Finalize fast-reboot in warmboot finalizer #14238
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vaibhavhd
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Mar 14, 2023
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Please also rename the PR to reflect that this is also a submodule advance PR. |
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liat-grozovik
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- Why I did it To solve an issue with upgrade with fast-reboot including FW upgrade which has been introduced since moving to fast-reboot over warm-reboot infrastructure. As well, this introduces fast-reboot finalizing logic to determine fast-reboot is done. - How I did it Added logic to finalize-warmboot script to handle fast-reboot as well, this makes sense as using fast-reboot over warm-reboot this script will be invoked. The script will clear fast-reboot entry from state-db instead of previous implementation that relied on timer. The timer could expire in some scenarios between fast-reboot finished causing fallback to cold-reboot and possible crashes. As well this PR updates all services/scripts reading fast-reboot state-db entry to look for the updated value representing fast-reboot is active. - How to verify it Run fast-reboot and check that fast-reboot entry exists in state-db right after startup and being cleared as warm-reboot is finalized and not due to a timer.
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Cherry-pick PR to 202211: #14608 |
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This PR should come along with sonic-utilities PRs (sonic-net/sonic-utilities#2621 sonic-net/sonic-utilities#2734, already merged) removing the timer usage from fast-reboot script, and as well with advancing sonic-sairedis pointer to point merged sonic-net/sonic-sairedis#1213.
This should be merged alongside with submodule update PR for sonic-utilities and sonic-sairedis with the above changes.
It will be followed by:
sonic-net/sonic-swss-common#742
sonic-net/sonic-platform-daemons#335
This set of PRs solves the issue #13251
Why I did it
To solve an issue with upgrade with fast-reboot including FW upgrade which has been introduced since moving to fast-reboot over warm-reboot infrastructure.
As well, this introduces fast-reboot finalizing logic to determine fast-reboot is done.
How I did it
Added logic to finalize-warmboot script to handle fast-reboot as well, this makes sense as using fast-reboot over warm-reboot this script will be invoked. The script will clear fast-reboot entry from state-db instead of previous implementation that relied on timer. The timer could expire in some scenarios between fast-reboot finished causing fallback to cold-reboot and possible crashes.
As well this PR updates all services/scripts reading fast-reboot state-db entry to look for the updated value representing fast-reboot is active.
How to verify it
Run fast-reboot and check that fast-reboot entry exists in state-db right after startup and being cleared as warm-reboot is finalized and not due to a timer.
Which release branch to backport (provide reason below if selected)
Description for the changelog
Ensure to add label/tag for the feature raised. example - PR#2174 under sonic-utilities repo. where, Generic Config and Update feature has been labelled as GCU.
Link to config_db schema for YANG module changes
A picture of a cute animal (not mandatory but encouraged)