Package com.mysql.cj.jdbc.ha.ca

Class ClusterAwareTimeMetricsHolder

java.lang.Object

com.mysql.cj.log.BaseMetricsHolder

com.mysql.cj.jdbc.ha.ca.ClusterAwareTimeMetricsHolder

public class ClusterAwareTimeMetricsHolder
extends BaseMetricsHolder

A simple implementation of timing metric. It collects an execution time for particular case/event.

Use registerQueryExecutionTime(long queryTimeMs) to report an execution time.

Field Summary

Fields

Modifier and Type	Field	Description
protected java.lang.String	metricName

Fields inherited from class com.mysql.cj.log.BaseMetricsHolder

HISTOGRAM_BUCKETS, longestQueryTimeMs, maximumNumberTablesAccessed, minimumNumberTablesAccessed, numberOfPreparedExecutes, numberOfPrepares, numberOfQueriesIssued, numberOfResultSetsCreated, numTablesMetricsHistBreakpoints, numTablesMetricsHistCounts, oldHistBreakpoints, oldHistCounts, perfMetricsHistBreakpoints, perfMetricsHistCounts, queryTimeCount, queryTimeMean, queryTimeSum, queryTimeSumSquares, shortestQueryTimeMs, totalQueryTimeMs

Constructor Summary

Constructors

Constructor	Description
ClusterAwareTimeMetricsHolder(java.lang.String metricName)	Initialize a metric holder with a metric name.

Method Summary

Modifier and Type	Method	Description
void	reportMetrics(Log log)	Report collected metric to a provided logger.

Methods inherited from class com.mysql.cj.log.BaseMetricsHolder

checkAbonormallyLongQuery, incrementNumberOfPreparedExecutes, incrementNumberOfPrepares, incrementNumberOfResultSetsCreated, registerQueryExecutionTime, reportNumberOfTablesAccessed, reportQueryTime

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

metricName

protected java.lang.String metricName

Constructor Details

ClusterAwareTimeMetricsHolder

public ClusterAwareTimeMetricsHolder(java.lang.String metricName)

Initialize a metric holder with a metric name.

Parameters:

metricName - Metric name

Method Details

reportMetrics

public void reportMetrics(Log log)

Report collected metric to a provided logger.

Overrides:

reportMetrics in class BaseMetricsHolder

Parameters:

log - A logger to report collected metric.