Christopher Tubbs created ACCUMULO-2061:
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Summary: 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
Reporter: Christopher Tubbs
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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