answers
114 views

Failover pacemaker cluster, packet loss monitor

It's issue is continued from this. So, i have two test servers in one vlan. srv1 eth1 10.10.10.11 eth2 10.20.10.11 srv2 eth1 10.10.10.12 eth2 10.20.10.12 Cluster VIP - 10.10.10.100 ...
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2answers
1k views

Failover pacemaker cluster with two network interfaces?

So, i have two test servers in one vlan. srv1 eth1 10.10.10.11 eth2 10.20.10.11 srv2 eth1 10.10.10.12 eth2 10.20.10.12 Cluster VIP - 10.10.10.100 Corosync config with two interfaces: ...
0
votes
1answer
1k views

Split brain on DRBD and Pacemaker cluster

I want to put into your consideration the following situation that is currently happening on our active-passive cluster (DRBD, Pacemaker, Corosync, PostgreSQL) OS: Ubuntu server 14.04 x64 DRBD: 8.4 ...
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0answers
1k views

monitor of systemd resource with pacemaker & corosync returns “not running” when cloned while it is

The setup: - OS: CentOS 7, latest versions op Corosync, Pacemaker & PCS - two node active/active cluster with a virtual IP - on both nodes Exim is running for outoging mail (SMTP), nothing special ...
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0answers
1k views

Easiest way to install pacemaker-1.1.6 on Ubuntu 14.04 Trusty?

TLDR: see the subject line. Now here's the motivation... We have some existing clusters that successfully use Heartbeat 3.0.5 together with Pacemaker 1.1.6, on Ubuntu 12.04LTS Precise Pangolin. $ ...
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0answers
476 views

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 ...
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2answers
486 views

Debian 7: HA NAS with pacemaker, drbd and iSCSI

I currently am trying to make a highly available NAS under debian 7. I am using following packages: drbd8-utils iscsitarget iscsitarget-dkms pacemaker corosync ...
1
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1answer
3k views

pacemaker node is UNCLEAN (offline)

I am following the http://clusterlabs.org/doc/en-US/Pacemaker/1.1-pcs/html/Clusters_from_Scratch/_verify_corosync_installation.html document for setting up a 2 node cluster in AWS. The two nodes have ...
0
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1answer
308 views

Monitoring pacemaker with url trigger external agent

I have a HA setup, which now the only resource configured is Heartbeat with Active/Passive Configuration. Both running Debian 7, 64-bit in the cloud. Now i want to trigger an URL with the information ...
1
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0answers
258 views

corosync & pacemaker master / slave VIP

I'm looking for a way to have a master/slave fail-over that share 2 common virtual-IPs (on Ubuntu): vip1: 10.0.0.171 vip2: 10.0.0.172 master: 10.0.0.181 slave: 10.0.0.182 I need the following ...
1
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1answer
802 views

Is it possible to configure pacemaker with a configuration file?

I'm trying to configure pacemaker with a config file (that I can automatically generate and then ask pacemaker to "reload"). But all the examples that I see are for command-line commands or the ...
3
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1answer
249 views

IPTABLES for multiple Public IP Addresses

Currently i have two servers Running Debian 7 with HA Active/Passive setup using Pacemaker and Corosync as follows: node1->IP->xx.xx.xx.1 node2->IP->xx.xx.xx.2 VIP(Floating IP) ...
0
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1answer
215 views

How to integrate the fence_cisco_ucs.py(python) script with the pacemaker-1.1.10 and corosync-2.3.3

I have CentOS 7 on the Oracle VM VirtualBox. I have installed the pacemaker-1.1.10, corosync-2.3.3 and pcs tools. I able to create normalocf::heartbeat:IPaddr2 and ocf::heartbeat:apache etc resources. ...
0
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1answer
532 views

Ubuntu 2 Node Cluster Postgresql 9.3 with pacemaker and Streaming Replication

I'm trying to setup a 2 Node Cluster with Postresql 9.3 and Streaming Replication. Streaming Replication is successfully configured. Master is listen up and is sending to slave. I can do failover ...