[HBASE-16678] MapReduce jobs do not update counters from ScanMetrics

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.3.0, 1.1.7, 1.2.4, 2.0.0
• Hadoop Flags: Reviewed
• Assignee: Enis Soztutar
• Reporter: Enis Soztutar
• Created: 22/Sep/16 01:34
• Updated: 09/Nov/17 01:38
• Resolved: 30/Sep/16 18:32

Description

Was inspecting a perf issue, where we needed the scanner metrics as counters for a MR job. Turns out that the HBase scan counters are no longer working in 1.0+. I think it got broken via HBASE-13030.

These are the counters:

	HBase Counters
		BYTES_IN_REMOTE_RESULTS=0
		BYTES_IN_RESULTS=280
		MILLIS_BETWEEN_NEXTS=11
		NOT_SERVING_REGION_EXCEPTION=0
		NUM_SCANNER_RESTARTS=0
		NUM_SCAN_RESULTS_STALE=0
		REGIONS_SCANNED=1
		REMOTE_RPC_CALLS=0
		REMOTE_RPC_RETRIES=0
		RPC_CALLS=3
		RPC_RETRIES=0