I have a server with dual Intel Xeon E5-2667 CPU (6 cores+HT) running OEL(RHEL) 6.4
For some reason snmp query to it shows cores from only 1 CPU.
Here's output sensors command.
[root@host log]# sensors
coretemp-isa-0000
Adapter: ISA adapter
Physical id 0: +56.0°C (high = +96.0°C, crit = +102.0°C)
Core 0: +55.0°C (high = +96.0°C, crit = +102.0°C)
Core 1: +50.0°C (high = +96.0°C, crit = +102.0°C)
Core 2: +52.0°C (high = +96.0°C, crit = +102.0°C)
Core 3: +55.0°C (high = +96.0°C, crit = +102.0°C)
Core 4: +52.0°C (high = +96.0°C, crit = +102.0°C)
Core 5: +56.0°C (high = +96.0°C, crit = +102.0°C)
coretemp-isa-0001
Adapter: ISA adapter
Physical id 1: +43.0°C (high = +96.0°C, crit = +102.0°C)
Core 0: +43.0°C (high = +96.0°C, crit = +102.0°C)
Core 1: +41.0°C (high = +96.0°C, crit = +102.0°C)
Core 2: +42.0°C (high = +96.0°C, crit = +102.0°C)
Core 3: +41.0°C (high = +96.0°C, crit = +102.0°C)
Core 4: +40.0°C (high = +96.0°C, crit = +102.0°C)
Core 5: +41.0°C (high = +96.0°C, crit = +102.0°C)
my /etc/snmp/snmpd.conf has the following line to allow full access:
view all included .1 80
Yet here's what happens when I snmpwalk this server:
[root@host log]# snmpwalk -c public -v 2c localhost sensor
LM-SENSORS-MIB::lmTempSensorsIndex.1 = INTEGER: 1
LM-SENSORS-MIB::lmTempSensorsIndex.2 = INTEGER: 2
LM-SENSORS-MIB::lmTempSensorsIndex.3 = INTEGER: 3
LM-SENSORS-MIB::lmTempSensorsIndex.4 = INTEGER: 4
LM-SENSORS-MIB::lmTempSensorsIndex.5 = INTEGER: 5
LM-SENSORS-MIB::lmTempSensorsIndex.6 = INTEGER: 6
LM-SENSORS-MIB::lmTempSensorsIndex.7 = INTEGER: 7
LM-SENSORS-MIB::lmTempSensorsIndex.8 = INTEGER: 8
LM-SENSORS-MIB::lmTempSensorsDevice.1 = STRING: Physical id 0
LM-SENSORS-MIB::lmTempSensorsDevice.2 = STRING: Core 0
LM-SENSORS-MIB::lmTempSensorsDevice.3 = STRING: Core 1
LM-SENSORS-MIB::lmTempSensorsDevice.4 = STRING: Core 2
LM-SENSORS-MIB::lmTempSensorsDevice.5 = STRING: Core 3
LM-SENSORS-MIB::lmTempSensorsDevice.6 = STRING: Core 4
LM-SENSORS-MIB::lmTempSensorsDevice.7 = STRING: Core 5
LM-SENSORS-MIB::lmTempSensorsDevice.8 = STRING: Physical id 1
LM-SENSORS-MIB::lmTempSensorsValue.1 = Gauge32: 60000
LM-SENSORS-MIB::lmTempSensorsValue.2 = Gauge32: 44000
LM-SENSORS-MIB::lmTempSensorsValue.3 = Gauge32: 42000
LM-SENSORS-MIB::lmTempSensorsValue.4 = Gauge32: 42000
LM-SENSORS-MIB::lmTempSensorsValue.5 = Gauge32: 42000
LM-SENSORS-MIB::lmTempSensorsValue.6 = Gauge32: 41000
LM-SENSORS-MIB::lmTempSensorsValue.7 = Gauge32: 41000
LM-SENSORS-MIB::lmTempSensorsValue.8 = Gauge32: 44000
How can I make snmp report temperature for cores on all cpus?
Best Answer
Something seems to be off, because you have this line:
but nothing afterwards, as if there were only 8 slots for sensors. There is a bug report with dual Intel Xeon E5-2670 (8 cores), where the last Device line is this:
So there are 10 slots there, again only one processor.
There are some Ubuntu instructions successfully showing 20 slots (no "Physical id" lines there) , although with a completely different processor and using the miscSensors category. They say there that "according to the lm-sensors installation page, Net-SNMP 5.5 or higher is required", which is the version on RedHat 6.4.
In any case you may try upgrading Net-SNMP and see if that solves the issue. But maybe it really is a problem with the MIB and that particular family of processors, in which case that that bug needs to be solved.