[Nut-upsuser] Nut 2.0.1, net-snmp-5.1.2p2, APC SUA1000 with AP9606: repeated comm lost/established messages

[George Pontis]

Hello list members,

I am running NUT 2.0.1 on an OpenBSD 3.8 system, using the OpenBSD port for
net-snmp-5.1.2p2. The UPS is connected via an AP9606 Web/SNMP card with
current firmware, and the LAN. All goes well for a long time, usually more
than one month. Then the system starts spitting messages about losing
communications with the UPS. A second message about reconnecting follows
immediately. The messages are sometimes coming at a fast rate, faster than
the 300 seconds specified for NOCOMMWARNTIME in upsmon.conf. A reboot of the
computer running NUT (the only computer running NUT) does not fix it, so I
assume that there is something going on with the UPS or the UPS network
card.

If this is not a known problem, I would be happy to do some guided sleuthing
to track it down. However, I have no clue where to look.

Any pointers would be much appreciated.

George


The system log messages look like this:

Jan  4 10:57:00 z9 upsd[12613]: Data for UPS [ap9606-srv] is stale - check
driver
Jan  4 10:57:02 z9 upsd[12613]: UPS [ap9606-srv] data is no longer stale
Jan  4 10:59:02 z9 upsd[12613]: Data for UPS [ap9606-srv] is stale - check
driver
Jan  4 10:59:02 z9 upsd[12613]: UPS [ap9606-srv] data is no longer stale


The output from upsmon -D (with console messages interspersed) follows

/usr/local/ups/sbin >> ./upsmon -D 
Network UPS Tools upsmon 2.0.1
UPS: ap9606-srv at localhost (slave) (power value 1)
Using power down flag file /etc/killpower

Trying to connect to UPS [ap9606-srv at localhost]
Logged into UPS ap9606-srv at localhost
polling ups: ap9606-srv at localhost
get_var: ap9606-srv at localhost / status
     status: [OL]
    parsing: [OL]: ups_on_line(ap9606-srv at localhost) (first time)

polling ups: ap9606-srv at localhost
get_var: ap9606-srv at localhost / status
     status: [OL]
    parsing: [OL]: ups_on_line(ap9606-srv at localhost) (no change)

polling ups: ap9606-srv at localhost
get_var: ap9606-srv at localhost / status
     status: [OL]
    parsing: [OL]: ups_on_line(ap9606-srv at localhost) (no change)

polling ups: ap9606-srv at localhost
get_var: ap9606-srv at localhost / status
     status: [OL]
    parsing: [OL]: ups_on_line(ap9606-srv at localhost) (no change)

polling ups: ap9606-srv at localhost
get_var: ap9606-srv at localhost / status
     status: [OL]
    parsing: [OL]: ups_on_line(ap9606-srv at localhost) (no change)

polling ups: ap9606-srv at localhost
get_var: ap9606-srv at localhost / status
Poll UPS [ap9606-srv at localhost] failed - Data stale
do_notify: ntype 0x0005 (COMMBAD)
Communications with UPS ap9606-srv at localhost lost
 

Broadcast Message from root at z9.z9.com

        (/dev/ttyp0) at 10:39 ...

 

Communications with UPS ap9606-srv at localhost lost

 

polling ups: ap9606-srv at localhost
get_var: ap9606-srv at localhost / status
     status: [OL]
do_notify: ntype 0x0004 (COMMOK)
Communications with UPS ap9606-srv at localhost established
    parsing: [OL]: ups_on_line(ap9606-srv at localhost) (no change)

 

Broadcast Message from root at z9.z9.com

        (/dev/ttyp0) at 10:40 ...

 

Communications with UPS ap9606-srv at localhost established

 

polling ups: ap9606-srv at localhost
get_var: ap9606-srv at localhost / status
     status: [OL]
    parsing: [OL]: ups_on_line(ap9606-srv at localhost) (no change)

^CSignal 2: exiting
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