…hen updating a check from a fully qualified domain name to an IP address
If a period of 0 is provided, just add this livestream as a feed on the master check. It won't show up in watches, but it acts like a normal watch.
If a check doesn't "do" anything to collect metrics and instead passively allows metrics to arrive, then when you clone the check to a transient copy, the metrics will always be blank. By allowing modules to note that the check acts this way, we can be smarter elsewhere. We should be able to use this to allow transient streaming of things like statsd, collectd and traps.
…t when the given URI is not an absolute path
…ied to esper
… can be reused without esper (passes iep-related test suite still)
…dating for performance reasons.