cl-support File
nv show system tech-support auto-generation
Shows if automatic cl-support file generation is active or inactive, and the reason for deactivation.
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.
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.
Version History
Introduced in Cumulus Linux 5.16.0
Example
cumulus@switch:~$ nv show system tech-support auto-generation
nv show system tech-support auto-generation
operational applied
-------------- ----------- -------
state enabled enabled
burst-duration 7200 7200
burst-size 5 5
Recovery Steps
=================
No Data
nv show system tech-support auto-generation recovery-steps
Shows the recovery steps if automatic cl-support file generation is deactivated.
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.
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.
Version History
Introduced in Cumulus Linux 5.16.0
Example
cumulus@switch:~$ nv show system tech-support auto-generation recovery-steps
No Data
nv show system tech-support files
Shows the cl-support files on the switch. The cl-support script generates a compressed archive file of useful information for troubleshooting. The system either creates the file automatically or you can create the file manually.
Version History
Introduced in Cumulus Linux 5.10.0
Example
cumulus@switch:~$ nv show system tech-support files
File name File path
------------------------------------- --------------------------------------------------
cl_support_leaf01_20240725_225811.txz /var/support/cl_support_leaf01_20240725_225811.txz