[mod_cluster-issues] [JBoss JIRA] (MODCLUSTER-550) Failover targets should be chosen deterministically

Failover targets should be chosen deterministically --------------------------------------------------- Key: MODCLUSTER-550 URL: https://issues.jboss.org/browse/MODCLUSTER-550 Project: mod_cluster Issue Type: Bug Components: Native (httpd modules) Affects Versions: 1.2.13.Final, 1.3.5.Final Reporter: Paul Ferraro Assignee: Paul Ferraro Fix For: 2.0.0.Alpha1, 1.2.14.Final, 1.3.6.Final Under the following conditions: 1. A request arrives for a session with an unknown route 2. A request arrives for a session with a known route in an error state, or if the intended worker is unresponsive and needs to failover ... the failover target must be chosen in a deterministic way. This is meant to mitigate the situation where concurrent requests failover to different nodes and cause cluster-wide contention for the session. Given a consistent ordering of workers (e.g. lexographically), the failover target should be chosen by something like: hash code of session id % active worker count.