[FLINK-12423] Add Timer metric type for flink-metrics module

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Component/s: Runtime / Metrics
• Assignee: Armstrong Nova
• Reporter: Armstrong Nova
• Created: 07/May/19 02:44
• Updated: 06/Nov/20 10:26
• Resolved: 06/Nov/20 10:26

Description

Hi guys, 

    Currently, Flink only support 4 registering metrics, Counters, Gauges, Histograms and Meters.  If we want to measure the time cost metric, for example P75th, P99th, P999th， right now can only use Histograms metric. But Histograms metric not support TimeUnit type (second, millisecond, microsecond, nanosecond). So it's not convenient to collaborate with outside metric system. 

    The Codahale/DropWizard support Time meter, so we can wrap it in Flink. 

    Flink metrics doc https://ci.apache.org/projects/flink/flink-docs-master/monitoring/metrics.html
    Thanks for your time.

Issue Links

• is duplicated by: FLINK-12680 Add timer type to metric system