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Re: question in cache Manager about # of clients and # of hits http

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On 30/07/2013 7:31 p.m., Ahmad wrote:
hi ,
i have Squid Cache: Version 3.1.6
============
i have squidclient installed on .

here is the result from squidclient :
HTTP/1.0 200 OK
Server: squid
Mime-Version: 1.0
Date: Tue, 30 Jul 2013 07:18:45 GMT
Content-Type: text/plain
Expires: Tue, 30 Jul 2013 07:18:45 GMT
Last-Modified: Tue, 30 Jul 2013 07:18:45 GMT
X-Cache: MISS from dft
X-Cache-Lookup: MISS from dft:22001
Via: 1.0 dft (squid)
Proxy-Connection: close

Squid Object Cache: Version 3.1.6
Start Time:     Sun, 28 Jul 2013 13:37:00 GMT
Current Time:   Tue, 30 Jul 2013 07:18:45 GMT
Connection information for squid:
         *Number of clients accessing cache:      2211
         Number of HTTP requests received:       80437449*
         Number of ICP messages received:        0
         Number of ICP messages sent:    0
         Number of queued ICP replies:   0
         Number of HTCP messages received:       0
         Number of HTCP messages sent:   0
         Request failure ratio:   0.00
         Average HTTP requests per minute since start:   32152.5
         Average ICP messages per minute since start:    0.0
         Select loop called: 2096328654 times, 0.072 ms avg
Cache information for squid:
         Hits as % of all requests:      5min: 44.1%, 60min: 43.4%
         Hits as % of bytes sent:        5min: 36.8%, 60min: 38.6%
         Memory hits as % of hit requests:       5min: 18.3%, 60min: 16.9%
         Disk hits as % of hit requests: 5min: 45.3%, 60min: 43.1%
         Storage Swap size:      272496340 KB
         Storage Swap capacity:  98.6% used,  1.4% free
         Storage Mem size:       1014520 KB
         Storage Mem capacity:   100.0% used, 7276133255119654.0% free
         Mean Object Size:       108.79 KB
         Requests given to unlinkd:      0
Median Service Times (seconds)  5 min    60 min:
         HTTP Requests (All):   0.07014  0.07014
         Cache Misses:          0.19742  0.19742
         Cache Hits:            0.00000  0.00000
         Near Hits:             0.64968  0.20843
         Not-Modified Replies:  0.00000  0.00000
         DNS Lookups:           0.06083  0.06364
         ICP Queries:           0.00000  0.00000
Resource usage for squid:
         UP Time:        150104.835 seconds
         CPU Time:       105900.170 seconds
         CPU Usage:      70.55%
         CPU Usage, 5 minute avg:        58.96%
         CPU Usage, 60 minute avg:       52.03%
         Process Data Segment Size via sbrk(): 4192192 KB
         Maximum Resident Size: 16999120 KB
         Page faults with physical i/o: 89
Memory usage for squid via mallinfo():
         Total space in arena:   -1980 KB
         Ordinary blocks:       -165956 KB 453500 blks
         Small blocks:               0 KB      0 blks
         Holding blocks:         66172 KB     15 blks
         Free Small blocks:          0 KB
         Free Ordinary blocks:  163975 KB
         Total in use:          -99784 KB -154%
         Total free:            163975 KB 255%
         Total size:             64192 KB
Memory accounted for:
         Total accounted:       -1252542 KB -1950%
         memPool accounted:     -1252542 KB -1950%
         memPool unaccounted:   1316733 KB 2051%
         memPoolAlloc calls:        12
         memPoolFree calls:  22462254711
File descriptor usage for squid:
         Maximum number of file descriptors:   65536
         Largest file desc currently in use:   34282
         Number of file desc currently in use: 23259
         Files queued for open:                   0
         Available number of file descriptors: 42277
         Reserved number of file descriptors:   100
         Store Disk files open:                11827
Internal Data Structures:
         2547268 StoreEntries
         157597 StoreEntries with MemObjects
         156565 Hot Object Cache Items
         2504776 on-disk objects





=============================================

as we see above , we have :
*Number of clients accessing cache:      2211*

does that mean that i have 2211 single ips accessing squid ??
i checked from my side  " from my router " , i found my real clients access
squid is about 1580 ,  so  why it is greater that 1580 ????

Did you check both IPv6 and IPv4 clients?

does this value count the Natting  in routers as new clients ??

Only if they reach Squid as identifiably different IPs.

i mean does this  value accurate ? or it count # of ips in a range of time
???

It is the count of distinct IPs currently in the client-DB.

The client-DB is the set of distinct IPs connected to your Squid from any direction (both LAN and WAN) over a period of up to 24hrs. They are "faded" / aged out of the DB dynamically based on several factors including last access and frequecy of access when the client-DB garbage collector gets run to remove old entries.

Amos




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