When stopping the swss, pmon or bgp containers, log messages like the following can be seen:
```
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:10,061 ERRO pool dependent-startup event buffer overflowed, discarding event 34
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:10,063 ERRO pool dependent-startup event buffer overflowed, discarding event 35
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:10,064 ERRO pool dependent-startup event buffer overflowed, discarding event 36
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:10,066 ERRO pool dependent-startup event buffer overflowed, discarding event 37
```
This is due to the number of programs in the container managed by supervisor, all generating events at the same time. The default event queue buffer size in supervisor is 10. This patch increases that value in all containers in order to eliminate these errors. As more programs are added to the containers, we may need to further adjust these values. I increased all buffer sizes to 25 except for containers with more programs or templated supervisor.conf files which allow for a variable number of programs. In these cases I increased the buffer size to 50. One final exception is the swss container, where the buffer fills up to ~50, so I increased this buffer to 100.
Resolves https://github.com/Azure/sonic-buildimage/issues/5241
* Changes for LLDP for Multi NPU Platoforms:-
a) Enable LLDP for Host namespace for Management Port
b) Make sure Management IP is avaliable in per asic namespace
needed for LLDP Chassis configuration
c) Make sure chassis mac-address is correct in per asic namespace
d) Do not run lldp on eth0 of per asic namespace and avoid chassis
configuration for same
e) Use Linux hostname instead from Device Metadata for lldp chassis
configuration since in multi-npu platforms device metadata hostname
will be differnt
Signed-off-by: Abhishek Dosi <abdosi@microsoft.com>
* Address Review Comment with following changes:
a) Use Device Metadata hostname even in per namespace conatiner.
updated minigraph parsing for same to have hostname as system
hostname and add new key for asic name
b) Minigraph changes to have MGMT_INTERFACE Key in per asic/namespace
config also as needed for LLDP for setting chassis management IP.
Signed-off-by: Abhishek Dosi <abdosi@microsoft.com>
* Address Review Comments
