This repository was archived by the owner on Oct 22, 2019. It is now read-only.
This repository was archived by the owner on Oct 22, 2019. It is now read-only.
Redis::collectHistograms() throws PHP warning: sort() expects parameter 1 to be array, boolean given #92
Description
When no histogram data have been pushed into redis yet, calling Prometheus\Storage\Redis::collectHistograms results in a PHP warning:
warning: sort() expects parameter 1 to be array, boolean given
This is because
$keys = $this->redis->sMembers(self::$prefix . Histogram::TYPE . self::PROMETHEUS_METRIC_KEYS_SUFFIX);
returns false.