Re: Memory usage - accounted 200+Mb physical 128 ???

hamster@lspace.org writes:

>Hi all,
>
>I've got something weird here that I can't understand. I'm running a
>cache with 128Mb ram, 4Gb cache.
>
>The accounted memory usage goes like thus :-
>
>StoreEntry 428834 x 52 bytes = 21776 KB
>URL strings = 21173 KB
>IPCacheEntry 920 x 36 bytes = 32 KB
>FQDNCacheEntry 0 x 56 bytes = 0 KB
>Hash link 0 x 12 bytes = 0 KB
>Pool MemObject structures 13 x 80 bytes = 1 KB ( 0 free)
>Pool for Request structur 11 x 4408 bytes = 47 KB ( 0 free)
>Pool for in-memory object 0 x 4096 bytes = 0 KB ( 0 free)
>Pool for disk I/O 20886 x 8192 bytes = 167088 KB ( 0 free)
>NetDB Address Entries 0 x 76 bytes = 0 KB
>NetDB Host Entries 0 x 8 bytes = 0 KB
>NetDB Peer Entries 0 x 24 bytes = 0 KB
>ClientDB Entries 1615 x 292 bytes = 460 KB
>Miscellaneous = 644 KB
>Total Accounted = 211272 KB

Looks like you have a buggy version with a serious
memory leak. You should upgrade. (please don't tell me its
the latest version).

>It looks like putting an accelerator/redirector in place on the proxy
>opens up a possible dos attack.
>
>GET / HTTP/1.0 on the IP of the proxy (rather than the IP of an
>accelerated site) causes the proxy to shoot off into a death spiral of
>requests. When without the redirector the request is trapped and
>junked by squid. I've stuck a few extra lines into my code to trap
>requests for the IP of the proxy, but I think it's something to watch.

This also sounds like an old bug which has been fixed.

Duane W.
Received on Thu Jul 02 1998 - 10:00:31 MDT