tree cfdf900cfd6792d9b5802da31abc3a6546684675
parent df29dc7117cb7fcb143874aef88078c34b0b2be4
author pierventre <pier@opennetworking.org> 1625863337 +0200
committer Pier Luigi Ventre <pier@opennetworking.org> 1627923431 +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