[jira] [Created] (HDFS-13759) [HDFS Pagination]Does HDFS Java api Support Pagination?

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

wuchang created HDFS-13759:
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             Summary: [HDFS Pagination]Does HDFS Java api Support Pagination?
                 Key: HDFS-13759
                 URL: https://issues.apache.org/jira/browse/HDFS-13759
             Project: Hadoop HDFS
          Issue Type: Wish
          Components: fs, fs async
    Affects Versions: 2.6.0
            Reporter: wuchang


I could use *FileSystem*
{code:java}
RemoteIterator<FileStatus> listed = fs.listStatusIterator(new Path("hdfs://warehousestore/user/chang.wu/flat_level_1"));{code}
like this to get files *asynchronously*.

But in fact what I want is a pagination support, where I could pass two parameters, the 
{code:java}
offset{code}
and
{code:java}
limit{code}
, like MySQL does to get part of files under some directory;.

I know I could just implement the pagination by wrapping the *listStatusIterator*, but I think it is inefficient by wrapping this iterator.

I wonder why cannot HDFS java Api support that?



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