Yiqun Lin created HDFS-10388:
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Summary: DistributedFileSystem#getStatus returns a misleading
FsStatus
Key: HDFS-10388
URL: https://issues.apache.org/jira/browse/HDFS-10388
Project: Hadoop HDFS
Issue Type: Bug
Components: fs
Affects Versions: 2.7.1
Reporter: Yiqun Lin
Assignee: Yiqun Lin
The method {{DistributedFileSystem#getStatus}} returns the dfs's disk status.
{code}
public FsStatus getStatus(Path p) throws IOException {
statistics.incrementReadOps(1);
return dfs.getDiskStatus();
}
{code}
So the param path is no meaning here. And the object returned will mislead for
users to use this method. I looked into the code, only when the file system has
multiple partitions, the use and capacity of the partition pointed to by the
specified path will be reflected. For example, in the subclass
{{RawLocalFileSystem}}, it will be return correctly.
We should return a new meaningless FsStatus here (like new FsStatus(0, 0,
0))and indicated that the invoked method isn't available in
{{DistributedFileSystem}}.
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