How to monitor DNAC upgrade logs in real time?

[mattw]

Hi all,

I'm currently in the middle of upgrading a DNAC cluster from 1.3.3.9 to 2.1.2.7 (interim step towards 2.2.2.6).

No issues so far but I'd love to be able to monitor the upgrade logs in real time to see what it's doing.

I know I can sit on the DNAC GUI maintenance page and see each event one at a time but I'd like to see a history of the upgrade steps. This must exist somewhere.

For example on a Firepower you would do a "tail -f /var/log/sf/xxxx/xxxx" to see what it's been up to.

Any equivalent in DNAC?

Thanks in advance,

Matt.

[rasmus.elmholt · Accepted solution]

Hi Matt,

Please see this document for what logs to collect:

https://www.cisco.com/c/en/us/support/docs/cloud-systems-management/dna-center/215683-quick-start-guide-on-what-logs-to-collec.html#anc6

If you want to follow the log in realtime please use:

magctl service logs -r -f system-updater
-r: Raw log format
-f: Follow log in realtime