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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2
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1answer
77 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 ...
1
vote
1answer
42 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, ...
1
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0answers
41 views

Pacemaker with drbd split-brain on two nodes

Gentlemen, I have a question concerning active/passive split-brain when using pacemaker with drbd. I realize that split-brain is a long topic, but i am trying to solve one exact situation: if both ...
1
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0answers
27 views

High Availability/failsafe two different locations

I am wondering if someone could help with the setup that does not seem so difficult. I am just beginning with the multi-server setup. I apologize if my questions are dumb. I have two debian servers ...
0
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1answer
44 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
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2answers
103 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 ...
0
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0answers
90 views

AWS VPC custom VIP: How to get a IP Address assumption to work across two EC2 VPC instances?

I created an AWS VPC and three instances therein (head, nodeA, and nodeB). I also associated them all with a security group that allows fully open networking among the private (RFC-1918) addresses ...
1
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2answers
96 views

Redis: Configuration Options for limiting key/value sizes?

My boss recently asserted, in conversation, that Redis supports some configuration options for controlling maximum key or key/value sizes ... so we could set some option to prevent our applications ...
1
vote
1answer
73 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
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0answers
23 views

pacemaker cluster heavy load with sbd and noop scheduler

Anybody have experience with nood scheduler? i know the sbd process is a real time process, so with default linux io scheduler cfq, the sbd process works very well on high io heave load. The noop ...
1
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2answers
766 views

How to set up a pacemaker cluster for active/active scenario and how it works?

I try to set up my first pacemaker cluster as a FTP Server. There are two Server installed with a fresh centos 6.5 and proftpd First step was to install pacemaker and some configuration Tools with: ...
0
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0answers
15 views

Repair tables after pacemaker + drbd migration/failover

I have a master/slave pacemaker/drbd cluster that handles mysql, apache, and some other stuff. I'd like to have mysql automatically repair tables (mysqlcheck -A --auto-repair or similar) after ...
1
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1answer
52 views

Mark a resource non-critical in a Pacemaker cluster

Is there a way to set a resource as non-critical in a OpenAIS/Pacemaker cluster? e.g. 2 node cluster 1 resource group with 4 resource (A, B, C and D) If resource A, B or C fails, the cluster ...
1
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0answers
156 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 ...
0
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0answers
501 views

CentOS 6.4 iSCSI Target - crm shell error

I try to make a iSCSI Target on CentOS 6.4 with DRBD, Pacemaker, Open-iSCSI and LVM2. Now i need to prepare the HA iSCSI Target configuration on the crm shell, but if i enter the configure mode, ...
1
vote
1answer
29 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 ...
0
votes
1answer
84 views

Start pacemaker on boot in debian

I'm using corosync and pacemaker on a debian, and at each reboot I need to start pacemaker by hand. Is there a solution to make it happend automaticaly? Tanks a lot.
3
votes
1answer
152 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
votes
2answers
249 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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0answers
121 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 ...
0
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0answers
58 views

Pacemaker Resource Wont Migrate to Node on Which It Previously Failed

Well I was going to ask the question in the Title but after a brief mental interlude I solved my problem. While there may be other reasons why a resource wont migrate/move to another node, I found if ...
0
votes
1answer
143 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 ...
0
votes
1answer
144 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 ...
0
votes
1answer
66 views

pacemaker - stop a resource which was started on another node

I have a running setup of pacemaker-corosync on several ubuntu12.04 hosts. Several clone resources and a primitive. Primitive - which is an upstart job, is called "dummy". Dummy can run on only one ...
1
vote
1answer
172 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 ...
1
vote
1answer
124 views

Is possible to use Pacemaker failover without hardware?

Is possible to use Pacemaker failover without hardware? On quickstart http://clusterlabs.org/quickstart-redhat.html you can find the followowing commands: ccs -f /etc/cluster/cluster.conf ...
0
votes
1answer
165 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 ...
0
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0answers
113 views

Linux-HA pacemaker cluster resource agent for multiple IPs

Is there a pacemaker/corosync cluster resource agent that is able to manage multiple IP addresses at once? When we configure IP addresses as cluster resources with ocf:heartbeat:IPaddr2 it takes ...
0
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0answers
29 views

Pacemaker configuration with different dependencies

I have two-node HA environment with services that I want to be partially independent. There is active/active sip service with two floating IPs. There is also two active/active groups with java ...
0
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0answers
106 views

corosync + pacemaker cluster issues

I have created pacemaker/corosync cluster, and I am using: pcs resource rsc defaults resource-stickiness=100 I tried multiple time, but resource stickiness is not working. For e.g.: node_1 and ...
0
votes
1answer
66 views

can you give me feedback on an HA architecture using linux-ha and pacemaker?

