metrics

var (
	QueryTotalCountOk  []prometheus.Counter
	QueryTotalCountErr []prometheus.Counter

	DisconnectNormal            prometheus.Counter
	DisconnectByClientWithError prometheus.Counter
	DisconnectErrorUndetermined prometheus.Counter

	ConnIdleDurationHistogramNotInTxn prometheus.Observer
	ConnIdleDurationHistogramInTxn    prometheus.Observer

	AffectedRowsCounterInsert  prometheus.Counter
	AffectedRowsCounterUpdate  prometheus.Counter
	AffectedRowsCounterDelete  prometheus.Counter
	AffectedRowsCounterReplace prometheus.Counter

	ReadPacketBytes  prometheus.Counter
	WritePacketBytes prometheus.Counter
)