INNER CODE UNIT · Python

save_sample

DataDog/dd-agent · checks/__init__.py:151

    def save_sample(self, metric, value, timestamp=None, tags=None, hostname=None, device_name=None):
        """Save a simple sample, evict old values if needed
        """
        from util import cast_metric_val

        if timestamp is None:
            timestamp = time.time()
        if metric not in self._sample_store:
            raise CheckException("Saving a sample for an undefined metric: %s" % metric)
        try:
            value = cast_metric_val(value)
        except ValueError as ve:
            raise NaN(ve)

        # Sort and validate tags
        if tags is not None:
            if type(tags) not in [type([]), type(())]:
                raise CheckException("Tags must be a list or tuple of strings")

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