metrics: change periodic update to synchronous collect. #185
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Signed-off-by: morimoto-cybozu <kenji_morimoto@cybozu.co.jp>
Signed-off-by: morimoto-cybozu <kenji_morimoto@cybozu.co.jp>
Signed-off-by: morimoto-cybozu <kenji_morimoto@cybozu.co.jp>
Signed-off-by: morimoto-cybozu <kenji_morimoto@cybozu.co.jp>
morimoto-cybozu
changed the title
Signed-off-by: morimoto-cybozu <kenji_morimoto@cybozu.co.jp>
ymmt2005
requested changes
Feb 12, 2020
metrics/collector.go
Outdated
Comment on lines
91
to
112
| env := well.NewEnvironment(ctx) | ||
| for key, metric := range c.metrics { | ||
| key, metric := key, metric | ||
| env.Go(func(ctx context.Context) error { | ||
| err := metric.updater(ctx, c.model) | ||
| if err != nil { | ||
| log.Warn("unable to update metrics", map[string]interface{}{ | ||
| "name": key, | ||
| log.FnError: err, | ||
| }) | ||
| // return nil not to disturb collection of other metrics | ||
| return nil | ||
| } | ||
|
|
||
| for _, col := range metric.collectors { | ||
| col.Collect(ch) | ||
| } | ||
| return nil | ||
| }) | ||
| } | ||
| env.Stop() | ||
| env.Wait() |
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well.Environment might be an overkill.
sync.WaitGroup is just enough because there are no error handling code.
Signed-off-by: morimoto-cybozu <kenji_morimoto@cybozu.co.jp>
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Signed-off-by: morimoto-cybozu kenji_morimoto@cybozu.co.jp