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https://jira.jboss.org/jira/browse/JGRP-897?page=com.atlassian.jira.plugi...
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Bela Ban commented on JGRP-897:
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Ok, here's an update:
- AnycastAddress is an implementation of Address
- It is multiple unicasts conceptually
- An anycast message to C and D has a destination address of AnycastAddress(C,D), which is
a list of multiple UUIDs
- UNICAST checks for AnycastAddress and inserts both C and D into its retransmission
tables
- TP then sends a message with an AnycastAddress as dest as (a) a multicast (UDP), (b)
multiple UDP datagrams (UDP) or (c) multiple TCP unicasts (TCP, TCP_NIO).
- TCP would send an Anycast(C,D) only to C and D (same for UDP datagrams)
- When a message with AnycastAddress(C,D) is received by B, it is discarded. This check
could be done by the transport, or (in the case of a singleton) by the ProtocolAdapter
- FC now has to decrement credits for all addresses in an AnycastAddress when sending a
message
- On the receiver side, an anycast message is received as if it was multiple unicasts
Anycasting: better use of logical addresses
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Key: JGRP-897
URL:
https://jira.jboss.org/jira/browse/JGRP-897
Project: JGroups
Issue Type: Task
Reporter: Bela Ban
Assignee: Bela Ban
Fix For: 2.8
See whether logical addresses allow us to handle anycasting more efficiently, ie. handle
them at the transport level, and not by sending multiple unicasts
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