[jboss-jira] [JBoss JIRA] Commented: (JGRP-236) Combine join and state transfer

Mon Jul 16 14:46:47 EDT 2007

    [ http://jira.jboss.com/jira/browse/JGRP-236?page=comments#action_12369119 ] 

Vladimir Blagojevic commented on JGRP-236:
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How are we going to handle multiple concurrent joins(view bundling) where some joining members require transfer and others not? 

> Combine join and state transfer
> -------------------------------
>
>                 Key: JGRP-236
>                 URL: http://jira.jboss.com/jira/browse/JGRP-236
>             Project: JGroups
>          Issue Type: Feature Request
>    Affects Versions: 2.2.8, 2.2.9, 2.3, 2.2.9.1, 2.2.9.2
>            Reporter: Bela Ban
>         Assigned To: Vladimir Blagojevic
>             Fix For: 2.6
>
>
> Add an additional connect(String group_name, boolean fetch_state, String state_id) method to Channel, so that we can combine joining and state transfer into 1 operation. This also requires only 1 FLUSH phase.
> The state would be returned either via pulling with Channel.receive() or pushing the setState() method in a registered Receiver/MessageListener.
> - The JOIN_REQ contains the boolean
> - The algorithm in GMS is the same as the two described above, except that before multicasting the new view and sending
>   the JOIN_RSPs and LEAVE_RSPs, we ask the application for its state (GET_APPLSTATE) and when received (GET_APPLSTATE_OK),
>   we send it back to the joining member(s), and the RESUME sending messages

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