SNMP error and missing SNMP results

Arka · Post by **Arka** » Wed Oct 26, 2005 5:31 am

Hello,

I just upgraded to 0.8.6g + pre-patched (from 0.8.6f, installed only 1 day before I see the new version)

Some questions :

*** what does mean the red "SNMP error" at the top of each device page ?

*** I have 4 exact same Win2000 servers. (Windows2000/XP Template)

1 is ok I can graph CPU/HDD/Interface
2nd one I can't get CPU info
3rd and 4th ones I have only logged-in users and Process

Why ?

The first one if I do a CPU reload query on the device page I will loose the CPU because it will return 0 result (this is the behavior what with the 2nd server)

Although I get results from snmp command lines from the 4 servers...

*** Got 1 linux box which is ok (except the red "SNMP Error")

How can I debug all this please ?

Thanks in advance.

Linux Kernel 2.6.13
Cacti 0.8.6g
PHP 4.3.11
Apache 2.0.54
MySQL 4.1.12

[Edit : Net-snmp 5.2.1 RRDTool 1.0]

Arka · Post by **Arka** » Wed Oct 26, 2005 6:00 am

If you need more detail, please ask.

Arka · Post by **Arka** » Wed Oct 26, 2005 6:25 am

Here is the red SNMP Error I have on all device page

Arka · Post by **Arka** » Wed Oct 26, 2005 6:31 am

And the SNMP queries returning 0 results (I just reloaded the interface query and now it gives 0 result, although it was ok just before reloading)
This is the 2nd server I talk about in my first post...

Arka · Post by **Arka** » Wed Oct 26, 2005 6:37 am

Cacti.log

Code: Select all

10/26/2005 01:30:01 PM - POLLER: Poller[0] DEBUG: About to Spawn a Remote Process [CMD: /soft/apache/bin/php, ARGS: -q /appli/cacti/cmd.php 0 14]
10/26/2005 01:30:01 PM - PHPSVR: Poller[0] DEBUG: SERVER: cmd
10/26/2005 01:30:01 PM - PHPSVR: Poller[0] DEBUG: GETCWD: /appli/cacti
10/26/2005 01:30:01 PM - PHPSVR: Poller[0] DEBUG: DIRNAM: /appli/cacti
10/26/2005 01:30:01 PM - PHPSVR: Poller[0] DEBUG: FILENM: /appli/cacti/script_server.php
10/26/2005 01:30:01 PM - PHPSVR: Poller[0] PHP Script Server has Started - Parent is cmd
10/26/2005 01:30:01 PM - CMDPHP: Poller[0] PHP Script Server Started Properly
10/26/2005 01:30:01 PM - CMDPHP: Poller[0] Host[12] SNMP: Host responded to SNMP
10/26/2005 01:30:04 PM - CMDPHP: Poller[0] Host[12] RECACHE: Processing 3 items in the auto reindex cache for 'x.x.x.x'.
10/26/2005 01:30:04 PM - CMDPHP: Poller[0] Host[12] DS[26] SNMP: v2: x.x.x.x, dsname: users, oid: .1.3.6.1.2.1.25.1.5.0, output: 14
10/26/2005 01:30:04 PM - CMDPHP: Poller[0] Host[12] DS[27] SNMP: v2: x.x.x.x, dsname: proc, oid: .1.3.6.1.2.1.25.1.6.0, output: 28
10/26/2005 01:30:05 PM - POLLER: Poller[0] CACTI2RRD: /soft/rrdtool/bin/rrdtool update /appli/cacti/rra/xxxxxxxxx_proc_27.rrd --template proc 1130326201:28
10/26/2005 01:30:05 PM - POLLER: Poller[0] CACTI2RRD: /soft/rrdtool/bin/rrdtool update /appli/cacti/rra/xxxxxxxxx_users_26.rrd --template users 1130326201:14
10/26/2005 01:30:06 PM - CMDPHP: Poller[0] Host[12] DS[61] CMD: /soft/apache/bin/php -q /appli/cacti/scripts/query_host_partitions.php x.x.x.x cerberus07 2 get total 2, output: 10487197696
10/26/2005 01:30:06 PM - CMDPHP: Poller[0] Host[12] DS[61] CMD: /soft/apache/bin/php -q /appli/cacti/scripts/query_host_partitions.php x.x.x.x cerberus07 2 get used 2, output: 4853780480
10/26/2005 01:30:06 PM - CMDPHP: Poller[0] Host[12] DS[62] CMD: /soft/apache/bin/php -q /appli/cacti/scripts/query_host_partitions.php x.x.x.x cerberus07 2 get total 3, output: 25860247552
10/26/2005 01:30:06 PM - CMDPHP: Poller[0] Host[12] DS[62] CMD: /soft/apache/bin/php -q /appli/cacti/scripts/query_host_partitions.php x.x.x.x cerberus07 2 get used 3, output: 6554787840
10/26/2005 01:30:06 PM - CMDPHP: Poller[0] Host[12] DS[63] CMD: /soft/apache/bin/php -q /appli/cacti/scripts/query_host_partitions.php x.x.x.x cerberus07 2 get total 5, output: 4132306944
10/26/2005 01:30:06 PM - POLLER: Poller[0] CACTI2RRD: /soft/rrdtool/bin/rrdtool update /appli/cacti/rra/xxxxxxxxx_hdd_total_62.rrd --template hdd_used:hdd_total 1130326201:6554787840:25860247552
10/26/2005 01:30:06 PM - POLLER: Poller[0] CACTI2RRD: /soft/rrdtool/bin/rrdtool update /appli/cacti/rra/xxxxxxxxx_hdd_total_61.rrd --template hdd_used:hdd_total 1130326201:4853780480:10487197696
10/26/2005 01:30:06 PM - CMDPHP: Poller[0] Host[12] DS[63] CMD: /soft/apache/bin/php -q /appli/cacti/scripts/query_host_partitions.php x.x.x.x cerberus07 2 get used 5, output: 140902400
10/26/2005 01:30:08 PM - PHPSVR: Poller[0] DEBUG: PHP Script Server Shutdown request received, exiting

