Why not all parameters from ambari cluster not represented by the blueprint json file

Why not all parameters from ambari cluster not represented by the blueprint json file ?

I generated the blueprint json file as the foolwing:

 curl -u admin:admin -H "X-Requested-By: ambari" -X GET http://10.23.4.122:8080/api/v1/clusters/HDP01?format=blueprint -o /tmp/HDP01_blueprint.json

but when I access to the ambari GUI we noticed that many parameters not appears in the blueprint json file

example of parameters from HDFS – config that not appears in the blueprint json file

DataNode failed disk tolerance

DataNode maximum Java heap size

DataNode max data transfer threads

Answer

You should be seeing all parameters in output json file.

For few parameters Ambari GUI shows different names. Example:

DataNode failed disk tolerance – appears as dfs.datanode.failed.volumes.tolerated in ouput json

DataNode maximum Java heap size – appears as dtnode_heapsiz in ouput json

DataNode max data transfer threads – appears as dfs.datanode.max.transfer.threads in ouput json