[DRILL-1305] C++ Client. Consume QueryState message from the Drillbit

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.4.0
• Fix Version/s: 0.6.0
• Component/s: Client - C++
• Assignee: Xiaomeng Huang
• Reporter: Xiaomeng Huang
• Created: 15/Aug/14 03:27
• Updated: 22/Oct/14 05:26
• Resolved: 22/Oct/14 05:26

Description

Drillbit may send a query state message with empty record batch. For example, Drillbit will send a COMPLETED message to the client after a query is completed. The C++ client ignored the message for now. We should consume the message and send an ack message back to the server.

The query state could be:

// protocol/src/main/protobuf/UserBitShared.proto
enum QueryState {
	  PENDING = 0;
	  RUNNING = 1;
	  COMPLETED = 2;
	  CANCELED = 3;
	  FAILED = 4;
	  UNKNOWN_QUERY = 5;
	}

Issue Links

• depends upon: DRILL-1511 C++ Client. Fix compiling issues in DRILL-1297 patch on clang
• is depended upon by: DRILL-1498 Drill Client to handle handshake messages in handleRead and to ignore spurious results