Backhand
Outline
mod_backhand overview
mod_log_spread overview
Web cluster problems
Practiced Solutions
Standalone server
DNS RR
Single Point Proxies
BIG/ip
Alteon
LocalDirector
HA Vs load-balancing
The mod_backhand approach
Scenario 2: overview
Scenario 1: configuration
Scenario 2: configuration
Scenario 2: benefits
flexible framework
info collection
administrative decisions
Candidacy functions
Candidacy functions 2
Slide 24
Decision process
Decision process example
Decision function API
byHostname.c
Apache Modules
Apache Environment
Info Structures
Info Architecture
Comm Architecture
Flow diagram
Distributed Logging
Distribuited Logging
Slide 37
Future decisions making
Future scalability
Backhand Project
Credits
Author: Theo Schlossnagle
E-mail: jesus@backhand.org
Homepage: http://www.cnds.jhu.edu/~jesus/