hi all we have ambari cluster Version 2.5.0.3 , while all clients machines are Linux redhat first I generated the json file to my Linux machine as the following: ( on ambari server machine ) curl -H "X-Requested-By: ambari" -X GET -u admin:admin http://130.14.6.28:8080/api/v1/clusters/HDP01\?format\=blueprint > blueprint.json then I update the blueprint.json file with some changes about the parameters and their values finally my target is to upload the new blueprint.json to ambari cluster in order to take affect ! path=/root curl -H "X-Requested-By: ambari" --data @ -X POST -u admin:admin http://130.14.6.28:8080/api/v1/blueprints/HDP01 -d @$path/blueprint.json but I get the following errors ( seems because wrong syntax ) Warning: Couldn't read data from file "", this makes an empty POST. { "status" : 400, "message" : "Invalid Request: Malformed Request Body. An exception occurred parsing the request body: Unexpected character ('&' (code 38)): expected a valid value (number, String, array, object, 'true', 'false' or 'null')\n at [Source: java.io.StringReader@4a3484a6; line: 1, column: 3]" please advice what is wrong in my syntax ? and what is the right syntax in order to upload the new update blueprint.json file ... View more

we have many Ambari LAB clusters - Apache Ambari Version 2.5.0.3 my target is to find a way to update the values of services , on all the Ambari clusters , by automate the process what we do until now , is take each ambari cluster and change the services values - but this take a lot of time so if we have diff 25 ambari LAB clusters , then we need access each ambari cluster and change the values , this is very exhausting in case we have alot of values to change but we have a new idea to automate the process what we thinking is to generate the blueprint.json file as the following: curl -H "X-Requested-By: ambari" -X GET -u admin:admin http://{ambari_host}:8080/api/v1/clusters/{Cluster_name}\?format\=blueprint > blueprint.json then update/change the values from the json file and finally upload the json file on all clusters the big question is: how to update the new json update file on current ambari cluster ? is it possible scenario ? ... View more