ClusterLabs > Pacemaker

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- "The definitive open-source high-availability stack for the Linux - platform builds upon the Pacemaker cluster resource manager." - -- LINUX Journal, - "Ahead - of the Pack: the Pacemaker High-Availability Stack" -

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Features

Detection and recovery of machine and application-level failures
Supports practically any redundancy configuration
Supports both quorate and resource-driven clusters
Configurable strategies for dealing with quorum loss (when multiple machines fail)
Supports application startup/shutdown ordering, regardless machine(s) the applications are on
Supports applications that must/must-not run on the same machine
Supports applications which need to be active on multiple machines
Supports applications with multiple modes (eg. master/slave)
Provably correct response to any failure or cluster state. The - cluster's response to any stimuli can be tested offline - before the condition exists

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Background

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- Pacemaker has been around - since 2004 - and is primarily a collaborative effort - between Red Hat - and SuSE. However, we also - receive considerable help and support from the folks - at LinBit and the community in - general. -

- The core Pacemaker team is made up of full-time developers from - Australia, the Czech Republic, the USA, and Germany. Contributions to the code or - documentation are always welcome. -

- Pacemaker ships with most modern Linux distributions and has been - deployed in many critical environments including Deutsche - Flugsicherung GmbH - (DFS) - which uses Pacemaker to ensure - its air traffic - control systems are always available. -

- Currently Andrew Beekhof is - the project lead for Pacemaker. -

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