Siyao Meng created HDFS-13838:
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Summary: WebHdfsFileSystem.getFileStatus() won't return correct
"snapshot enabled" status
Key: HDFS-13838
URL: https://issues.apache.org/jira/browse/HDFS-13838
Project: Hadoop HDFS
Issue Type: Bug
Components: hdfs
Affects Versions: 3.0.3, 3.1.0
Reporter: Siyao Meng
Assignee: Siyao Meng
"Snapshot enabled" status has been added in HDFS-12455 by [~ajaykumar].
However, it is found by [~jojochuang] that WebHdfsFileSystem.getFileStatus()
won't return the correct "snapshot enabled" status. The reason is that
JsonUtilClient.toFileStatus() did not check and append the "snapshot enabled"
flag to the resulting HdfsFileStatus object.
Proof:
In TestWebHDFS#testWebHdfsAllowandDisallowSnapshots():
```java
// allow snapshots on /bar using webhdfs
webHdfs.allowSnapshot(bar);
+// check if snapshot status is enabled
+assertTrue(dfs.getFileStatus(bar).isSnapshotEnabled());
+assertTrue(webHdfs.getFileStatus(bar).isSnapshotEnabled());
```
The first assertion will pass, as expected, while the second assertion will
fail because of the reason above.
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