This pull request adds recovery to the messaging.Topic when opening. If
any partial messages are found then the file is truncated at that point
and started from there. This can occur when ungracefully shutting down
a server. It can leave half written messages at the end of segments.
This sends data node urls via the broker heartbeat from each data
node. The urls are tracked on the broker to support simpler
cluster setup as well as distributed queries.
* Update the infludb broker to not need a server so that it'll work on non-data node servers
* Update messaging broker to keep track of connect urls for replicas
This commit refactors the raft package to more loosely couple the individual parts. The clock is now broken into
an interface that signals individual actions in the log. The transport has been mocked to allow more control over
the log tests. The handler's log has been mocked to separate its testing from the log itself.
Ben Johnson
Jason Wilder
Paul Dix