A cluster manager is a software for the management of a computer cluster (group from several computers). It is to Switchover for maintenance purposes for administrative procedures in the cluster at the disposal and automates usually procedures like the Failover from the primary system to the Standby system in the event of an error as well as. As synonym also the term cluster commodity is common.

For the recognition of a loss of a computer in the cluster the so-called cluster Heartbeat is usually used in connection and/or in addition with a quorum, a signal, which is exchanged over a network connection between the cluster knot (individual computers in the cluster). If the Heartbeat of a computer grows silent, a loss of the same is accepted and a Failover (an assumption of the services such as data bases, web server or Application server) is introduced.

Some managers offer cluster the possibility of developing own agents. This variant does not cover the case that a computer is available and is continued to send its cluster Heartbeat over the cluster network, however the application service (for example a data base service) any more for the order does not stand. So a cluster can examine agent whether a data base connection is possible. If this is not successful, a Failover can be likewise initiated by means of the Agents.

Typical cluster manager are

• Sun cluster for Solaris
• Veritas cluster for different operating systems such as Solaris, HPUX and Linux
• MC/Service Guard for HPUX
• HACMP for AIX
• Steeleye Lifekeeper for Linux
• Heartbeat for Linux, FreeBSD and Solaris

Literature

• Joseph Bianco, Peter Lees, Kevin Rabito: To Sun cluster 3 Programming, Prentice resound (2004), ISBN 0130479756
• Charles Bookmann: Linux Clustering, SAMS (2002), ISBN 1578702747
• William Gropp, Ewing Lusk, Thomas's L. Sterling: Beowolf cluster Computing with Linux, WITH press (2003), ISBN 0262692929
• Matthew hard, Scott Jesse: Oracle DATA cousin 10g High Availability with RAC, Flashback & DATA Guard, McGraw Hill (2004), ISBN 0072254289
• Andrea hero: Oracle 10g high availability with material Application cluster, Addison-Wesley (2004), ISBN 3827321638
• Pankaj Jalote: Tolerance in Distributed of system, Prentice putrefies resounds (1994), to ISBN 0133013677
• Evan Marcus, Hal star: Blueprints for High Availability, John Wiley & Sons Inc. (2004), ISBN 0471356018
• Heiko Bauke, Stephan Mertens: Cluster Computing, Springer (2005), ISBN 3540422994
• Michael Soltau: Unix/Linux high availability, MITP (2002), ISBN 3826607759
• Alex Vrenios: Linux cluster Architectur, SAMS (2002), ISBN 0672323680
• Joseph D. Sloan: High performance Linux cluster with OSCAR, Rocks, openMosix, and MPI, O'Reilly & Associates (2004), ISBN 0596005709

See also

High availability | cluster (computer) | asset/passive cluster | asset/active cluster | Beowulf cluster | Oracle material Application cluster | MC/ServiceGuard | HACMP | Sun cluster | Veritas cluster | Lifekeeper | Heartbeat | reliability

Related links

• Talk has
• Veritas cluster manager
• Sun cluster manager
• ibmsw/high_avail_network/hacmp.html HACMP
• MC/ServiceGuard
• Linux hectar project

Articles in category "Cluster manager"

We found here 3 articles.

Related Websites

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• redhat.com |
  The Cluster Manager feature of Red Hat Cluster Suite provides an application failover ... With Cluster Manager, these applications can be deployed in high ...