tree a5a80adab81265b39f928e67ac4639f3e9c42a5b
parent 199fd8694c5c116394df6dca8980467dbde66471
author khenaidoo <knursimu@ciena.com> 1553479644 -0400
committer khenaidoo <knursimu@ciena.com> 1553479644 -0400

[VOL-1512] Set device ownership

This commit consists of the following:
1) Set device ownership per Core in a Core-pair such that only 1
Core actively process a device (i.e. handles all the requests for
that device) while the other Core in the pair passively watch for
updates on that device and will take over in case the owner Core
failed to process the transaction.
2) Cleanup the lock mechanisms to ensure we use a read lock when
needed instead of just a lock.
3) Update logical port additions such that ports are added only when
the device is enabled.
4) Update the port Ids for the logical ports.
5) Update some sarama client configs for performance - this is an
ongoing tune up.
6) Update the adapter request handler in the Core to send back an
ACK immediately to the adapter request instead of processing the
request fully and then sending an ACK.  This reduces the latency
over kafka and therefore reduces the likelihood of timeouts.

Change-Id: I9149bf3ba6fbad38e3a29c76ea8dba2f9f731d29