[Linux-HA] failed authentication poping up in the logs from time to time.

Dejan Muhamedagic dejanmm at fastmail.fm
Tue Oct 2 07:10:24 MDT 2007


Hi,

On Tue, Oct 02, 2007 at 02:27:07PM +0200, Robert Lindgren wrote:
> > > Is this something something I should worry about?
> >
> >
> > doesn't look good, but i'm no expert at that part of heartbeat
> > i'd log bug...
> 
> Problem is only present with having a serial cable as extra heartbeat.
> Cable is verified to be proper nullmodem cable.
> 
> Still I get:
> Oct 02 14:13:41 noemic2 heartbeat: [27996]: info :  Link noemic1:/dev/ttyS0 up.
> Oct 02 14:15:55 noemic2 heartbeat: [28008]: WARN :  glib: TTY write
> timeout on [/dev/ttyS0] (no connection or bad cable? [see
> documentation])
> Oct 02 14:15:55 noemic2 heartbeat: [28008]: info :  glib: See
> http://linux-ha.org/FAQ#TTYtimeout for details
> 
> Strange.

There was a similar problem reported yesterday. It turned out
that the serial interface bandwidth is not up to the CIB size at
times. This occurs only at times of cluster flux when bigger
messages are transferred. The problem was solved by upping the
baud to 115200.

Thanks,

Dejan

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