%2Fclusters%2F%3AclusterId%2Fupgrade%2Fdiff clusterId TEMPLATE clusterId query config diff between current cluster and target upgrade version query config diff between current cluster and target upgrade version targetVersion QUERY application/json 200 { "controller.CommonResult" : { "code" : 0, "data" : { }, "message" : "string" }, "data" : { "configDiffInfos" : [ { "category" : "basic", "currentValue" : "20", "description" : "desc for max-merge-region-size", "instanceType" : "pd-server", "name" : "max-merge-region-size", "paramId" : "1", "range" : [ "1", " 1000" ], "suggestValue" : "30", "type" : 0, "unit" : "MB" } ] } } application/json 401 { "code" : 0, "data" : { }, "message" : "string" } application/json 403 { "code" : 0, "data" : { }, "message" : "string" } application/json 500 { "code" : 0, "data" : { }, "message" : "string" } application/json http://172.16.4.134:4100 No Authorization No Authorization