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supervisord-dependent-startup print out error log when stop daemons #5241

@keboliu

Description

@keboliu

Description

supervisord-dependent-startup print out error logs when stopping daemons:

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
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:10,067 ERRO pool dependent-startup event buffer overflowed, discarding event 38
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:10,069 ERRO pool dependent-startup event buffer overflowed, discarding event 39
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:10,070 ERRO pool dependent-startup event buffer overflowed, discarding event 40
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:10,071 ERRO pool dependent-startup event buffer overflowed, discarding event 41
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:12,076 ERRO pool dependent-startup event buffer overflowed, discarding event 42
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:12,080 ERRO pool dependent-startup event buffer overflowed, discarding event 43
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:12,082 ERRO pool dependent-startup event buffer overflowed, discarding event 44
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:12,086 ERRO pool dependent-startup event buffer overflowed, discarding event 45
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:12,087 ERRO pool dependent-startup event buffer overflowed, discarding event 46
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:12,089 ERRO pool dependent-startup event buffer overflowed, discarding event 47
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:12,090 ERRO pool dependent-startup event buffer overflowed, discarding event 48
Aug 23 22:50:43.789760 sonic-dut INFO swss#supervisord 2020-08-23 22:50:12,092 ERRO pool dependent-startup event buffer overflowed, discarding event 49
Aug 23 22:50:49.953629 sonic-dut INFO pmon#supervisord 2020-08-23 22:50:16,324 ERRO pool dependent-startup event buffer overflowed, discarding event 20
Aug 23 22:50:49.953629 sonic-dut INFO pmon#supervisord 2020-08-23 22:50:16,325 ERRO pool dependent-startup event buffer overflowed, discarding event 21
Aug 23 22:50:49.953629 sonic-dut INFO pmon#supervisord 2020-08-23 22:50:16,329 ERRO pool dependent-startup event buffer overflowed, discarding event 22
Aug 23 22:51:03.811121 sonic-dut INFO swss#supervisord 2020-08-23 22:50:59,630 ERRO pool dependent-startup event buffer overflowed, discarding event 23

Steps to reproduce the issue:

  1. stop some daemons inside swss or pmon will see the error log

Describe the results you received:
expecting no error log print out

Describe the results you expected:
error log seen

Additional information you deem important (e.g. issue happens only occasionally):

**Output of `show version`:**

```
SONiC Software Version: SONiC.201911.177-427382b5
Distribution: Debian 9.13
Kernel: 4.9.0-11-2-amd64
Build commit: 427382b5
Build date: Sat Aug 22 03:16:30 UTC 2020
Built by: johnar@jenkins-worker-8

```

**Attach debug file `sudo generate_dump`:**

syslog.log

```
(paste your output here)
```

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