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database/sql: add getters for connection pool configuration settings in DB struct #44372

tomaszjonak opened this issue Feb 18, 2021 · 1 comment


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@tomaszjonak tomaszjonak commented Feb 18, 2021

What version of Go are you using (go version)?

$ go version
go version go1.15.1 linux/amd64

Does this issue reproduce with the latest release?

This is a interface extension proposal for database/sql.DB struct.

What do you want to do?

I want to inspect state of DB instance configuration set via

    func (db *DB) SetConnMaxIdleTime(d time.Duration)
    func (db *DB) SetConnMaxLifetime(d time.Duration)
    func (db *DB) SetMaxIdleConns(n int)
    func (db *DB) SetMaxOpenConns(n int)

What did you expect to see?

Methods returning current values, i.e

    func (db *DB) ConnMaxIdleTime() time.Duration
    func (db *DB) ConnMaxLifetime() time.Duration
    func (db *DB) MaxIdleConns() int
    func (db *DB) MaxOpenConns() int

or additional fields in DBStats struct, currently there's just MaxOpenConnections.

@tomaszjonak tomaszjonak changed the title Add getters for database/sql.DB connection pool configuration settings database/sql: add getters for connection pool configuration settings in DB struct Feb 18, 2021
@toothrot toothrot added the NeedsInvestigation label Feb 18, 2021
@toothrot toothrot added this to the Backlog milestone Feb 18, 2021
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@toothrot toothrot commented Feb 18, 2021

/cc @kardianos

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