Simple TCP Client - Spring Integration ( Not connecting)

[pkbhavani]

Thank you so much. when setting using-nio=false as in my configuration, my current setting pool-size=2 is working. I will try with pool-size=3.

[Gary Russell]

Right; the pool-size only needs to be increased when using-nio="true"

Note that, as mentioned in the reference manual, using-nio is usually only needed for high volume and/or handling many connections.