[XML] SquidStats version 0.1 (cacti 0.8.5 only!!!)

[gninja]

Adding that line to snmpd is what should enable proxying.

Try just doing an snmpwalk.

(sorry about the delay in replying. just got back from vacation.)

[b0fh]

If I do an snmpwalk, I get:

Code: Select all

snmpwalk 127.0.0.1:3401 snmppublic .1.3.6.1.4.1.3495.1.1
snmppublic: Unknown Object Identifier (Sub-id not found: (top) -> snmppublic)

Though I think my squid is configured properly:

Code: Select all

acl snmppublic snmp_community public
snmp_port 3401
snmp_access allow snmppublic localhost

Squid is also listenung on port 3401 udp

[gninja]

Try changing the snmp_access from localhost to all, and see if that works. It's possible, though unlikely, that your routing is causing the request to appear to come from the network interface rather than the loopback interface.

Also, which version of squid are you running?

[b0fh]

I changed it to "all", but no success. I'm running squid 2.5.7 and net-snmp 5.2

[gninja]

try:

Code: Select all

snmpwalk -v 1 -c snmppublic  localhost:3401 1.3.6.1.4.1.3495.1

Your syntax was wrong, and it was trying to hit the 'snmppublic' oid, which of course doesn't exist.

If that command works, then squid's snmp is working. And then you can try:

Code: Select all

snmpwalk -v 2c -c snmppublic localhost 1.3.6.1.4.1.3495.1

Which will hit snmpd, and hopefully proxy right.

[b0fh]

Mh, strange, I get

Code: Select all

snmpwalk -v 1 -c snmppublic  localhost:3401 1.3.6.1.4.1.3495.1
Timeout: No Response from localhost:3401

although squid is running and listening on 3401

[gninja]

Well, at this point it's a squid problem, not a cacti problem...

I suggest maybe trying it on a different machine, or recompiling squid.

Alternatly try hitting a squid list, or google?

[b0fh]

I had some stuff messed up in my squid-config, now the snmpwalk works (also if I use the proxy over snmpd). But cacti doesn't graph anything, the rrds aren't updated and the logfile doesn't show any errors (loglevel set to debug). I tried both setting the port to 161 (proxy) and 3401 (direct to squid) in the cacti-device; at 3401 I get an "snmp error", at 161 cacti seems to connect to the host, at least it displays host informations.
Any ideas?

[gninja]

set it to port 161, and make sure to refresh your data queries. (hit the little green circle next to them on the device page) You should see something like:

Code: Select all

3) WebCache - Squid Statistics - Core  	 (Verbose Query)  	 Uptime Goes Backwards  	 Success [1 Item, 1 Row]  	 Reload Data Query  Delete Data Query Association
4) WebCache - Squid Statistics - Median Based 	(Verbose Query) 	Uptime Goes Backwards 	Success [3 Items, 3 Rows] 	Reload Data Query  Delete Data Query Association

[b0fh]

Thanks for your quick reply. I already tried it, but it gives me the following php-error:

Code: Select all

Warning: Variable passed to each() is not an array or object in /home/httpd/htdocs/cacti08/lib/data_query.php on line 490

Warning: Cannot modify header information - headers already sent by (output started at /home/httpd/htdocs/cacti08/lib/data_query.php:490) in /home/httpd/htdocs/cacti08/host.php on line 70

cacti 0.8.6c, php 4.3.10...

[gninja]

Hrm. Check your data queries and make sure they can find the xml files?

[abdock]

I have the same problem. Cannot get squid stats.

Have installed snmpd on squid pc, but somehow am not able to query snmp to that machine.

[joecen]

Folks:

I'm placing this first release in this forum because you either have to be brave enough to be using a cacti 0.8.5 pre-release installation or desperate enough to upgrade in order to get your squid system monitored.

So this most definitely needs an upgrade to the latest pre-release version - I've tested SquidStats v0.1 with the 28Jan build.

The other reason I'm putting this out here, is that it would be great if someone could give it a spin and see whether there are any problems with it.

I will then re-release as v0.2 in the main add-ons forum once cacti 0.8.5 is out.

For further details please see the included readme.txt file.

Kind Regards,
Rolf.

I use it fine!
thank u!

[David Rickard]

I've got Cacti 0.8.6c running on Gentoo - everything was installed from portage.

I've added these templates, added the host, and bam, I get:

Code: Select all

Warning: Variable passed to each() is not an array or object in /data/www/localhost/htdocs/cacti/lib/data_query.php on line 490

Warning: Variable passed to each() is not an array or object in /data/www/localhost/htdocs/cacti/lib/data_query.php on line 490

Warning: Cannot modify header information - headers already sent by (output started at /data/www/localhost/htdocs/cacti/lib/data_query.php:490) in /data/www/localhost/htdocs/cacti/host.php on line 121

Now this looks like somewhere along the lines, when the snmp utils are talking to the server, they are getting mangled data. If I try and query the server as per the docs:

Code: Select all

root@server / # snmpwalk -c public -v1 server.bcuc.ac.uk:3401 .1.3.6.1.4.1.3495.1
SNMPv2-SMI::enterprises.3495.1.1.1.0 = INTEGER: 8176
SNMPv2-SMI::enterprises.3495.1.1.2.0 = INTEGER: 28934796

<SNIP>   ---------- 8<-----------

Error: OID not increasing: SNMPv2-SMI::enterprises.3495.1.5.2.1.1.x.x.x.x
 >= SNMPv2-SMI::enterprises.3495.1.5.2.1.1.x.x.x.x

I get quite a few lines of info, and the last line is the above error. I've added the x.x.x.x to protect our IPs

If I click Back after the error, it says save successful, and manually querying the data sources from the little green 'O' icons produces similar error.

Now, the server is configured correctly, is running the latest stable version of squid, and seems quite happy. I'm stumped! I'm querying Novell servers, printers and a few other bits with no problems, so I don't know why its doing this.

Any ideas?

[gandalf]

Rolf,

a great thanks to you for those stats.
The first time I used the median based one, I got some trouble interpreting 3 Hits graphs and three service stat graphs, because the title looks all the same (I generated the stats for all 3 medians, 1 min, 5 min and 60 mins). So my suggestions is to change the graph title in graph templates from

Code: Select all

|host_description| - Squid - Service Timers

to

Code: Select all

|host_description| - Squid - Service Timers (|query_medianTime| min)

which will do the trick.
This relates to both

• WebCache - Squid - Cache Hit Rate and
  WebCache - Squid - Service Timers

SW: cacti 0.8.6c with cactid 0.8.6e

Cheers
Reinhard