Linux-HA provides a heartbeat and IP address takeover functions for a high-availability Linux cluster.
The basic goal of the High Availability Linux project is to:
Provide a high-availability (clustering) solution for Linux which promotes reliability, availability, and serviceability (RAS) through a community development effort.
The Linux-HA project is a widely used and important component in many interesting High-Availability solutions. We estimate that we currently have around thirty thousand installations up in mission-critical uses in the real world since it became suitable for mission critical production in 1999. Interest in this project continues to grow. These web pages are average more than 17000 hits per day, and we see around 100 downloads of our software per day.
Heartbeat now ships as part of SUSE Linux, Mandriva Linux, MSC Linux, Debian GNU/Linux, Ubuntu Linux, Red Flag Linux, and Gentoo Linux. Ultra Monkey, and several company's embedded systems are also based on it. Although this is called the Linux-HA project, the software is highly portable and runs on FreeBSD and Solaris as well (even MacOS X from time to time).
There have been many articles and chapters in books written on this project and software. See the PressRoom for more details.
We have put our foot on the road to being competitive with commercial systems similar to those described in D. H. Brown's 1998 or March 2000 analysis of RAS cluster features and functions. In most important respects, we think you'll find that Linux-HA has achieved this level of competitiveness with our release 2 software.
This release 2 series brings technologies and basic capabilities which match or exceed the capabilities of many commercial HA systems. We think you'll be surprised. An R2 getting started guide is available.
We also work well with the LVS (Linux Virtual Server) project and expect to continue to collaborate with them in the future, since our goals are complementary.
What's New in This Release:
· This release has significant bugfixes and enhancements, making it a worthwhile upgrade for anyone running R2 CRM-style configurations, or who would like to.
· An OCF RA for Xen guests and Chinese GUI support have been added.
· ipfail has been replaced and generalized (limited testing). Master/slave testing and fixes.
· Significant cibadmin fixes.