[multi-asic] Fixed 13137 ERR python3: :- initializeGlobalConfig: SonicDBConfig Global config is already initialized #18609
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…10960) Why I did it Provide fix for comment: https://github.com/Azure/sonic-buildimage/pull/10475/files#r847753187; Move laoding database config to application code instead of portconfig as portconfig is used as a library. How I did it Remove try exception handing from portconfig.py during config_db intialization. Move loading of database config to application that uses portconfig.py. How to verify it unit-test passes. Verified that it does not cause issue during boot up of multi-asic VS image. Verified that config_db generation was successful in multi-asic VS.
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This is a cherry-pick fix from master. Added 2 more places with check where load_sonic_global_db_config() is called without check. |
wumiaont
changed the title
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@qiluo-msft Please review. Thx |
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The code lgtm. However you should fix the master completely and backport whatever commits to 202205. Not to submit PR to 202205 directly. |
OK. I will create PR against master soon. |
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@qiluo-msft @rlhui Created PR against master #18691. Please review. Unfortunately, that PR cannot be cherry-pick to 202205 as it's missing another important fix with original PR 10960 (change in portconfig.py). So best way is to let this in 202205 and have 18691 to handle fix for master. |
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MSFT ADO: 25516271 |
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@rlhui , could you pl help merge this change? Thanks! |
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@deepak-singhal0408 why is the label requested for 202305 is applied here but not from the master PR (#10960) instead? This is not usually how it works... |
sounds good.. actually earlier there was only one PR in 202205, and we were under the impression that nothing is needed in master.. thats why I added the label here.. but later on, we made a change for this in master as well.. so yes, ideally the label should be put on master branch PR.. thanks for fixing this. |
Issue:
#13137
If run "show interfaces status" we often see error in syslog "SonicDBConfig Global config is already initialized".
Analysis:
During investigation it is found the swsscommon.load_sonic_global_db_config() has been triggered multiple times. Especially in a multi Asic scenario.
CLI triggers "intfutil -c status" with a separate process. Within the process it will trigger IntfStatus init --> MultiAsic() init-->load_db_config()-->load_sonic_global_db_config(). This time initializeGlobalConfig() will run to the end as m_global_init flag is false.
CLI will also run get_port_config() --> db_connect_configdb() --> load_sonic_global_db_config() (for different namepaces. In our case is asic0 and asic1). This time m_global_init flag is true which causes error log and return.
Solution:
There was a PR in master already fixed this issue(#10960). Cherry-picked this back to 202205. Added checks in 2 other places where load_sonic_global_db_config is called without check in the code and was not covered by PR 10960.
Testing
Run on chassis with 202205 loaded. Loaded the python files modified with this PR into the chassis. Run "show interface status" and will not see the error log. Show command has interface status results correctly.