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https://issues.apache.org/jira/browse/CASSANDRA-4121?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13406090#comment-13406090
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Eric Evans commented on CASSANDRA-4121:
---------------------------------------

bq. If we do go with these wrappers I'd prefer to keep it as thin as possible – 
no internal synchronization, no copies on inverse(). (I think the existing 
synchronizied wrapper around the bootstrapTokens BiMap saves us exactly one use 
of the explicit lock, in pendingRangeChanges. I'm fine with giving that up.)

I think the code reads better with, than without them, but I can understand the 
argument for keeping them "thin".  Sam?

bq. Would it simplify things to make calculateNaturalEndpoints return Set? 
getNaturalEndpoints can still copy into an ArrayList for callers that want to 
sort.

I'm not sure it will simplify the existing code per say, but it's probably more 
correct.

bq. forceTableRepairPrimaryRange could use FBUtilities.waitOnFutures

I updated the patch to make it use FBUtilities.waitOnFuture (singular); The mix 
of unparametized and wildcard generic Futures is kind of a mess here.

{quote}
* @Override on SBMVM is redundant
* some redundant type information on .create calls
{quote}

Done.
                
> TokenMetadata supports multiple tokens per host
> -----------------------------------------------
>
>                 Key: CASSANDRA-4121
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4121
>             Project: Cassandra
>          Issue Type: Sub-task
>          Components: Core
>            Reporter: Sam Overton
>            Assignee: Sam Overton
>              Labels: vnodes
>             Fix For: 1.2
>
>
> _Edit0: Append patch information._
> h3. Patches
> ||Compare||Raw diff||Description||
> |[01_support_multiple_tokens_per_host|https://github.com/acunu/cassandra/compare/top-bases/p/4121/01_support_multiple_tokens_per_host...p/4121/01_support_multiple_tokens_per_host]|[01_support_multiple_tokens_per_host.patch|https://github.com/acunu/cassandra/compare/top-bases/p/4121/01_support_multiple_tokens_per_host...p/4121/01_support_multiple_tokens_per_host.diff]|Support
>  associating more than one token per node|
> ----
> _Note: These are branches managed with TopGit. If you are applying the patch 
> output manually, you will either need to filter the TopGit metadata files 
> (i.e. {{wget -O - <url> | filterdiff -x*.topdeps -x*.topmsg | patch -p1}}), 
> or remove them afterward ({{rm .topmsg .topdeps}})._

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