Re: [squid-users] Squid 3 HTTP accelerator not caching content

> So, I setup my first Squid 3.0STABLE9 proxy in HTTP accelerator mode
> over the weekend. Squid 3 is running on the same machine as the web
> server and here are my HTTP acceleration related config options:
>
> http_port 80 accel vhost
> cache_peer 192.168.1.19 parent 8085 0 no-query originserver login=PASS
>
>
> Here are the cache related options:
>
> cache_mem 64 MB
> maximum_object_size_in_memory 50 KB
> cache_replacement_policy heap LFUDA
> cache_dir aufs /mnt/drive3/squid-cache 500 32 256
>
> As described in this mailing list thread:
>
> http://www2.gr.squid-cache.org/mail-archive/squid-users/199906/0756.html
>
> all of the entries in my store.log have RELEASE as the action:
>
> 1223864638.986 RELEASE -1 FFFFFFFF A1FE29E96A44936155BB873BDC882B12 200
> 1223864638 -1 375007920 text/html 2197/2197 GET
> http://aaa.bbb.ccc.ddd/locations/
>
> Here is a snipet from the cache.log file:
>
> 2008/10/12 21:23:36| Done reading /mnt/drive3/squid-cache swaplog (0
> entries)
> 2008/10/12 21:23:36| Finished rebuilding storage from disk.
> 2008/10/12 21:23:36| 0 Entries scanned
> 2008/10/12 21:23:36| 0 Invalid entries.
> 2008/10/12 21:23:36| 0 With invalid flags.
> 2008/10/12 21:23:36| 0 Objects loaded.
> 2008/10/12 21:23:36| 0 Objects expired.
> 2008/10/12 21:23:36| 0 Objects cancelled.
> 2008/10/12 21:23:36| 0 Duplicate URLs purged.
> 2008/10/12 21:23:36| 0 Swapfile clashes avoided.
> 2008/10/12 21:23:36| Took 0.01 seconds ( 0.00 objects/sec).
> 2008/10/12 21:23:36| Beginning Validation Procedure
> 2008/10/12 21:23:36| Completed Validation Procedure
> 2008/10/12 21:23:36| Validated 25 Entries
> 2008/10/12 21:23:36| store_swap_size = 0
> 2008/10/12 21:23:37| storeLateRelease: released 0 objects
> 2008/10/12 21:24:07| Preparing for shutdown after 2 requests
> 2008/10/12 21:24:07| Waiting 30 seconds for active connections to finish
> 2008/10/12 21:24:07| FD 14 Closing HTTP connection
> 2008/10/12 21:24:38| Shutting down...
> 2008/10/12 21:24:38| FD 15 Closing ICP connection
> 2008/10/12 21:24:38| aioSync: flushing pending I/O operations
> 2008/10/12 21:24:38| aioSync: done
> 2008/10/12 21:24:38| Closing unlinkd pipe on FD 12
> 2008/10/12 21:24:38| storeDirWriteCleanLogs: Starting...
> 2008/10/12 21:24:38| Finished. Wrote 0 entries.
> 2008/10/12 21:24:38| Took 0.00 seconds ( 0.00 entries/sec).
> CPU Usage: 0.041 seconds = 0.031 user + 0.010 sys
> Maximum Resident Size: 0 KB
> Page faults with physical i/o: 0
> Memory usage for squid via mallinfo():
> total space in arena: 3644 KB
> Ordinary blocks: 3511 KB 8 blks
> Small blocks: 0 KB 1 blks
> Holding blocks: 1784 KB 9 blks
> Free Small blocks: 0 KB
> Free Ordinary blocks: 132 KB
> Total in use: 5295 KB 145%
> Total free: 132 KB 4%
> 2008/10/12 21:24:38| aioSync: flushing pending I/O operations
> 2008/10/12 21:24:38| aioSync: done
> 2008/10/12 21:24:38| aioSync: flushing pending I/O operations
> 2008/10/12 21:24:38| aioSync: done
> 2008/10/12 21:24:38| Squid Cache (Version 3.0.STABLE9): Exiting normally.
>
> I'm running on RedHat EL 5. With Squid running, I can access the
> website just fine and pages load without problems or issues. It's just
> nothing is being cached.
>
> This is my first time configuring Squid as a HTTP accelerator so I
> probably missed something when I set it up. Any ideas on what might be
> wrong?
>
> Thanks in advance for your time and assistance! :)
>

Q) Do you have any of the routing access controls (http_access,
never_direct, cache_peer_access, cache_peer_domain) which make squid pass
the accelerated requests back to the web server properly?

DNS should be pointing the domain at Squid so its DIRECT access lookups
will normally loop back inwards and fail. The resulting error pages may
not be cachable.

Q) what does your access.log say about the requests?

Q) are the test pages you are requesting cachable?
This tester should tell you what and for how long it caches
http://www.ircache.net/cgi-bin/cacheability.py

Amos
Received on Mon Oct 13 2008 - 23:38:26 MDT