** Description changed:
+ {IMPACT]
+
It has been brought to me the following:
Some hosts have started to cause UNKNOWN return values in Nagios for
checks on their disks. This is because these hosts are no longer
reporting their disks as part of the SNMP table hrStorageTable
(1.3.6.1.2.1.25.2.3.1 ) - only memory devices are being reported. The
affected hosts that I have investigated received updates for SNMP:
- Upgrade package libsnmp-base 5.7.3+dfsg-1.8ubuntu3.1 to
5.7.3+dfsg-1.8ubuntu3.2
- Upgrade package libsnmp30 5.7.3+dfsg-1.8ubuntu3.1 to 5.7.3+dfsg-1.8ubuntu3.2
- Upgrade package snmpd 5.7.3+dfsg-1.8ubuntu3.1 to 5.7.3+dfsg-1.8ubuntu3.2
+ Upgrade package libsnmp-base 5.7.3+dfsg-1.8ubuntu3.1 to
5.7.3+dfsg-1.8ubuntu3.2
+ Upgrade package libsnmp30 5.7.3+dfsg-1.8ubuntu3.1 to 5.7.3+dfsg-1.8ubuntu3.2
+ Upgrade package snmpd 5.7.3+dfsg-1.8ubuntu3.1 to 5.7.3+dfsg-1.8ubuntu3.2
It seems likely that this package update is the cause.
As debug info, you can see the difference between 2 nearly identical
servers, one of which received the SNMP updates, and one which did not.
You can see that the one without the update is returning disks in the
SNMP output:
- # snmpwalk -v2c -cpublic arcprsmt01 1.3.6.1.2.1.25.2.3.1.3
- iso.3.6.1.2.1.25.2.3.1.3.1 = STRING: "Physical memory"
- iso.3.6.1.2.1.25.2.3.1.3.3 = STRING: "Virtual memory"
- iso.3.6.1.2.1.25.2.3.1.3.6 = STRING: "Memory buffers"
- iso.3.6.1.2.1.25.2.3.1.3.7 = STRING: "Cached memory"
- iso.3.6.1.2.1.25.2.3.1.3.8 = STRING: "Shared memory"
- iso.3.6.1.2.1.25.2.3.1.3.10 = STRING: "Swap space"
- iso.3.6.1.2.1.25.2.3.1.3.31 = STRING: "/"
- iso.3.6.1.2.1.25.2.3.1.3.37 = STRING: "/run"
- iso.3.6.1.2.1.25.2.3.1.3.39 = STRING: "/dev/shm"
- iso.3.6.1.2.1.25.2.3.1.3.40 = STRING: "/run/lock"
- iso.3.6.1.2.1.25.2.3.1.3.41 = STRING: "/sys/fs/cgroup"
- iso.3.6.1.2.1.25.2.3.1.3.67 = STRING: "/run/snapd/ns"
- iso.3.6.1.2.1.25.2.3.1.3.70 = STRING:
"/var/lib/docker/containers/3cad3d36991b677c37b08b374a7bfeceddf36a6b6754edaa1ff687b00111a6b8/mounts/shm"
- iso.3.6.1.2.1.25.2.3.1.3.73 = STRING:
"/var/lib/docker/containers/c605c4b76dea65d562ba024212a38e24fb710186c499187b6604478b7ff678e9/mounts/shm"
- iso.3.6.1.2.1.25.2.3.1.3.82 = STRING: "/run/user/2002"
- iso.3.6.1.2.1.25.2.3.1.3.253 = STRING:
"/var/lib/docker/containers/dc74a157fbaaa284e0e5b8ca4afc88769bf625eb796d89a5d26f98a540cabf35/mounts/shm"
- iso.3.6.1.2.1.25.2.3.1.3.256 = STRING:
"/var/lib/docker/containers/6ce6193433f9c1c95cccbfbbe08a3f3385bdbc4f2e3f0baa02d11baf3866dfd2/mounts/shm"
- iso.3.6.1.2.1.25.2.3.1.3.258 = STRING: "/run/user/1000"
+ # snmpwalk -v2c -cpublic arcprsmt01 1.3.6.1.2.1.25.2.3.1.3
+ iso.3.6.1.2.1.25.2.3.1.3.1 = STRING: "Physical memory"
+ iso.3.6.1.2.1.25.2.3.1.3.3 = STRING: "Virtual memory"
+ iso.3.6.1.2.1.25.2.3.1.3.6 = STRING: "Memory buffers"
+ iso.3.6.1.2.1.25.2.3.1.3.7 = STRING: "Cached memory"
+ iso.3.6.1.2.1.25.2.3.1.3.8 = STRING: "Shared memory"
+ iso.3.6.1.2.1.25.2.3.1.3.10 = STRING: "Swap space"
