[jboss-jira] [JBoss JIRA] Created: (JGRP-1219) S3_PING: generate unique bucket name

[Bela Ban (JIRA)]

S3_PING: generate unique bucket name
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                 Key: JGRP-1219
                 URL: https://jira.jboss.org/browse/JGRP-1219
             Project: JGroups
          Issue Type: Feature Request
            Reporter: Bela Ban
            Assignee: Bela Ban
             Fix For: 2.6.16, 2.10


The S3 bucket name space is global, therefore collisions between bucket names are likely. To prevent this, generate unique bucket names. This is done as follows:
- Introduce a new property 'prefix'
- If null, we use the bucket name as defined by 'location'
- If not, we list all buckets and pick the first bucket starting with "<prefix>-". This will be the new location
- If not found, we set location = "<prefix>-<UUID>"

Prefix could be for example set to "jboss-6-m4" for JBoss6 and to "jboss-7-ga" for JBoss7, then there would not be any collisions between different JBoss versions. The UUID generation makes sure that there are no collisions between bucket names

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