Just to clarify a bit. I hope this also answers your questions. timeout http-request Is the time from the first client byte received, until last byte sent to the client (regardless of keep alive). So if your backend is too slow or the client is sending his request too slow, the whole communication might take … Read more
What do you need to adjust it to do, or rather: are you seeing any problems with having it set how you do? There isn’t a good one-size-fits-all answer; if most client browsers are able to load all the resources on a page in 5 seconds then 5 seconds is just fine, but it completely … Read more
Nginx closes keepalive connections when the worker_connections limit is reached. That’s true. src/core/ngx_connection.c:l843 – ngx_drain_connections(); src/http/ngx_http_request.c:l3042 – ngx_reusable_connection(c, 1);
I suspect that this solution will not work for SSHFS, etc, but you could take a look at Mosh which provides roaming support for at least the shell itself.
Believe the question has been very precisely answered by Willy Tarreau, the author of HAProxy, in http://www.formilux.org/archives/haproxy/1003/3259.html. Citation from the above link Heartbeat is not the best tool to get a redundant haproxy setup, it was designed to build clusters, which is a lot different from having two redundant stateless network equipments. Network oriented tools … Read more
You could try ab -n 500 -c 5 -k http://www.domain.com/ and look via top, if 5 workers are constantly serving the requests keepalive should work (-k) switch. Do the same without -k and see the difference. Cheers Izac
Based on the log you provided from Nginx, it seems that the connections between your server and users are unstable or slow. Please try traceroute to your client IP address or his/her gateway from your server. Also, ping your client IP address for a long time to see the packet loss rate and response time. … Read more
There are 2 good answers already, but the perhaps most important real-life issue is not mentioned yet. First off, the OP might want to read the 2 preceding answers and this little blog post to understand what keepalives are. (The author doesn’t elaborate on the part about TCPI/IP getting “faster” the longer the connection is … Read more
The default connection timeout in IIS7 is 2 minutes. Click on your web site in IIS Mgr, click Advanced Settings, and expand Connection Limits. The Connection Timeout (Seconds) setting is what governs this. If IIS doesn’t receive activity on a connection for this duration then it will time the connection out. This is regardless of … Read more
curl already uses keepalive by default. As an example: curl -v http://www.google.com http://www.google.com Produces the following: * About to connect() to www.google.com port 80 (#0) * Trying 74.125.39.99… connected * Connected to www.google.com (74.125.39.99) port 80 (#0) > GET / HTTP/1.1 > User-Agent: curl/7.19.7 (x86_64-pc-linux-gnu) libcurl/7.19.7 OpenSSL/0.9.8k zlib/1.2.3.3 libidn/1.15 > Host: www.google.com > Accept: */* … Read more