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https://issues.apache.org/jira/browse/HDFS-12389?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16152110#comment-16152110
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Weiwei Yang commented on HDFS-12389:
------------------------------------
Following code to parse output
{code}
with open('keys.json') as data_file:
data = json.load(data_file)
for key in data:
for attribute, value in key.iteritems():
print attribute, value
{code}
it fails with error
{noformat}
Traceback (most recent call last):
File "testkeys.py", line 4, in <module>
data = json.load(data_file)
File "/usr/lib64/python2.7/json/__init__.py", line 290, in load
**kw)
File "/usr/lib64/python2.7/json/__init__.py", line 338, in loads
return _default_decoder.decode(s)
File "/usr/lib64/python2.7/json/decoder.py", line 369, in decode
raise ValueError(errmsg("Extra data", s, end, len(s)))
ValueError: Extra data: line 9 column 1 - line 17 column 1 (char 186 - 372)
{noformat}
> Ozone: oz commandline list calls should return valid JSON format output
> -----------------------------------------------------------------------
>
> Key: HDFS-12389
> URL: https://issues.apache.org/jira/browse/HDFS-12389
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Affects Versions: HDFS-7240
> Reporter: Weiwei Yang
> Assignee: Weiwei Yang
>
> At present the outputs of {{listVolume}}, {{listBucket}} and {{listKey}} are
> hard to parse, for example following call
> {code}
> ./bin/hdfs oz -listVolume http://localhost:9864 -user wwei
> {code}
> lists all volumes in my cluster and it returns
> {noformat}
> {
> "version" : 0,
> "md5hash" : null,
> "createdOn" : "Mon, 04 Sep 2017 03:25:22 GMT",
> "modifiedOn" : "Mon, 04 Sep 2017 03:25:22 GMT",
> "size" : 10240,
> "keyName" : "key-0-22381",
> "dataFileName" : null
> }
> {
> "version" : 0,
> "md5hash" : null,
> "createdOn" : "Mon, 04 Sep 2017 03:25:22 GMT",
> "modifiedOn" : "Mon, 04 Sep 2017 03:25:22 GMT",
> "size" : 10240,
> "keyName" : "key-0-22381",
> "dataFileName" : null
> }
> ...
> {noformat}
> this is not a valid JSON format output hence it is hard to parse in clients'
> script for further interactions. Propose to reformat them to valid JSON data.
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