prometheus/mysqld_exporter
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Add the instance struct to handle connections (#859)

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The intent is to use the instance struct to hold the connection
to the database as well as metadata about the instance:
- version
- flavor (mariadb or mysql)

Change is similar to prometheus-community/postgres_exporter#785

Signed-off-by: Vlad Gusev <vlad.esten@gmail.com>
This commit is contained in:
Vlad Gusev
2024-08-12 16:39:52 +03:00
committed by GitHub
parent dd8afce2a4
commit 31bc75a200
67 changed files with 267 additions and 156 deletions
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3
collector/mysql_user.go
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@ -120,7 +120,8 @@ func (ScrapeUser) Version() float64 {
}
// Scrape collects data from database connection and sends it over channel as prometheus metric.
func (ScrapeUser) Scrape(ctx context.Context, db *sql.DB, ch chan<- prometheus.Metric, logger log.Logger) error {
func (ScrapeUser) Scrape(ctx context.Context, instance *instance, ch chan<- prometheus.Metric, logger log.Logger) error {
db := instance.getDB()
var (
userRows *sql.Rows
err error