Sven,
tcp_tw_recycle is incompatible with NAT on the server side
... because it will enforce the verification of TCP time stamps.
Unless all clients behind a NAT (actually PAD/masquerading) device
use identical timestamps (within a certain range), most of them will
send invalid TCP
Nils Goroll wrote:
The outer conditional verifies that the incoming SYN has
a timestamp, that tcp_tw_recycle is enabled, and that the origin
exists in our peer cache. Note that it only checks the IP of the
origin. Doesn't it make sense to also match on port?
My understanding is that the
Hello
On high load we are geting asserts (and varnish restarts) like this:
varnishd[23515]: Child (7569) Panic message: Assert error in Tcheck(),
cache.h line 648:#012 Condition((t.e) != 0) not true. thread =
(cache-worker)sp = 0x7f76c5875008 {#012 fd = 611, id = 611, xid =
778413112,#012
Sven,
Right, you're saying that the srcaddr+srcport pair of a connection in
TIME_WAIT should not be reused under this scheme (i.e. the SYN can be
dropped), and I agree. Then I don't understand why a new connection
originating from a *different* source port (although from the same
source IP)
i redefined vcl_recv this way:
if (req.request != GET
req.request != HEAD
req.request != PUT
req.request != POST
req.request != TRACE
req.request != OPTIONS
req.request != DELETE) {
/* Non-RFC2616 or CONNECT which is weird. */
return
Hello,
Anyone got experience in using varnish serving FLV file? How does it
compare with nginx?
Or it is recommended to using varnish for video streaming?
Thanks.
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Hi list
I love varnish and really want to use it :D Any clue to fix my problem , it
come out alot backend fail ( i guess timeout problem )
my setup
1.Centos 5.3 64bit varnish / webserver
2.nginx backend server (it run over 200+days 2Mil pv/day without any problem
healthy hardware)
3.varnish
Well I might be a bit off on this, but 503's often involve ulimit
ceiling maximums being hit and exceeded.
ulimit -a
What is that limit set at for open files?
In our experience many high performance web related software products
suffer from low open file limit. I've seen 256 in SunOS, 1024 in
