+------------------+-------------------------------------------------------------------+------------+------------------+----------+-----------+
| Features         | Gnocchi                                                           | Prometheus | InfluxDB         | OpenTSDB | Graphite  |
+==================+===================================================================+============+==================+==========+===========+
| Metric polling   | No                                                                | Yes        | No               | No       | No        |
+------------------+-------------------------------------------------------------------+------------+------------------+----------+-----------+
| Resource history | Yes                                                               | No         | No               | No       | No        |
+------------------+-------------------------------------------------------------------+------------+------------------+----------+-----------+
| Multi-tenant     | Yes                                                               | No         | No               | No       | No        |
+------------------+-------------------------------------------------------------------+------------+------------------+----------+-----------+
| Query interface  | REST API                                                          | REST API   | HTTP             | TCP      | None      |
+------------------+-------------------------------------------------------------------+------------+------------------+----------+-----------+
| High-available   | Yes                                                               | No         | With *Relay*     | Yes      | No        |
+------------------+-------------------------------------------------------------------+------------+------------------+----------+-----------+
| Scalable         | Yes                                                               | No         | Commercial only  | Yes      | No        |
+------------------+-------------------------------------------------------------------+------------+------------------+----------+-----------+
| Alerting         | No (`roadmap <https://github.com/gnocchixyz/gnocchi/issues/71>`_) | Yes        | With *Kapacitor* | No       | No        |
+------------------+-------------------------------------------------------------------+------------+------------------+----------+-----------+
| Grafana support  | Yes                                                               | Yes        | Yes              | Yes      | Yes       |
+------------------+-------------------------------------------------------------------+------------+------------------+----------+-----------+
| collectd support | Yes                                                               | Yes        | Yes              | Yes      | Yes       |
+------------------+-------------------------------------------------------------------+------------+------------------+----------+-----------+
