[jboss-jira] [JBoss JIRA] (JGRP-2409) Add more logging to MERGE3

[Bela Ban (Jira)]

     [ https://issues.jboss.org/browse/JGRP-2409?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bela Ban resolved JGRP-2409.
----------------------------
    Resolution: Done


I applied your changes, thanks,

> Add more logging to MERGE3
> --------------------------
>
>                 Key: JGRP-2409
>                 URL: https://issues.jboss.org/browse/JGRP-2409
>             Project: JGroups
>          Issue Type: Enhancement
>    Affects Versions: 4.1.8
>            Reporter: Olivier Peyrusse
>            Assignee: Bela Ban
>            Priority: Major
>             Fix For: 4.1.9
>
>
> MERGE3 comes with a good number of log traces. Combined with logs from TCP, TP, Merger and other protocols, it provides a good understanding of what is happening in the application.
> Yet, when it comes to the actual process of merge run by {{ViewConsistencyChecker#_run}}, we lack details about what happens before performing the merge. Particularly, we can track when VIEW_REQ messages are sent but we don't know what happen in the checker when responses are processed:
>  - which views were received?
>  - when are they received?
>  - what is the final result on which the MERGE3 logic is executed
>  - is the merge cancelled or aborted?
> In my [forked branch|https://github.com/OPeyrusse/JGroups/tree/add-loggin-to-merge3], I added 5 traces that helped me understand what was going on in my cluster.
> Tell me if it is the right way to suggest improvements.
> Regards



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