Paul Han created HADOOP-10053:
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Summary: fix typo and add clarification to ViewFs javadoc
Key: HADOOP-10053
URL: https://issues.apache.org/jira/browse/HADOOP-10053
Project: Hadoop Common
Issue Type: Improvement
Components: fs
Affects Versions: 2.0.5-alpha
Reporter: Paul Han
Priority: Trivial
When viewFs is used to hide the details of federated namespace, HA nn, etc.,
the best HDFS url format becomes fuzzy. It's not directly used by user. But
internally it's being referred not only at run time as FileSystem Cache key,
but also used in other cluster setup in hdfs-site.xml.
This ticket is to improve the javadoc to make cluster admin to be aware of the
fact that the hdfs urls have to unique within company. Otherwise, the
read/write operations among clusters will be erroneous.
In details, in ViewFs javadoc, replace nnXXXXX with nnXXXX.example.com.
Hope it helps.
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