Details
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Type:
Bug
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Status: Resolved
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Priority:
Critical
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Resolution: Not A Bug
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Affects Version/s: 0.2
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Fix Version/s: None
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Component/s: API, Core, Interpreter
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Labels:None
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Environment:
Git: master, rev. aa0742107df8715c3fa83e83b94c39259c896295
Description
According to the docs at https://github.com/cloudera/hue/tree/master/apps/spark/java#statement-output, by specifying "application/json" as MIME I should get back a JSON output result:
an object mapping a mime type to the result. If the mime type is application/json, the value will be a JSON value
However, executing this code I get back a "plain/text" result:
$ curl -H "Content-Type: application/json" -H "Accept: application/json" -X POST http://localhost:8998/sessions/ -d '{"kind": "spark"}'
{"id":0,"state":"starting","kind":"spark","log":[]}
$ curl -H "Accept: application/json" -X GET http://localhost:8998/sessions/0
{"id":0,"state":"idle","kind":"spark","log":["16/02/11 14:15:08 INFO SparkUI: Started SparkUI at http://10.100.44.51:4040","16/02/11 14:15:08 INFO SparkContext: Added JAR file:/home/milad/projects/hue/apps/spark/java/livy-assembly/target/scala-2.10/livy-assembly-0.2.0-SNAPSHOT.jar at http://10.100.44.51:54600/jars/livy-assembly-0.2.0-SNAPSHOT.jar with timestamp 1455196508415","16/02/11 14:15:08 WARN MetricsSystem: Using default name DAGScheduler for source because spark.app.id is not set.","16/02/11 14:15:08 INFO Executor: Starting executor ID driver on host localhost","16/02/11 14:15:08 INFO Executor: Using REPL class URI: http://10.100.44.51:17347","16/02/11 14:15:08 INFO Utils: Successfully started service 'org.apache.spark.network.netty.NettyBlockTransferService' on port 42576.","16/02/11 14:15:08 INFO NettyBlockTransferService: Server created on 42576","16/02/11 14:15:08 INFO BlockManagerMaster: Trying to register BlockManager","16/02/11 14:15:08 INFO BlockManagerMasterEndpoint: Registering block manager localhost:42576 with 530.0 MB RAM, BlockManagerId(driver, localhost, 42576)","16/02/11 14:15:08 INFO BlockManagerMaster: Registered BlockManager"]}
$ curl -H "Content-Type: application/json" -H "Accept: application/json" -X POST http://localhost:8998/sessions/0/statements -d '{"code": "41 + 1"}'
{"id":0,"state":"running","output":null}
$ curl -H "Accept: application/json" -X GET http://localhost:8998/sessions/0/statements/0
{"id":0,"state":"available","output":{"status":"ok","execution_count":0,"data":{"text/plain":"res0: Int = 42"}}}
I'd expect to see something different than this:
{"text/plain":"res0: Int = 42"}
For example:
{"application/json":"42"}