Arka · Post by **Arka** » Wed Oct 26, 2005 6:41 am

snmpwalk (bi-cpu) command line is ok...

$ /appli/netsnmp/bin/snmpwalk -v2c -c xxxxx x.x.x.x .1.3.6.1.2.1.25.3.3.1
HOST-RESOURCES-MIB::hrProcessorFrwID.4 = OID: SNMPv2-SMI::zeroDotZero
HOST-RESOURCES-MIB::hrProcessorFrwID.5 = OID: SNMPv2-SMI::zeroDotZero
HOST-RESOURCES-MIB::hrProcessorLoad.4 = INTEGER: 0
HOST-RESOURCES-MIB::hrProcessorLoad.5 = INTEGER: 0

What could it be ?

Arka · Post by **Arka** » Wed Oct 26, 2005 7:13 am

Verbose Interface query

+ Running data query [1].
+ Found type = '3' [snmp query].
+ Found data query XML file at '/appli/cacti/resource/snmp_queries/interface.xml'
+ XML file parsed ok.
+ Executing SNMP walk for list of indexes @ '.1.3.6.1.2.1.2.2.1.1'
+ No SNMP data returned
+ Found data query XML file at '/appli/cacti/resource/snmp_queries/interface.xml'
+ Found data query XML file at '/appli/cacti/resource/snmp_queries/interface.xml'
+ Found data query XML file at '/appli/cacti/resource/snmp_queries/interface.xml'

Although command line returns :
/appli/netsnmp/bin/snmpwalk -v2c -c xxxxxx x.x.x.x .1.3.6.1.2.1.2.2.1.1
IF-MIB::ifIndex.1 = INTEGER: 1
IF-MIB::ifIndex.16777219 = INTEGER: 16777219
IF-MIB::ifIndex.33554436 = INTEGER: 33554436

Arka · Post by **Arka** » Wed Oct 26, 2005 7:39 am

Verbose CPU query

+ Running data query [9].
+ Found type = '4 '[script query].
+ Found data query XML file at '/appli/cacti/resource/script_queries/host_cpu.xml'
+ XML file parsed ok.
+ Executing script for list of indexes '/soft/apache/bin/php -q /appli/cacti/scripts/query_host_cpu.php x.x.x.x xxxxxx 2 index'
+ Executing script query '/soft/apache/bin/php -q /appli/cacti/scripts/query_host_cpu.php x.x.x.x xxxxxx 2 query index'
+ Found data query XML file at '/appli/cacti/resource/script_queries/host_cpu.xml'
+ Found data query XML file at '/appli/cacti/resource/script_queries/host_cpu.xml'
+ Found data query XML file at '/appli/cacti/resource/script_queries/host_cpu.xml'

Command line returns 0, could it be the problem ?

Arka · Post by **Arka** » Wed Oct 26, 2005 10:31 am

Can't understand why sometimes I get results sometimes not.
For example, I delete a device, DS and graphs assosiated. I create the device again (Win200 or Linux, same behavior).
Sometimes it gets the SNMP info, sometimes not.

After creation, do you need to clear the cache ?
What are the right steps to create a device and get the SNMP results ?

I have created again my second Win2000 server and it has now all the SNMP results. I created again a linux box and now it has no more results.

Hard to understand :/

Is there a reliable way to get a working device when it is created ?

Post by **gandalf** » Wed Oct 26, 2005 10:46 am

Arka wrote:Here is the red SNMP Error I have on all device page

This means, that your target device does not respond to the snmp requests of your cacti poller (e.g. snmp not configured correctly, firewall blocking, ...) Try to snmpwalk against that system from cli.
Reinhard

Arka · Post by **Arka** » Thu Oct 27, 2005 6:25 am

That's what I do, snmpwalk cli. works fine with all servers... Weird :/

Post by **gandalf** » Thu Oct 27, 2005 1:51 pm

Did you pay attention to timeout issues? Does this host show up with status "up" in the device list? If not, please check the "Downed Host Detection" under Settings->Poller (ping refers to UDP ping here, some port in the 30.000s)
Reinhard

Arka · Post by **Arka** » Fri Nov 04, 2005 7:06 am

The hosts were all "up"

I have found what was wrong.

I have checked exec permissions.
But my apache user had no valid shell (no need, it starts as root, then binds to apache user with no shell for security reason)

Simply adding a "normal" shell to this apache user and the problem was fixed...

Thanks for your time.

SNMP error and missing SNMP results

SNMP error and missing SNMP results

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