[Bro-Dev] #1000: Merge sample sumstat plugin

[Bro Tracker]

#1000: Merge sample sumstat plugin
---------------------------+------------------------
 Reporter:  amannb         |      Owner:
     Type:  Merge Request  |     Status:  new
 Priority:  Low            |  Milestone:  Bro2.2
Component:  Bro            |    Version:  git/master
 Keywords:                 |
---------------------------+------------------------
 topic/bernhard/metrics-samples contains a plugin for the sumstats
 framework which
 implements reservoir sampling, which gives uniformly distributed samples
 over the
 input stream.

 The current sample plugin which keeps a list of the last elements is
 renamed to last.

 I hope that I got the algorithm -- especially the merging -- right - but
 with probabilistic
 algorithms is is a little bit difficult to test. If someone could take a
 look at the observation
 and merge hooks and see if they agree with what I am doing I would be very
 grateful.

-- 
Ticket URL: <http://tracker.bro.org/bro/ticket/1000>
Bro Tracker <http://tracker.bro.org/bro>
Bro Issue Tracker