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moby--moby/daemon/logger/logger_error.go

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package logger
import (
"github.com/sirupsen/logrus"
"golang.org/x/time/rate"
)
// Rates based on journald defaults of 10,000 messages in 30s.
// reference: https://www.freedesktop.org/software/systemd/man/journald.conf.html#RateLimitIntervalSec=
var logErrorLimiter = rate.NewLimiter(333, 333)
// logDriverError logs errors produced by log drivers to the daemon logs. It also increments the logWritesFailedCount
// metric.
// Logging to the daemon logs is limited to 333 operations per second at most. If this limit is exceeded, the
// logWritesFailedCount is still counted, but logging to the daemon logs is omitted in order to prevent disk saturation.
func logDriverError(loggerName, msgLine string, logErr error) {
logWritesFailedCount.Inc(1)
if logErrorLimiter.Allow() {
logrus.WithError(logErr).
WithField("driver", loggerName).
WithField("message", msgLine).
Errorf("Error writing log message")
}
}