tree 71df973466f708f08c834d4b8c3acaf512a22711
parent 1b9e2c1cb4f86c51153a19facd830fa0c5c3db25
author Charles Chan <rascov@gmail.com> 1543325613 +0800
committer Charles Chan <charles@opennetworking.org> 1545172158 +0000

Address StackOverflow by offloading cache listener to a separate thread

In addition,
- Address Thomas' comment in gerrit #20442
- Clean up redundant code

Change-Id: Iafb20895d3b338431c7faf9b810b6a6f6b055d92