+ iso.3.6.1.2.1.25.2.3.1.3.31 = STRING: "/"
+ iso.3.6.1.2.1.25.2.3.1.3.37 = STRING: "/run"
+ iso.3.6.1.2.1.25.2.3.1.3.39 = STRING: "/dev/shm"
+ iso.3.6.1.2.1.25.2.3.1.3.40 = STRING: "/run/lock"
+ iso.3.6.1.2.1.25.2.3.1.3.41 = STRING: "/sys/fs/cgroup"
+ iso.3.6.1.2.1.25.2.3.1.3.67 = STRING: "/run/snapd/ns"
+ iso.3.6.1.2.1.25.2.3.1.3.70 = STRING:
"/var/lib/docker/containers/3cad3d36991b677c37b08b374a7bfeceddf36a6b6754edaa1ff687b00111a6b8/mounts/shm"
+ iso.3.6.1.2.1.25.2.3.1.3.73 = STRING:
"/var/lib/docker/containers/c605c4b76dea65d562ba024212a38e24fb710186c499187b6604478b7ff678e9/mounts/shm"
+ iso.3.6.1.2.1.25.2.3.1.3.82 = STRING: "/run/user/2002"
+ iso.3.6.1.2.1.25.2.3.1.3.253 = STRING:
"/var/lib/docker/containers/dc74a157fbaaa284e0e5b8ca4afc88769bf625eb796d89a5d26f98a540cabf35/mounts/shm"
+ iso.3.6.1.2.1.25.2.3.1.3.256 = STRING:
"/var/lib/docker/containers/6ce6193433f9c1c95cccbfbbe08a3f3385bdbc4f2e3f0baa02d11baf3866dfd2/mounts/shm"
+ iso.3.6.1.2.1.25.2.3.1.3.258 = STRING: "/run/user/1000"
The other, which received SNMP updates, is returning only memory
devices, such as swap and shmem:
- # snmpwalk -v2c -cpublic arcprsmt02 1.3.6.1.2.1.25.2.3.1.3
- iso.3.6.1.2.1.25.2.3.1.3.1 = STRING: "Physical memory"
- iso.3.6.1.2.1.25.2.3.1.3.3 = STRING: "Virtual memory"
- iso.3.6.1.2.1.25.2.3.1.3.6 = STRING: "Memory buffers"
- iso.3.6.1.2.1.25.2.3.1.3.7 = STRING: "Cached memory"
- iso.3.6.1.2.1.25.2.3.1.3.8 = STRING: "Shared memory"
+ # snmpwalk -v2c -cpublic arcprsmt02 1.3.6.1.2.1.25.2.3.1.3
+ iso.3.6.1.2.1.25.2.3.1.3.1 = STRING: "Physical memory"
+ iso.3.6.1.2.1.25.2.3.1.3.3 = STRING: "Virtual memory"
+ iso.3.6.1.2.1.25.2.3.1.3.6 = STRING: "Memory buffers"
+ iso.3.6.1.2.1.25.2.3.1.3.7 = STRING: "Cached memory"
+ iso.3.6.1.2.1.25.2.3.1.3.8 = STRING: "Shared memory"
iso.3.6.1.2.1.25.2.3.1.3.10 = STRING: "Swap space"
+
+ [Test Case]
+
+ Install snmp snmpd
+ Run snmpwalk:
+ snmpwalk -v2c -cpublic arcprsmt01 1.3.6.1.2.1.25.2.3.1.3
+
+ [Potential Regression]
+ None, the fix has been tested by various impacted users, and feedbacks were
all positives.
+ This fix a regression introduced by : https://bugs.launchpad.net/bugs/1835818
+
+ [Other information]
+
+ Upstream commit:
+
https://github.com/net-snmp/net-snmp/commit/71e487212bd65839e7454df9701524d08cf0d74f
** Description changed:
- {IMPACT]
+ [IMPACT]
It has been brought to me the following:
Some hosts have started to cause UNKNOWN return values in Nagios for
checks on their disks. This is because these hosts are no longer
reporting their disks as part of the SNMP table hrStorageTable
(1.3.6.1.2.1.25.2.3.1 ) - only memory devices are being reported. The
affected hosts that I have investigated received updates for SNMP:
Upgrade package libsnmp-base 5.7.3+dfsg-1.8ubuntu3.1 to
5.7.3+dfsg-1.8ubuntu3.2
Upgrade package libsnmp30 5.7.3+dfsg-1.8ubuntu3.1 to 5.7.3+dfsg-1.8ubuntu3.2
Upgrade package snmpd 5.7.3+dfsg-1.8ubuntu3.1 to 5.7.3+dfsg-1.8ubuntu3.2
It seems likely that this package update is the cause.
