Memcached custom metrics plugin for mackerel.io agent.
mackerel-plugin-memcached [-host=<host>] [-port=<port>] [-socket=</path/to/unixsocket>] [-tempfile=<tempfile>] [-metric-key-prefix=<custom_prefix>]
[plugin.metrics.memcached]
command = "/path/to/mackerel-plugin-memcached"