Tagged Questions

0
votes
0answers
10 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
votes
0answers
21 views

Can a Pacemaker cluster change VM memory allocation based on RAM availability on each node?

I'd like to build a two or three node Pacemaker cluster that would manage Xen (or possibly KVM) virtual machines. Is it possible to set up the Pacemaker cluster (or some of its components) in such a ...
-1
votes
2answers
269 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 ...
1
vote
0answers
282 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 ...
5
votes
1answer
2k 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: ...
1
vote
2answers
4k views

How to setup STONITH in a 2-node active/passive linux HA pacemaker cluster?

I am trying to setup an active/passive (2 nodes) Linux-HA cluster with corosync and pacemaker to hold a PostgreSQL-Database up and running. It works via DRBD and a service-ip. If node1 fails, node2 ...
0
votes
1answer
770 views

Pacemaker complex resource colocation

I am working on a pacemaker project for our master and slave databases to perform IP based failover. There will be two IP resources, one for the master, and one for the slave that have to move ...
0
votes
3answers
1k views

Pinging Virtual IP for Linux HA cluster from a different subnet does not work

I have setup a Linux cluster with Corosync/Pacemaker, and the two cluster nodes are within the same subnet sharing a virtual IP. For machines within the same subnet, they can ping the virtual IP ...
0
votes
1answer
435 views

after split brain recovery filesystem not mounted

I have an active/passive high availability cluster with pacemaker+split brain. After split brain condition I use automatic split-brain recovery to recover my systems. The problem is that since file ...
1
vote
1answer
973 views

LDAP (389 Directory Service) and Pacemaker with Multi-Master

I'm trying to setup a pair of LDAP servers running 389 (formerly Fedora DS) in high availability using Pacemaker with a floating IP. In addition, 389 supports multi-master replication, where all ...
8
votes
7answers
10k views

Alternatives to Heartbeat, Pacemaker and CoroSync?

Are there any major alternatives for automatic failover on Linux besides the typical Heartbeat/Pacemaker/CoroSync combinations? In particular, I'm setting up failover on EC2 instances, which only ...
1
vote
4answers
4k views

NFS v4, HA Migration, and stale handles on clients

I'm managing a server running NFS v4 with Pacemaker/OpenAIS. NFS is configured to use TCP. When I migrate the NFS server to another node in the Pacemaker cluster, even though the metadata is ...