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From "John Vines (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-4062) Change MutationSet.mutations to use HashSet
Date Thu, 19 Nov 2015 21:39:11 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-4062?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15014433#comment-15014433
] 

John Vines commented on ACCUMULO-4062:
--------------------------------------

Wouldn't this cause writes to arrive within a single tablet potentially in a different order
then the user added them?

> Change MutationSet.mutations to use HashSet
> -------------------------------------------
>
>                 Key: ACCUMULO-4062
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-4062
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: client
>            Reporter: Dave Marion
>
> Change TabletServerBatchWriter.MutationSet.mutations from a
> {code}
>   HashMap<String,List<Mutation>>
> {code}
> to
> {code}
>   HashMap<String,HashSet<Mutation>>
> {code}
> so that duplicate mutations added by a client are not sent to the server.



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