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https://issues.apache.org/jira/browse/ACCUMULO-2222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15615945#comment-15615945
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Dave Marion commented on ACCUMULO-2222:
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This may not be true depending on the configuration.
https://issues.apache.org/jira/browse/HDFS-3702
> add footnote to documentation regarding rfile placement in HDFS in relation
> to tserver assignment
> -------------------------------------------------------------------------------------------------
>
> Key: ACCUMULO-2222
> URL: https://issues.apache.org/jira/browse/ACCUMULO-2222
> Project: Accumulo
> Issue Type: Improvement
> Components: docs
> Reporter: Arshak Navruzyan
>
> suggest adding a footnote to "2.3.1. Tablet Server." Perhaps something like
> this:
> HDFS's block placement policy determines which data nodes will hold a replica
> of the Accumulo RFile. The default HDFS placement policy is to put one
> replica on one node in the local rack, another on a node in a different
> (remote) rack, and the last on a different node in the same remote rack.
> (http://hadoop.apache.org/docs/stable1/hdfs_design.html)
> This generally ensures that the server assigned to a particular tablet will
> be a HDFS replication location for the tablet's underlying RFile.
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