Remove exception throwing when initializing missing loopback interface #90
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lolyu
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Jun 24, 2022
yxieca
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Jun 24, 2022
#90) ### Description of PR Summary: Fixes # (issue) This PR is to avoid throwing exception when linkmgrd initializing without CONFIG DB loopback interface entry. sign-off: Jing Zhang zhangjing@microsoft.com ### Type of change - [x] Bug fix ### Approach #### What is the motivation for this PR? Avoid unnecessary process exits. #### How did you do it? Log a fatal message instead of exiting the process. #### How did you verify/test it? Tested on dual testbeds. Met all expected behavior below: 1. Remove loopback interface live (when linkmgrd is running): No linkmgrd crash. `show mux status` reported `unhealthy` as no IP interface to receive heartbeat packets. 2. Start mux service when missing loopback interface: No linkmgrd crash. Saw fatal log below in syslog. `show mux status` report `unhealthy`. 3. Add back loopback interface CONFIG DB entry live: `show mux status` reported `healthy`.
qiluo-msft
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Jul 5, 2022
#90) ### Description of PR Summary: Fixes # (issue) This PR is to avoid throwing exception when linkmgrd initializing without CONFIG DB loopback interface entry. sign-off: Jing Zhang zhangjing@microsoft.com ### Type of change - [x] Bug fix ### Approach #### What is the motivation for this PR? Avoid unnecessary process exits. #### How did you do it? Log a fatal message instead of exiting the process. #### How did you verify/test it? Tested on dual testbeds. Met all expected behavior below: 1. Remove loopback interface live (when linkmgrd is running): No linkmgrd crash. `show mux status` reported `unhealthy` as no IP interface to receive heartbeat packets. 2. Start mux service when missing loopback interface: No linkmgrd crash. Saw fatal log below in syslog. `show mux status` report `unhealthy`. 3. Add back loopback interface CONFIG DB entry live: `show mux status` reported `healthy`.
This was referenced Jul 6, 2022
zjswhhh
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Jul 12, 2022
[master][sonic-linkmgrd] submodule update 58d8aae Longxiang Lyu Sat Jul 2 10:14:50 2022 +0800 Enforce switch after config mux to active (sonic-net/sonic-linkmgrd#95) 600df46 Longxiang Lyu Thu Jun 30 15:09:10 2022 +0800 Add unittest to verify mux toggle active (sonic-net/sonic-linkmgrd#94) 400b1b8 gregshpit Wed Jun 29 21:32:45 2022 +0300 For Sonic cross-compilation build. CC variable is used as gcc compiler. CXX variable is used as g++ compiler. (sonic-net/sonic-linkmgrd#91) a516668 Jing Zhang Tue Jun 28 11:07:23 2022 -0700 Use Vlan MAC as src MAC for link prober by default (sonic-net/sonic-linkmgrd#93) 6b5d739 Longxiang Lyu Tue Jun 28 22:46:12 2022 +0800 Fix inconsistent mux state (sonic-net/sonic-linkmgrd#92) 9265497 Jing Zhang Fri Jun 24 09:10:12 2022 -0700 Remove exception throwing when initializing missing loopback interface (sonic-net/sonic-linkmgrd#90) sign-off: Jing Zhang zhangjing@microsoft.com
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Description of PR
Summary:
Fixes # (issue)
This PR is to avoid throwing exception when linkmgrd initializing without CONFIG DB loopback interface entry.
sign-off: Jing Zhang zhangjing@microsoft.com
Type of change
Approach
What is the motivation for this PR?
Avoid unnecessary process exits.
How did you do it?
Log a fatal message instead of exiting the process.
How did you verify/test it?
Tested on dual testbeds. Met all expected behavior below:
No linkmgrd crash.
show mux statusreportedunhealthyas no IP interface to receive heartbeat packets.No linkmgrd crash. Saw fatal log below in syslog.
show mux statusreportunhealthy.show mux statusreportedhealthy.Any platform specific information?
Documentation