Rudy Send a SIGUSR1 to each individual daemon to have the log files auto-rotated from FRR's perspective. donald On Mon, May 11, 2020 at 7:10 PM Rudy Rucker <rudy@monkeybrains.net> wrote:

#crontab, ugly hack to reset zebra log file handle (add line to newsyslog.conf)

@daily /usr/local/bin/vtysh -d zebra -c 'conf term' -c "`grep ^log /usr/local/etc/frr/zebra.conf`"

On 5/5/20 2:41 PM, Rudy Rucker wrote:

...

Hi,

I zebra.log gets big. I set up rotation:

#grep zeb /etc/newsyslog.conf /var/log/frr/zebra.log frr:network 644 5 5000 * N

but zebra keeps keeps the file handle open and continues to write to the rotated log - zebra.0

[1] is there a signal I can send to zebra (and other daemons) without stopping routing? [2] feature request: have daemons check if inode file name has changed and automatically close/open handle on change.

PS: zebra.0 is full of mostly this crud:

2020/05/05 14:38:41 ZEBRA: [EC 100663303] kernel_rtm: 2600:1419:e::/48: rtm_write() unexpectedly returned -4 for command RTM_DELETE 2020/05/05 14:38:41 ZEBRA: [EC 100663303] kernel_rtm: 2804:2e40::/32: rtm_write() unexpectedly returned -4 for command RTM_DELETE 2020/05/05 14:38:41 ZEBRA: [EC 100663303] kernel_rtm: 2804:1768::/33: rtm_write() unexpectedly returned -4 for command RTM_DELETE 2020/05/05 14:38:43 ZEBRA: [EC 100663303] kernel_rtm: 2a0b:21c0:4000::/36: rtm_write() unexpectedly returned -4 for command RTM_DELETE 2020/05/05 14:38:47 ZEBRA: [EC 100663303] kernel_rtm: 2a0b:21c0:4000::/36: rtm_write() unexpectedly returned -4 for command RTM_DELETE

running 7.2.1. I couldn't figure out log filter to get rid of RTM_DELETEs. Advice?

# zebra.conf: log file /var/log/frr/zebra.log errors

Thanks,

Rudy

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On 5/12/20 11:00 AM, Chriztoffer Hansen wrote:

Donald,

On Tue, 12 May 2020 at 14:21, Donald Sharp <sharpd@cumulusnetworks.com> wrote:

...

Send a SIGUSR1 to each individual daemon to have the log files auto-rotated from FRR's perspective. Cool, was not aware of that knob existing. Thank you for the hint.

https://www.google.com/search?q=SIGUSR1+site%3Adocs.frrouting.org https://readthedocs.org/projects/frrouting/downloads/pdf/latest/

Hmm, SIGUSR1 only documentated under eigrp, pim, rip daemons. Could possible use a dedicated section within the documentation?

Cheers, Chriztoffer

Thanks!  Like apache, should have guessed.  I was hesitant as I don't want to send a signal and accidentally clear all routes or anything like that.  Cronjob updated!  New fancy oneline cronjob: @daily killall -USR1 zebra ospfd bgpd ospf6d Rudy