[jira] [Assigned] (ACCUMULO-2061) Deprecate instance.dfs.uri and instance.dfs.dir

["Josh Elser (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ACCUMULO-2061?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Josh Elser reassigned ACCUMULO-2061:
------------------------------------

    Assignee: Josh Elser

> Deprecate instance.dfs.uri and instance.dfs.dir
> -----------------------------------------------
>
>                 Key: ACCUMULO-2061
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2061
>             Project: Accumulo
>          Issue Type: Sub-task
>          Components: master, tserver
>            Reporter: Christopher Tubbs
>            Assignee: Josh Elser
>            Priority: Critical
>             Fix For: 1.6.0
>
>
> {{instance.dfs.uri}} and {{instance.dfs.dir}} are no longer needed with the {{instance.volumes}} property.
> Together, these two fields are needed for upgrades from relative paths, but full URIs for volumes should be specified in the {{instance.volumes}} set.
> Instead of appending {{instance.dfs.dir}} to every volume, which is a bit confusing, they should be specified explicitly in the {{instance.volumes}}.
> Example:
> {code}
>  <property>
>     <name>instance.volumes</name>
>     <value>hdfs://nn1/accumulo</value>
>   </property>
> {code}
> should be equivalent to
> {code}
>  <property>
>     <name>instance.dfs.uri</name>
>     <value>hdfs://nn1</value>
>   </property>
>  <property>
>     <name>instance.dfs.dir</name>
>     <value>/accumulo</value>
>   </property>
> {code}
> This change simplifies the semantics of configuring volumes for Accumulo to use for storage, and is a bit more obvious that we're logically configuring filesystem volumes, not "namenode URIs".



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