The graphite service will attempt to create the retention policy and use
it. If the retention policy doesn't exist, it will be created with the
default options.
Fixes#5655.
With this change, the generic batcher used by many inputs can now be
buffered. Testing shows that this performance of the Graphite input by
10-100%, with the biggest improvements at lower numbers of connections.
Provides a little more flexibility in controlling the parsed
metric names for metris like:
servers.localhost.cpu.cpu0.user
Previously, you could only use a single field like "cpu", "user"
or a wildcard to match "cpu.cpu0.user". You can now pull out "cpu"
and "user" and join them together in the metric name using a custom
separator character. By default this is ".".
Jonathan A. Sternberg
Ben Johnson
Philip O'Toole
Jason Wilder
Can ZHANG