[HIVE-18765] SparkClientImpl swallows exception messages from the RemoteDriver

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0
• Component/s: Spark
• Target Version/s: 3.0.0
• Assignee: Sahil Takiar Assign to me
• Reporter: Sahil Takiar
• Created: 22/Feb/18 04:25
• Updated: 23/May/18 02:13
• Resolved: 23/Feb/18 21:05

Description

SparkClientImpl#handle(ChannelHandlerContext, Error) swallows the cause of the error message:

LOG.warn("Error reported from remote driver.", msg.cause);

There should be a '{}' in the message. Without it the msg.cause info gets swallowed.