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https://issues.jboss.org/browse/JGRP-2098?page=com.atlassian.jira.plugin....
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Bela Ban commented on JGRP-2098:
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Here's an example: say we use TCP and have cluster A,B,C,D,E, which is subsequently
split into AB and CDE. There's no way for the AB side of the brain to know that
there's a CDE side, and vice versa.
With UDP, it is simple: every side sends a multicast and so the two sides learn of each
other. However, with TCP, we have to send messages individually to single members. Without
discovery, neither side will know about the other.
Discovery: reduce messages when IpAddressUUID is used
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Key: JGRP-2098
URL:
https://issues.jboss.org/browse/JGRP-2098
Project: JGroups
Issue Type: Feature Request
Reporter: Bela Ban
Assignee: Bela Ban
Fix For: 4.0
Attachments: LESS_PING.java
Since IpAddressUUID already contains the physical address, we don't need to exchange
physical addresses in the discovery phase.
Investigate whether this leads to reduced messaging in discovery, ie. only the coords
might send a response. Once the new member has the view, it automatically knows the IP
addresses and ports of all members, as the addresses in the view are of type
IpAddressUUID.
Also investigate whether address:logical_name associations should be done in a separate
protocol, e.g. NAMING.
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