[squid-users] Weird statistics from snmp

[Matias]

Hi,

I'm monitoring the oids:

1.3.6.1.4.1.3495.1.4.1.3 (cacheHits)
and
1.3.6.1.4.1.3495.1.4.1.6 (cacheMisses)

For some reason, the first one increases much more than the latter one. 
I'm watching the access_log, and most of the results are TCP_MISS.


So, how must I interpret the fact that I'm seeing over snmp more HITS 
than MISSES?


I must be missing something, but I don't know what.


Thanks!

Re: [squid-users] Weird statistics from snmp

[Amos Jeffries]

Matias wrote:

Hi,

I'm monitoring the oids:

1.3.6.1.4.1.3495.1.4.1.3 (cacheHits)
and
1.3.6.1.4.1.3495.1.4.1.6 (cacheMisses)

For some reason, the first one increases much more than the latter one. 
I'm watching the access_log, and most of the results are TCP_MISS.


So, how must I interpret the fact that I'm seeing over snmp more HITS 
than MISSES?


I must be missing something, but I don't know what.


Thanks!


What version of Squid?

Amos
--
Please be using
  Current Stable Squid 2.7.STABLE7 or 3.0.STABLE19
  Current Beta Squid 3.1.0.13

Re: [squid-users] Weird statistics from snmp

[Henrik Nordstrom]

mån 2009-09-21 klockan 10:27 +0200 skrev Matias:
 Hi,
 
 I'm monitoring the oids:
 
 1.3.6.1.4.1.3495.1.4.1.3 (cacheHits)
 and
 1.3.6.1.4.1.3495.1.4.1.6 (cacheMisses)

Those two are
squid.cacheNetwork.cacheIpCache.cacheIpHits
and
squid.cacheNetwork.cacheIpCache.cacheIpMisses

What you are looking for are
squid.cachePerf.cacheProtoStats.cacheProtoAggregateStats.cacheHttpHits
.1.3.6.1.4.1.3495.1.3.2.1.2
and
squid.cachePerf.cacheProtoStats.cacheProtoAggregateStats.cacheProtoClientHttpRequests
.1.3.6.1.4.1.3495.1.3.2.1.1

there is no SNMP variable for the number of misses, but you can
calculate it by substracting the hits from reqeusts.


 For some reason, the first one increases much more than the latter one. 
 I'm watching the access_log, and most of the results are TCP_MISS.

It should. You are looking into the IP cache where Squid internally
caches DNS lookups.

Regards
Henrik