Apache Ambari Operations
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Druid - Query

Metrics to see status of Druid queries.

RowMetrics

Description

Query Time Metrics

Broker Query Time

Average Time taken by Druid Broker node to process queries

Historical Query Time

Average time taken by Druid historical nodes to process queries

Realtime Query Time

Average time taken by Druid real time nodes to process queries

SEGMENT SCAN METRICS

Historical Segment Scan Time

Average time taken by Druid historical nodes to scan individual segments

Realtime Segment Scan Time

Average time taken by Druid real time nodes to scan individual segments

Historical Query Wait Time

Average time spent waiting for a segment to be scanned on historical node

Realtime Query Wait Time

Average time spent waiting for a segment to be scanned on real time node

Pending Historical Segment Scans

Average Number of pending segment scans on historical nodes

Pending Realtime Segment Scans

Average Number of pending segment scans on real time nodes