[AMBARI-24215] mpack-instance-manager output should be readable

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: ambari-server
• Assignee: Scott Duan
• Reporter: Scott Duan
• Created: 29/Jun/18 00:29
• Updated: 29/Jun/18 00:29

Description

The command line will still print an indented json output. That is not what is desirable. The command line should return a human readable output and NOT a JSON structure.
For example see the output of tree command:

tree /usr/hwx/mpacks
/usr/hwx/mpacks
├── hdpcore
│ └── 1.0.0-b415
│ ├── app_timeline_server -> /usr/hwx/modules/yarn/3.0.0.0-b167
│ ├── datanode -> /usr/hwx/modules/hdfs/3.0.0.0-b167
│ ├── hadoop_client -> /usr/hwx/modules/hadoop_clients/3.0.0.0-b167
│ ├── historyserver -> /usr/hwx/modules/mapreduce2/3.0.0.0-b167
│ ├── journalnode -> /usr/hwx/modules/hdfs/3.0.0.0-b167
│ ├── mpack.json
│ ├── namenode -> /usr/hwx/modules/hdfs/3.0.0.0-b167
│ ├── nfs_gateway -> /usr/hwx/modules/hdfs/3.0.0.0-b167
│ ├── nodemanager -> /usr/hwx/modules/yarn/3.0.0.0-b167
│ ├── resourcemanager -> /usr/hwx/modules/yarn/3.0.0.0-b167
│ ├── secondary_namenode -> /usr/hwx/modules/hdfs/3.0.0.0-b167
│ ├── timeline_reader -> /usr/hwx/modules/yarn/3.0.0.0-b167
│ ├── yarn_registry_dns -> /usr/hwx/modules/yarn/3.0.0.0-b167
│ ├── zkfc -> /usr/hwx/modules/hdfs/3.0.0.0-b167
│ ├── zookeeper_client -> /usr/hwx/modules/zookeeper_clients/3.4.0.0-b38
│ └── zookeeper_server -> /usr/hwx/modules/zookeeper/3.4.0.0-b38
└── ods
 └── 1.0.0-b279
 ├── hadoop_client -> /usr/hwx/modules/hadoop_clients/3.0.0.0-b166
 ├── hbase_client -> /usr/hwx/modules/hbase_clients/2.0.0.0-b219
 ├── hbase_master -> /usr/hwx/modules/hbase/2.0.0.0-b219
 ├── hbase_regionserver -> /usr/hwx/modules/hbase/2.0.0.0-b219
 ├── mpack.json
 └── zookeeper_client -> /usr/hwx/modules/zookeeper_clients/3.4.0.0-b38

The command line should print something like the following:

hdpcore
 |__ HDPCORE (default)
 |__ zookeeper
 |__ zookeeper_server (default)
 |─ mpack_version -> 1.0.0-b415
 |─ module_version -> 3.4.0.0-b38
 |─ instance_path -> /usr/hwx/instances/..../current
 |─ mpack_path -> /usr/hwx/mpacks/....
 |─ module_path -> /usr/hwx/modules/....
 |─ conf_dir -> /usr/hwx/instances/..../conf
 |─ log_dir -> /usr/hwx/instances/..../logs 
 |─ run_dir -> /usr/hwx/instances/..../run