Files
tasks/common/persistence/sql/sqlplugin/mysql/plugin.go
T
022bc2a714 Add sql connection pool metrics (#8071)
## What changed?

Adding sql connection pool metrics from stdlib `Stats`

## Why?

Expose more metrics for config fine tuning

## How did you test it?
- [x] built
- [x] run locally and tested manually
- [x] covered by existing tests
- [ ] added new unit test(s)
- [ ] added new functional test(s)

---------

Co-authored-by: Roey Berman <[email protected]>
Co-authored-by: Roey Berman <[email protected]>
2025-09-08 17:09:57 -07:00

62 lines
1.7 KiB
Go

package mysql
import (
"github.com/jmoiron/sqlx"
"go.temporal.io/server/common/clock"
"go.temporal.io/server/common/config"
"go.temporal.io/server/common/log"
"go.temporal.io/server/common/metrics"
"go.temporal.io/server/common/persistence/sql"
"go.temporal.io/server/common/persistence/sql/sqlplugin"
"go.temporal.io/server/common/persistence/sql/sqlplugin/mysql/session"
"go.temporal.io/server/common/resolver"
)
const (
// PluginName is the name of the plugin
PluginName = "mysql8"
)
type plugin struct{}
var _ sqlplugin.Plugin = (*plugin)(nil)
func init() {
sql.RegisterPlugin(PluginName, &plugin{})
}
// CreateDB initialize the db object
func (p *plugin) CreateDB(
dbKind sqlplugin.DbKind,
cfg *config.SQL,
r resolver.ServiceResolver,
logger log.Logger,
metricsHandler metrics.Handler,
) (sqlplugin.GenericDB, error) {
connect := func() (*sqlx.DB, error) {
if cfg.Connect != nil {
return cfg.Connect(cfg)
}
return p.createDBConnection(dbKind, cfg, r)
}
handle := sqlplugin.NewDatabaseHandle(dbKind, connect, isConnNeedsRefreshError, logger, metricsHandler, clock.NewRealTimeSource())
db := newDB(dbKind, cfg.DatabaseName, handle, nil)
return db, nil
}
// CreateDBConnection creates a returns a reference to a logical connection to the
// underlying SQL database. The returned object is to tied to a single
// SQL database and the object can be used to perform CRUD operations on
// the tables in the database
func (p *plugin) createDBConnection(
dbKind sqlplugin.DbKind,
cfg *config.SQL,
resolver resolver.ServiceResolver,
) (*sqlx.DB, error) {
mysqlSession, err := session.NewSession(dbKind, cfg, resolver)
if err != nil {
return nil, err
}
return mysqlSession.DB, nil
}