tcp plugin with multiple connections about warp10-platform HOT 5 CLOSED

By default the maximum number of connection is limited to 1. Would you need to increase the number of parallel connections, you should specify maxConnections in your Map. I tested with 10 and it works as you expect.

There is however a bug where the server sockets accepts a connection and does not immediately close it although the ThreadPoolExecutor is out of threads. This can be seen with the second netcat you start.

As for the timeout, I see no issue according to my tests: I allowed a single connection, connected with netcat and killed it (-9). Another netcat could connect and send data, so I think we're good. If you find a issue with physical disconnection, I will do further testing.

from warp10-platform.

I did a few more tests with maxConnections and real life cable disconnection:

Each new disconnect/reconnect, a new port is opened.

netstat | grep 4242                
tcp6       0      0 pi55:4242               pi102:54982             ESTABLISHED
tcp6       0      0 pi55:4242               pi102:50344             ESTABLISHED
tcp6       0      0 pi55:4242               pi102:62213             ESTABLISHED
tcp6       0      0 pi55:4242               pi102:62389             ESTABLISHED
tcp6       0      0 pi55:4242               pi102:52907             ESTABLISHED

(only one is really established, but anyway, the maxConnections now allows the communication to recover)

I will test the patch.

from warp10-platform.

8 hours later,
all the connexions remains ESTABLISHED (should be CLOSED_WAIT).

from warp10-platform.

Is this issue fixed by an already merged PR?

from warp10-platform.

yes, it is.

from warp10-platform.