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Posted to common-dev@hadoop.apache.org by "Paul Han (JIRA)" <ji...@apache.org> on 2013/10/17 02:44:42 UTC

[jira] [Created] (HADOOP-10053) fix typo and add clarification to ViewFs javadoc

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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