1
vote
1answer
164 views

SSL Connect timing out during handshake (client exchange re-transmission)

We have a Java LDAP client making SSL connection to AD. Some times the connect hangs with client and server re-transmitting Client Key Exchange and ACK packets continuously as shown below and ...
1
vote
1answer
162 views

Reasons for a TCP Timeout scenario

I am actually currently investigating long running connections of a Java/Tomcat based Web application. After ruling out any internal or application based reasons, I am now down to the network layer. ...
2
votes
1answer
2k views

TCP Window Size going to 0 / Wget stops downloading?

I have a somewhat complex setup that doesn't work, and I'm struggeling quite a bit to track down the root cause. First of all the big picture: Node backend is a medium size windows azure worker role ...
1
vote
2answers
4k views

analyse TCP performance by interpreting “netstat -s”

I have executed netstat -s on my dedicated server running debian. I'd like to interprete the results because I'm experiencing connectivity problems with TCP. I don't know how to read these results. ...
1
vote
2answers
655 views

CLOSE_WAIT keeping process alive on windows

I have several java processes running on a windows server. I have noticed from time to time when I try to kill the process it remains alive. The cause seems to be sockets in CLOSE_WAIT associated with ...
1
vote
2answers
1k views

TCP performance differences between RH Linux and Solaris in java?

While comparing java TCP socket performance between RH Linux and Solaris, one of my test is done by using a java client sending strings and reading the replies from a java echo server. I measure the ...
0
votes
5answers
2k views

Lingering tcp connection in LISTEN state

My java application can sometimes be killed by an external script. This can be done either with SIGTERM or with SIGKILL. The application is a server which receives many connections per second, and it ...
12
votes
5answers
5k views

I'm designing a system to handle 10000 TCP connections per second, what problems will I run into?

I have a relatively new 8-core box running CentOS. I would like to develop a stats server that uses TCP. It's very simple, it accepts a TCP connection, increments a counter and closes the connection. ...