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0
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0answers
18 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 ...
0
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0answers
48 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 ...
3
votes
1answer
61 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 ...
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0answers
87 views

corosync is not in sync

Could you please help out show me how to form a cluster? corosync & pacemaker are used. two nodes rac0 ip 192.168.0.140 & rac1 ip 192.168.0.142 They are not shown in each other. They are ...
2
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0answers
55 views

How to let Corosync / pcs control nginx?

Folks, I'm trying to replace a single aging load balancer with multiple virtual machines running nginx. However after I got centos 7 and nginx installed I realized that heartbeat has been ...
1
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0answers
60 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
votes
1answer
61 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 ...
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0answers
137 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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2answers
220 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: ...
1
vote
0answers
353 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
244 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 ...
0
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1answer
137 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
vote
0answers
90 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 ...
0
votes
1answer
117 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 ...
0
votes
1answer
89 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
votes
1answer
219 views

Clustered Apache 2.4 LoadBalancer displays no content on /balancer-manager

I have a Clustered Loadbalancer (pacemaker, corosync, apache 2.4) on CentOS 7. There are two configuration files, one for the actual balanced site and one for the balancer-manager. When I access the ...
1
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1answer
705 views

Corosync/Pacemaker + Haproxy Failed Actions: insufficient privileges

I setup a Corosync/Pacemaker cluster + HAproxy using the following guide on Ubuntu 14.04 LTS: ...
0
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2answers
2k views

corosync pacemaker crm status show DC : none and offline

i'm new to corosync and pacemaker and try to build cluster by using vm node1 & node2. here is the /etc/corosync/corosync.conf # Please read the corosync.conf.5 manual page compatibility: ...
2
votes
1answer
195 views

How do I set the pacemaker cluster name with pcs?

I'm running two pacemaker clusters on the corosync stack on CentOS 7 with all packages up to date with the distro release/updates packages. Both clusters shows no cluster name with the command pcs ...
1
vote
1answer
93 views

Corosync 2.3.3: Unable to enable cipher

I'm trying to set up a new pacemaker/corosync stack of 2 machines. I was using it before with corosync1, but on Ubuntu 14.04 I've got corosync 2.3.3 OK - I said, and tried to use this version of ...
1
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2answers
338 views

drbd corosync cluster second node is trying to be primary all the times

We are facing the problem with drbd corosync cluster. On one node who is primary all resources(mysql services,drbd) are working fine. But the second node is trying to be primary all the times. The ...
0
votes
2answers
546 views

corosync fails to install

I was trying to setup cluster using corosync and pacemaker on RHEL6 (CentOS release 6.5) I have added following repo data [haclustering] name=HA Clustering type=rpm-md ...
0
votes
0answers
149 views

RabbitMQ master-master queue replication

Is there such thing as master-master queue replication for RabbitMQ (or active/active setup)? I am looking for a solution to make rabbitMQ HA. What I am wishing to achieve is to put rabbitMQ behind ...
0
votes
1answer
45 views

Resource serving is back to the primary node even though stickiness is set

This is my current proof-of-concept set up node ha1 node ha2 primitive HA-mysql lsb:mysql \ op monitor interval="15s" primitive VIP ocf:heartbeat:IPaddr2 \ params ip="10.100.0.10" ...
0
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0answers
45 views

Secondary floating IP on TUN/TAP interface

I'm currently working on a HA Cluster implemented using Corosync 2 and Pacemaker and I've run into a network limitation beyond my control that prevents me from implementing floating virtual IPs. Now ...
1
vote
1answer
403 views

Simple fencing/STONITH script in Centos 7

I am installing a simple Corosync/pacemaker/drbd high availability cluster using Centos 7 and would like to provide fencing/STONITH using custom hardware (power switches using USB connections). As ...
1
vote
1answer
691 views

redhat cluster failover not working (corosync [TOTEM ] Retransmit List)

I'm using following: [root@kpdbm01 ~]# cat /etc/redhat-release Red Hat Enterprise Linux Server release 6.5 (Santiago) [root@kpdbm01 ~]# uname -a Linux kpdbm01 2.6.32-431.20.3.el6.x86_64 #1 SMP Fri ...
0
votes
1answer
107 views

Corosync and Pacemaker deployment

I'm currently working on a deployment architecture for a Postgres HA 1 Master/ 1 Slave scenario. After reading lots and lots of documentation I've decided to start using Pacemaker in conjunction with ...
0
votes
2answers
255 views

Corosync :: Restarting some resources after Lan connectivity issue

I am currently looking into corosync to build a two-node cluster. So, I've got it working fine, and it does what I want to do, which is: Lost connectivity between the two nodes gives the first node ...
0
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0answers
52 views

Corosync zombie/defunct processes

We have one server where it periodically occurs, that corosysc suddenly generates zombie/defunct processes. Corosync is working fine for a couple of hours but then suddenly it generates processes ...
0
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1answer
107 views

