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Posted to hdfs-dev@hadoop.apache.org by "Alexander Shorin (JIRA)" <ji...@apache.org> on 2016/11/21 14:30:59 UTC
[jira] [Resolved] (HDFS-9896) WebHDFS API may return invalid JSON
[ https://issues.apache.org/jira/browse/HDFS-9896?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alexander Shorin resolved HDFS-9896.
------------------------------------
Resolution: Fixed
Fix Version/s: 2.7.3
> WebHDFS API may return invalid JSON
> -----------------------------------
>
> Key: HDFS-9896
> URL: https://issues.apache.org/jira/browse/HDFS-9896
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: webhdfs
> Affects Versions: 2.6.0
> Environment: FreeBSD 10.2
> Reporter: Alexander Shorin
> Assignee: John Zhuge
> Fix For: 2.7.3
>
>
> {code}
> >>> import requests
> >>> resp = requests.get('http://server:50000/webhdfs/v1/tmp/test/\x00/not_found.txt?op=GETFILESTATUS')
> >>> resp.content
> '{"RemoteException":{"exception":"FileNotFoundException","javaClassName":"java.io.FileNotFoundException","message":"File does not exist: /tmp/test/\x00/not_found.txt"}}'
> >>> resp.json()
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> File "/home/sandbox/project/venv/lib/python2.7/site-packages/requests/models.py", line 800, in json
> self.content.decode(encoding), **kwargs
> File "/usr/local/lib/python2.7/json/__init__.py", line 338, in loads
> return _default_decoder.decode(s)
> File "/usr/local/lib/python2.7/json/decoder.py", line 366, in decode
> obj, end = self.raw_decode(s, idx=_w(s, 0).end())
> File "/usr/local/lib/python2.7/json/decoder.py", line 382, in raw_decode
> obj, end = self.scan_once(s, idx)
> ValueError: Invalid control character at: line 1 column 147 (char 146)
> {code}
> The null byte {{\x00}} should be encoded according JSON rules as {{\u0000}}. It seems like WebHDFS returns path back as is without any processing breaking the content type.
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