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/perf_schema_file_instances_test.go
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@ -37,6 +37,7 @@ func TestScrapePerfFileInstances(t *testing.T) {
t.Fatalf("error opening a stub database connection: %s", err)
}
defer db.Close()
inst := &instance{db: db}
columns := []string{"FILE_NAME", "EVENT_NAME", "COUNT_READ", "COUNT_WRITE", "SUM_NUMBER_OF_BYTES_READ", "SUM_NUMBER_OF_BYTES_WRITE"}
@ -48,7 +49,7 @@ func TestScrapePerfFileInstances(t *testing.T) {
ch := make(chan prometheus.Metric)
go func() {
if err = (ScrapePerfFileInstances{}).Scrape(context.Background(), db, ch, log.NewNopLogger()); err != nil {
if err = (ScrapePerfFileInstances{}).Scrape(context.Background(), inst, ch, log.NewNopLogger()); err != nil {
panic(fmt.Sprintf("error calling function on test: %s", err))
}
close(ch)