As debug info, you can see the difference between 2 nearly identical
servers, one of which received the SNMP updates, and one which did not.
You can see that the one without the update is returning disks in the
SNMP output:
# snmpwalk -v2c -cpublic arcprsmt01 1.3.6.1.2.1.25.2.3.1.3
iso.3.6.1.2.1.25.2.3.1.3.1 = STRING: "Physical memory"
iso.3.6.1.2.1.25.2.3.1.3.3 = STRING: "Virtual memory"
iso.3.6.1.2.1.25.2.3.1.3.6 = STRING: "Memory buffers"
iso.3.6.1.2.1.25.2.3.1.3.7 = STRING: "Cached memory"
iso.3.6.1.2.1.25.2.3.1.3.8 = STRING: "Shared memory"
iso.3.6.1.2.1.25.2.3.1.3.10 = STRING: "Swap space"
iso.3.6.1.2.1.25.2.3.1.3.31 = STRING: "/"
iso.3.6.1.2.1.25.2.3.1.3.37 = STRING: "/run"
iso.3.6.1.2.1.25.2.3.1.3.39 = STRING: "/dev/shm"
iso.3.6.1.2.1.25.2.3.1.3.40 = STRING: "/run/lock"
iso.3.6.1.2.1.25.2.3.1.3.41 = STRING: "/sys/fs/cgroup"
iso.3.6.1.2.1.25.2.3.1.3.67 = STRING: "/run/snapd/ns"
iso.3.6.1.2.1.25.2.3.1.3.70 = STRING:
"/var/lib/docker/containers/3cad3d36991b677c37b08b374a7bfeceddf36a6b6754edaa1ff687b00111a6b8/mounts/shm"
iso.3.6.1.2.1.25.2.3.1.3.73 = STRING:
"/var/lib/docker/containers/c605c4b76dea65d562ba024212a38e24fb710186c499187b6604478b7ff678e9/mounts/shm"
iso.3.6.1.2.1.25.2.3.1.3.82 = STRING: "/run/user/2002"
iso.3.6.1.2.1.25.2.3.1.3.253 = STRING:
"/var/lib/docker/containers/dc74a157fbaaa284e0e5b8ca4afc88769bf625eb796d89a5d26f98a540cabf35/mounts/shm"
iso.3.6.1.2.1.25.2.3.1.3.256 = STRING:
"/var/lib/docker/containers/6ce6193433f9c1c95cccbfbbe08a3f3385bdbc4f2e3f0baa02d11baf3866dfd2/mounts/shm"
iso.3.6.1.2.1.25.2.3.1.3.258 = STRING: "/run/user/1000"
The other, which received SNMP updates, is returning only memory
devices, such as swap and shmem:
# snmpwalk -v2c -cpublic arcprsmt02 1.3.6.1.2.1.25.2.3.1.3
iso.3.6.1.2.1.25.2.3.1.3.1 = STRING: "Physical memory"
iso.3.6.1.2.1.25.2.3.1.3.3 = STRING: "Virtual memory"
iso.3.6.1.2.1.25.2.3.1.3.6 = STRING: "Memory buffers"
iso.3.6.1.2.1.25.2.3.1.3.7 = STRING: "Cached memory"
iso.3.6.1.2.1.25.2.3.1.3.8 = STRING: "Shared memory"
iso.3.6.1.2.1.25.2.3.1.3.10 = STRING: "Swap space"
[Test Case]
- Install snmp snmpd
- Run snmpwalk:
- snmpwalk -v2c -cpublic arcprsmt01 1.3.6.1.2.1.25.2.3.1.3
+ * Install/configure snmp snmpd
+ * Run snmpwalk:
+ (e.g. snmpwalk -v2c -cpublic arcprsmt01 1.3.6.1.2.1.25.2.3.1.3)
[Potential Regression]
None, the fix has been tested by various impacted users, and feedbacks were
all positives.
This fix a regression introduced by : https://bugs.launchpad.net/bugs/1835818
[Other information]
Upstream commit:
https://github.com/net-snmp/net-snmp/commit/71e487212bd65839e7454df9701524d08cf0d74f
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https://bugs.launchpad.net/bugs/1843036
Title:
[regression] SNMP missing disks in hrStorageTable
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