[LIVY-271] traceback could be json list or json object which is misleading

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.3
• Fix Version/s: 0.3
• Component/s: REPL
• Assignee: Jeff Zhang
• Reporter: Jeff Zhang
• Created: 12/Dec/16 03:20
• Updated: 13/Dec/16 05:31
• Resolved: 13/Dec/16 05:31

Description

This is the 2 statement output I get. You can see that the traceback of the first statement is a json object while the second is a json list. This is misleading to users especially user want to deserialize these json string to java plain object.

    {
      "id": 1,
      "state": "available",
      "output": {
        "status": "error",
        "execution_count": 1,
        "ename": "Error",
        "evalue": "incomplete statement",
        "traceback": {}
      }
    },
    {
      "id": 2,
      "state": "available",
      "output": {
        "status": "error",
        "execution_count": 2,
        "ename": "Error",
        "evalue": "<console>:26: error: value sm is not a member of org.apache.spark.rdd.RDD[Int]",
        "traceback": [
          "       sc.parallelize(0 to 100).sm()",
          "\n                                ^"
        ]
      }
    }