tree db6d9e5c73b1be22596494a9819b054a91fd17f5
parent 10c9cc418562f2deece03edc942eac2d0a22805d
author pierventre <pier@opennetworking.org> 1625863337 +0200
committer Pier Luigi Ventre <pier@opennetworking.org> 1627923447 +0000

[SDFAB-20] Prevent listeners ejection and the stop of the group polling

Offload listeners processing to external executors to prevent
the listener ejection due to time consuming processing

In future, we may want to extend the same fix to the
HostManager and NetworkConfigHostProvider

Additionally, avoid the propagation of the exceptions in GroupDriverProvider
which leads to the cancellation of the peridioc poll task

Change-Id: I8ea4ec9fda1ccc48bbd3855fd443ee8760cbbb60