[HDFS-12389] Ozone: oz commandline list calls should return valid JSON format output

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: HDFS-7240
• Fix Version/s: HDFS-7240
• Component/s: ozone
• Labels: ozoneMerge
• Target Version/s: HDFS-7240
• Hadoop Flags: Reviewed
• Assignee: Weiwei Yang
• Reporter: Weiwei Yang
• Created: 04/Sep/17 04:17
• Updated: 26/Apr/18 21:53
• Resolved: 12/Sep/17 03:09

Description

At present the outputs of listVolume, listBucket and listKey are hard to parse, for example following call

./bin/hdfs oz -listVolume http://localhost:9864 -user wwei

lists all volumes in my cluster and it returns

{
    "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
  }
  ...

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.