On 2014-02-28 06:02, Mohamad Saeed wrote:
thank you for your replay
recently i found that when traffic fall down the cache.log have so
many lines like this
{Accept: */*
Content-Type: application/x-www-form-urlencoded
2014/02/27 18:49:04| WARNING: HTTP header contains NULL characters
{Accept: */*
Content-Type: application/x-www-form-urlencoded}
NULL
what should be the problem ?
It is a badly written software
http://wiki.squid-cache.org/KnowledgeBase/UnparseableHeader
This particular case the sender is adding a custom Content-Type which
includes a NULL (\0 or 0x00) byte. It should be sending LF byte with CR
or a charset label first. We can tell what it should be because we know
the mime type but Squid cannot.
Squid is dropping the request. It should also be dropping the
connection. If this is happening a lot at once there may be some
slowdown while new connections are setup and the sockets cycle through
TCP CLOSE_WAIT state.
It could be the client UA or a script on the website visited. Please
note the details and inform the relevant people to get the sender
software fixed.
Amos
On 02/24/2014 04:40 PM, Mohamad Saeed wrote:
Hi all,
I'm using squid on a 100Mbps ISP with about 5,000 users.
I have an Intel Xeon processor-machine, with 8GB of RAM and 500
of HD for the cache.
Squid usually work fine and the memory is OK ,but thetraffic full down
Frequently then it back to normal state .
all my server resources are in best stat because i don't cache any
thing .
this is my squid.conf snapshot :
logfile_rotate 0
url_rewrite_program /usr/bin/squidGuard
url_rewrite_children 192 startup=150 idle=10 concurrency=0
redirector_bypass on
http_port 8080
http_port 3129 tproxy
http_port 3127 intercept
wccp2_router x.x.x.x
wccp2_forwarding_method 2
wccp2_return_method 2
wccp2_assignment_method mask
wccp2_service dynamic 80
wccp2_service_info 80 protocol=tcp flags=src_ip_hash priority=240
ports=80
wccp2_service dynamic 90
wccp2_service_info 90 protocol=tcp flags=dst_ip_hash,ports_source
priority=240 ports=80
wccp2_rebuild_wait on
wccp_version 4
cache deny all
cache_log /dev/null
Do you have any idea or any other data I can collect to try and
track down this?
thanks regards,
