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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