[service dependent] describe non-warm-reboot dependency outside systemd #3311
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…mctl When dependency was described with systemctl, it will kick in all the time, including under warm reboot/restart scenarios. This is not what we always want. For components that are capable of warm reboot/start, they need to describe dependency in service files. Signed-off-by: Ying Xie <ying.xie@microsoft.com>
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i think the reason is that in the warm reboot mode, we need to first stop swss and then do the SAI pre-shutdown, finally, we stop the team service to give us full 90 seconds for coming up. |
lguohan
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Adding require swss will cause teamd to be killed by systemctl when swss stops. This is not what we want in warm reboot. Signed-off-by: Ying Xie <ying.xie@microsoft.com>
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…md (#3311) * [service dependent] describe non-warm-reboot dependency outside systemctl When dependency was described with systemctl, it will kick in all the time, including under warm reboot/restart scenarios. This is not what we always want. For components that are capable of warm reboot/start, they need to describe dependency in service files. Signed-off-by: Ying Xie <ying.xie@microsoft.com> * [service] teamd service should not require swss service Adding require swss will cause teamd to be killed by systemctl when swss stops. This is not what we want in warm reboot. Signed-off-by: Ying Xie <ying.xie@microsoft.com> * refactoring code * rename functions to match other functions in the file
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- What I did
When dependency was described with systemctl, it will kick in all the time,
including under warm reboot/restart scenarios. This is not what we always
want. For components that are capable of warm reboot/start, they need to
describe dependency in service files.
Signed-off-by: Ying Xie ying.xie@microsoft.com
- How to verify it
Without this change, when warm reboot test is executed, randomly the LAGs would flap. When running continuous warm reboot test, the LAG up time on the peers will eventually show this problem.
With the change in place, the LAG reset is not seen.