users@shoal.java.net

detecting when contact is no longer in doubt after a missing heartbeats

From: Mike Kanaley <mkanaley_at_tibco.com>
Date: Wed, 28 May 2008 07:13:06 -0700

Hello,

  Say some of the heartbeats from a group member are lost.

A FailureSuspectedSignal will be sent.

Then one of two situations will occur:

1) the group member is actually down in which case a
FailureNotificationSignal is sent. OR

2) the group member is actually up and resumes heartbeats.

My first question is will a JoinNotificationSignal be sent in this case?

It is not clear from the documentation that this will happen.

 

Next question.

Say some of the heartbeats from a group member are lost.

A FailureSuspectedSignal will be sent.

Say the loss of heartbeats continues until a FailureNotificationSignal
is sent but the group member is actually alive and well (someone
unplugged the network cable).

I am assuming when the network problem is fixed that a
JoinNotificationSignal will happen.

Is that correct too?

 

Thanks,

-mike