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RH Bugzilla Integration commented on JGRP-1855:
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Dave Stahl <dstahl(a)redhat.com> changed the Status of [bug
FD_HOST: host failure detection protocol
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Key: JGRP-1855
URL:
https://issues.jboss.org/browse/JGRP-1855
Project: JGroups
Issue Type: Feature Request
Reporter: Bela Ban
Assignee: Bela Ban
Fix For: 3.4.5, 3.5
A new protocol similar to FD_PING which detects entire host failures and suspects all
members on the failed host.
Features are:
* Contrary to FD_PING which uses a ring structure, FD_HOST will have everyone ping
everybody else (similar to FD_ALL)
** A structure keeps track of hosts (IP addresses) and members on those hosts
*** Example
||192.168.1.2||192.168.1.3||192.168.1.5||
|A,B,C|D,E,F|X,Y,Z|
* We sort the members lexically and the *first* member runs a ping against each other IP
address, e.g. A pings 192.168.1.3 and 192.168.1.5, D pings 192.168.1.2 and 192.168.1.5
etc
* The ping command itself is pluggable and can be a Java class (e.g. using
{{InetAddress.isReachable()}}, a script or a command (e.g. {{/sbin/ping}}).
* When an entire host is suspected, we suspect *all* cluster members on it
** Example: if B suspects 192.168.1.5, members X, Y and Z are suspected and removed from
the view