[jboss-jira] [JBoss JIRA] (JGRP-1855) FD_PING2: host failure detection protocol

[Bela Ban (JIRA)]

Bela Ban created JGRP-1855:
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             Summary: FD_PING2: host failure detection protocol
                 Key: JGRP-1855
                 URL: https://issues.jboss.org/browse/JGRP-1855
             Project: JGroups
          Issue Type: Feature Request
      Security Level: Public (Everyone can see)
            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_PING2 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, B 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* clusters members on it
** Example: if B suspects 192.168.1.5, members X, Y and Z are suspected and removed from the view



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