The Linux Enterprise Cluster: Build a Highly Available Cluster with Commodity Hardware and Free Software
No Starch Press, 2005 - 464 pagine
The Linux Enterprise Cluster explains how to take a number of inexpensive computers with limited resources, place them on a normal computer network, and install free software so that the computers act together like one powerful server. This makes it possible to build a very inexpensive and reliable business system for a small business or a large corporation. The book includes information on how to build a high-availability server pair using the Heartbeat package, how to use the Linux Virtual Server load balancing software, how to configure a reliable printing system in a Linux cluster environment, and how to build a job scheduling system in Linux with no single point of failure. The book also includes information on high availability techniques that can be used with or without a cluster, making it helpful for System Administrators even if they are not building a cluster. Anyone interested in deploying Linux in an environment where low cost computer reliability is important will find this book useful.
The CD-ROM includes the Linux kernel, ldirectord software, the Mon monitoring package, the Ganglia package, OpenSSH, rsync, SystemImager, Heartbeat, and all the figures and illustrations used in the book.
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Compiling the Kernel
Synchronizing Servers with rysnc and SSH
Cloning Systems with SystemImager
Heartbeat Introduction and Theory
A Sample Heartbeat Configuration
The Network File System
Maintenance and Monitoring
The Simple Network Management Protocol and Mon
Case Studies in Cluster Administration
The Linux Cluster Environment
Downloading Software from the Internet from a Text Terminal
Troubleshooting with the tcpdump Utility
Heartbeat Resources and Maintenance
Stonith and ipfail
Cluster Theory and Practice
How to Build a Linux Enterprise Cluster
The Linux Virtual Server Introduction and Theory
The LVSNAT Cluster
The LVSDR Cluster
The Load Balancer
The HighAvailability Cluster
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Apache backup server boot build CD-ROM client computer clone cluster node cluster node manager configuration file connection tracking CPAN create daemon database debug1 default encryption key entry eth0 eth1 Ethernet example failover filesystem following command forwarding method Ganglia Golden Client haresources file Heartbeat program high-availability High-Availability Cluster highly available host name init script inside the cluster install IP address IP alias ipchains iptables ipvsadm ldirectord Linux Enterprise Cluster Linux kernel Linux Virtual Server load balancer lock arbitration LPRng LVS Director LVS-DR cluster LVS-NAT cluster messages modules monitor Netfilter NFS client normally NOTE Chapter option output packets primary server protocol real server reboot request resource script restart RPM package rsync runlevel running scheduling method secondary IP addresses sendmail shared library SNMP snmpd specify SSH client SSH server Stonith device SystemImager server tcpdump VIP1 virtual hosts Virtual Server
Pagina 1 - Pfister  defines a cluster as "a parallel or distributed system that consists of a collection of interconnected whole computers, that is utilized as a single, unified computing resource".