Introduction This post is the continuation of the series of posts for setup a High available NFS server, check the first post to setup the iSCSI storage part: http://opentodo.net/2015/06/high-available-nfs-server-setup-iscsi-multipath/ On this post I’ll explain how to setup the NFS cluster
High available NFS server: Setup iSCSI & multipath
Introduction On this series of post I’ll explain how to setup a high available and redundant NFS cluster using iSCSI with DM-Multipath and Corosync & Pacemaker to manage the cluster and the resources associated. The objective of this scenario it’s create
Setup Redis Failover with Redis Sentinel
Recently I’ve been playing with redis, to study as an alternative for memcached for one project. One of my main requirements was to implement a good failover solution for a key-value memory database, actually you’ve many ways to do it
Configuring Galera arbitrator
Galera arbitrator comes with the galera cluster and it’s a daemon to avoid an split brain situation for a mysql cluster typically configured with two nodes. An split brain in clustering is a situation where one node of a cluster is not
MySQL Multi Master replication with Galera
Galera is a synchronous multi-master cluster for MySQL/InnoDB databases. Some features and benefits of Galera are: Synchronous replication. Multi master topology. Read/Write to any cluster node. Automatic membership control. Data consistency between replica nodes. Read and write nodes scalability. Distributed
HTTPS Load Balancer with HAProxy & Stunnel
HAProxy is a load balancer and proxying for TCP and HTTP based applications. This software is supported for very common Unix and Linux based systems, and works with multiple protocols. HAProxy is very common used as a frontend http servers
Load balancing with IPVS + Keepalived
IPVS implements load balancing for level transport inside Linux kernel. Running as frontend balancing the request from the clients to the backend servers using different methods of forwarding and load balance algorithms. Basically supports three methods of package forwarding: NAT
Configuring a failover cluster with heartbeat + pacemaker
Heartbeat is a daemon that provide services of clustering, this allows the exchange of messages between the machines running Heartbeat and check the health of them. On this post I’ll show the configuration of a simple cluster with failover and sharing