cl-support File
The nv unset commands remove the configuration you set with the equivalent nv set commands. This guide only describes an nv unset command if it differs from the nv set command.
nv set system tech-support auto-generation burst-duration
Configures the number of seconds during which failures are counted before automatic cl-support file generation deactivates.
cl-support files can generate in quick succession due to a chain of faults, which burdens system resources and causes system instability. When this occurs, the switch deactivates automatic cl-support file generation and preserves the first cl-support file (which contains relevant diagnostic information) for troubleshooting.
You can reactivate automatic cl-support file generation with the nv action activate system tech-support auto-generation command.
Version History
Introduced in Cumulus Linux 5.16.0
Example
cumulus@switch:~$ nv set system tech-support auto-generation burst-duration 120
nv set system tech-support auto-generation burst-size
Configures the maximum number of failures allowed during the burst duration time before automatic cl-support file generation deactivates.
cl-support files can generate in quick succession due to a chain of faults, which burdens system resources and causes system instability. When this occurs, the switch deactivates automatic cl-support file generation and preserves the first cl-support file (which contains relevant diagnostic information) for troubleshooting.
You can reactivate automatic cl-support file generation with the nv action activate system tech-support auto-generation command.
Version History
Introduced in Cumulus Linux 5.16.0
Example
cumulus@switch:~$ nv set system tech-support auto-generation burst-size 5
nv set system tech-support auto-generation state
Enables and disables automatic cl-support file generation.
The switch generates the cl-support file automatically:
- When there is a core dump file in the
/var/support/coredirectory for any application that Linux distributions support. - When one of the monitored services fails for the first time after you reboot or power cycle the switch.
Version History
Introduced in Cumulus Linux 5.16.0
Example
cumulus@switch:~$ nv set system tech-support auto-generation state disabled