every minute: "I/O loop cycle took .... ms for 2 events"

[Ondrej Zajicek]

On Sat, Sep 28, 2019 at 02:12:00PM +0000, Christoph wrote:
> Hello,
> 
> (please keep me in CC the mailing list issues are still not solved)
> 
> we get the following WARN log entry exactly once a minute:
> 
> I/O loop cycle took 6343 ms for 2 events
> 
> Is this something to worry about?
> Is this related to hard drive I/O or some other kind of I/O?

Hello

This means there are events that take 6 s, possibly postponing other
events. May cause problems if you would run some protocols configured
with tight timers (e.g. OSPF set to 5 s dead interval).

This is probably kernel table sync. Do you export full BGP to
kernel? Is this on BSD?

-- 
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
"To err is human -- to blame it on a computer is even more so."