DRBD/Corosync mysql clutser

I have configured HA cluster on two nodes host1 and host2. host1 is master and host2 is slave. If I shutdown host1 then host2 never comes up as master until I restart openais service. Some time I ...
1
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1answer
379 views

Corosync dynamically add node

I have been experimenting with Pacemaker & Corosync for a HA setup. I installed it on two Ubuntu 14.04 Linode's and after a lot of back and forth on outdated config examples and tutorials, managed ...
1
vote
1answer
412 views

Configuring resources for Galera and Corosync/Pacemaker

I can't seem to find a proper way of setting up resources in pacemaker to manager my Galera cluster. I want a VIP that will failover betwen 5 boxes ( this works ), but I would also like to tie this ...
1
vote
1answer
303 views

ldirectord ipvsadm not show reals ip and not work wtih pacemaker and corosync

first thanks for your time. I'm having a problem with ldirectord that I can not solve, I comment my situation: I have two nodes with pace maker and corosync and configure somes resources: ...
2
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1answer
2k views

multicast address use in corosync

I'm wondering about the purpose of the multicast address in the corosync messaging software : Since we have to bind each net interface with an IP address and a specific port, and each ring communicate ...
2
votes
1answer
667 views

NFS failover fails with stale file handles while migrating resources

Running into a bit of a problem here , I set up two servers ( Centos 6 ) with Glusterfs and a shared directory between them, I have moved the nfs directory to the shared Gluster folder and have ...
2
votes
1answer
2k views

2 corosync nodes not online together (one offline, one online)

I am currently trying to set up corosync based on this tutorial: http://www.howtoforge.com/how-to-set-up-an-active-passive-postgresql-cluster-with-pacemaker-corosync-and-drbd-centos-5.5-p3 However, ...
0
votes
1answer
192 views

Cluster IP Address in HA Environment CentOS (5.x)

I am in the process of installing High Availability CentOS (5.x) setup with Fail-over capacity, I have 2 identical XEN VPS's in two different locations, every VPS has a private IP and a public IP, I ...
0
votes
1answer
223 views

Pacemaker: dynamic location constraints

I have a corosync cluster involving several machines that have different roles within the cluster. I have some clone resources grouped together and I set up everything to behave as an opt-in cluster: ...
0
votes
2answers
1k views

Starting a service in a corosync pacemaker failover cluster

first off all my setup 2 VM running Fedora 19 in a pacemaker/corosync failover cluster, they have 1 cluster IP 1 VM running Fedora 19 monitoring both VM's with nagios Right now nagios is running on ...
1
vote
1answer
141 views

Installing DRBD on XEN CentOS 5.8 (Stable)

I am trying for days to achieve HA with fault tolerance between my existing two XEN VPS's one located in Tokyo and the other located in US (both have the same setup and the same configurations, I am ...
1
vote
1answer
707 views

crm resource cleanup command in pcs?

Is there an alternative command for crm resource cleanup <rsc> in the pacemaker configuration system? I got the following error message from pcs status and I found on different sites, that a crm ...
1
vote
1answer
44 views

Automaticaly commit when updating pacemaker configuration

I'm trying to automate the administration of my servers which are running corosync/pacemaker. For that I generate a file containing the modifs that needs to be applied to the configuration. To apply ...
3
votes
1answer
294 views

Pacemaker between Centos 5 and Centos 6

I'm having some troubles when configuring pacemaker+corosync between Centos 5 and Centos 6. Here is ouput of crm_mon: On node1: Last updated: Sun Jul 21 19:02:21 2013 Last change: Sun Jul 21 ...
0
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2answers
395 views

Using DRBD with 100mbit uplink

we are planing to use drbd to sync two servers (different hardware) to get kind of HA in case the master server dies. The servers are hosted physically in the same datacenter (Hetzner in germany) and ...
0
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1answer
398 views

How to make active/passive jboss resource in pacemaker

I want to configure my pacemaker for jboss server. I have 2 nodes with mysql master/slave configured. The problem is I want to start jboss on node which is located master database. The one possible ...
3
votes
1answer
372 views

corosync binding to 127.0.0.1 instead of correct interface

I have the following problem when trying to implement a two-node failover cluster, using Hetzner as the hosting provider. my corosync.conf is as follows: # Please read the corosync.conf.5 manual ...
1
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1answer
266 views

corosync and multiple load balancers

I am trying to provide HA capabilities for our load balancers (nginx, pgpool and haproxy optionally) using pacemaker/corosync. I have defined three primitives: 1 for the failover IP, 1 for ...
1
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1answer
464 views

Why does pacemaker start on the secondary node instead of the primary?

I have two Linux nodes running httpd service. When I try to add the httpd resource on the primary node, the service starts on the second node instead of starting on the primary. What am I missing ...
0
votes
1answer
509 views

Corosync with Pacemaker Resource explanation

I have the following resource: primitive WowzaMediaServer lsb:WowzaMediaServer \ op monitor interval="30s" timeout="60" \ op start interval="0" timeout="60" \ op stop ...