[PHOENIX-5717] Phoenix Global Client Metrics are only increased In QueryServer

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Labels: metrics
• Assignee: Unassigned
• Reporter: junfei liang
• Created: 06/Feb/20 10:26
• Updated: 06/Feb/20 10:26

Description

After PHOENIX-1819  Phoenix Client Metrics are added  After  PHOENIX-3655 PQS Metics is exported to Hadoop-Metrics as Gauge Metrics.

However  these metrics  are increased only and never reset when export to  hadoop metirc system. 

In our online cluster,  QueryServer is deployed as a standalone process，when exposed these metrics to ganglia, we found these metrics is  never decreased.

We may change  org.apache.phoenix.monitoring.GlobalClientMetrics.PhoenixGlobalMetricGauge#getValue  to use average value for metrics system, but it's no enough.

when  talk about  read/write stats,   we also need TPS, RT( including avg, max, min, 99th etc.),  batch size.

 

So  i think we can introduce Histogram Metric to our monitor system，  See patch for Mutation Metrics  a example。

 

has any suggestions？