tr id=PluginConfig-max_peer_cache_size><td><code>max_peer_cache_size</code></td><td><code>int32</code></td><td><p>maximum size of the peer metadata cache.
A long lived proxy that connects with many transient peers can build up a
large cache. To turn off the cache, set this field to a negative value.
DEPRECATED.</p></td><td>No</td></tr><tr id=PluginConfig-stat_prefix><td><code>stat_prefix</code></td><td><code>string</code></td><td><p>prefix to add to stats emitted by the plugin.
DEPRECATED.</p></td><td>No</t