I am trying to come up with an architecture for achieving HA on one of our services (in-house service, single tcp connection for all requests). Just started reading on linux-ha and pacemaker, and i'd ...
3
votes
1answer
240 views

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 ...
1
vote
2answers
6k views

crm command(cluster managment for pacemaker) not found in latest Centos 6

I have done such setup before, was no any issues. Now i can't do "crm configure" becuase no crm command availible in current package. Am I missing something? Maybe it replaced by other way/command? ...
0
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2answers
208 views

can heartbeat notice a stopped service and re-start it

I have two nodes, the complete IP failover works for them very well - when node 1 is down, node 2 grabs the IP and starts services. What i would love to know is: if the server 1 does not crash ...
-1
votes
2answers
1k views

corosync + pacemaker + nginx

I have been trying to configure and implement corosync + pacemaker + nginx to my vbox to create a High-Availability set-up between web servers. But can't find an exact tutorial on how to make it work ...
0
votes
1answer
526 views

PacemakerDRBD Mount Issue

We are stuck trying to get pacemaker to work with DRBD, and having tried various alternatives can't get our "drbd1" to mount and get some errors. NOTE: we are trying to get pacemaker to work with an ...
1
vote
1answer
204 views

Pacemaker cluster: Xen RA vs libvirt RA

Building a pacemaker cluster to manage Xen domU virtual machines the sysadm can choose between to different resource agents: the dedicated Xen resource agent (ocf:heartbeat:Xen) the libvirt based ...
1
vote
0answers
301 views

CMAN: using SBD (Storage Based Death) and watchdog as STONITH

I'm building up a 2-node cluster based on CMAN + Pacemaker cluster stack, but I have no hardware STONITH devices. However both nodes are connected to a shared storage via iSCSI and I would like to use ...
0
votes
1answer
232 views

Linux-HA Pacemaker.. NFS Resource starting “unmanaged”

My cluster I've been working on just starting acting up out of no where... It looks like I'm having an issue with the exportfs resource. Any ideas on how to troubleshoot this? I can find nothing for ...
3
votes
1answer
252 views

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 ...
0
votes
1answer
141 views

does heartbeat v3 support same resource agent types of pacemaker?

As we know, Pacemaker supports three types of Resource Agents,  LSB Resource Agents,  OCF Resource Agents,  legacy Heartbeat Resource Agents http://www.linux-ha.org/wiki/Resource_Agents ...
1
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0answers
573 views

Nginx Active/Active Cluster Setup

I am currently attempting to configure a pair of load balancing servers in an Active/Active configuration using the following: Nginx Corosync Pacemaker Applicable instructions were followed ...
1
vote
1answer
282 views

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 ...
1
vote
1answer
397 views

STONITH with a DRBD/Pacemaker/Corosync 2 node cluster

So I am seeing a lot of conflicting viewpoints out there on using STONITH with a 2-node DRBD/Pacemaker/Corosync cluster for replicating MySQL data. The example I could find on the Pacemaker website ...
3
votes
1answer
2k views

Secure IPTables rules for Corosync

I have two HA load balancers (hollywood and wolfman) running Corosync and Pacemaker. The eth1 interfaces are connected to the WAN, and the eth0 interfaces to the LAN, using a virtual IP as the gateway ...
4
votes
1answer
1k views

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 ...
0
votes
1answer
301 views

NFS exportfs spamming logs. Is this a broken setup?

I have a NFS server running Ubuntu 10.04, serving an OCFS2 filesystem. The setup is somehow complicated because the server has Heartbeat and Pacemaker installed to make a cluster with another server. ...
6
votes
1answer
3k views

MySQL: Pacemaker cannot start the failed master as a new slave?

pacemaker-1.0.12-1 corosync-1.2.7-1.1 I'm going to setup failover for MySQL replication (1 master and 1 slave) follow this guide: ...
2
votes
1answer
2k views

IP failover with 2 nodes on different subnet: cannot ping virtual IP from second node?

I'm going to setup redundant failover Redmine: another instance was installed on the second server without problem MySQL (running on the same machine with Redmine) was configured as master-master ...
4
votes
1answer
371 views

Pacemaker/corosync timeout before resource transfers

This seems like a simple question, but one I can't seem to find the answer for despite going over the pacemaker documentation multiple times. I've got corosync set up with pacemaker to share a ...