Hi All, I have 2 questions about the way NioSocketAcceptor allocates and uses ports.
Background We are using a 3rd party product (QuickFix/J) for client/server communication, which in turn uses MINA for network communication. For server side communication, QuickFix/J is instantiating a NioSocketAcceptor for listening on a specified port. We recently noticed an issue where a large number of additional ports are also being allocated when a NioSocketAcceptor is instantiated. We seem to see around 10 'pairs' of ports allocated (20 total) with each instantiation. As you can see in the sample below, they seem to be in pairs, where they talk to each other. ?? Proto Local Address Foreign Address State PID TCP 127.0.0.1:55686 MYSYS:55687 ESTABLISHED 24976 TCP 127.0.0.1:55687 MYSYS:55686 ESTABLISHED 24976 TCP 127.0.0.1:55688 MYSYS:55689 ESTABLISHED 24976 TCP 127.0.0.1:55689 MYSYS:55688 ESTABLISHED 24976 ... Note that the actual port being listened on is a different port altogether... example: port 6073 I have searched for why this is occurring, but can't find any documentation on it. Questions 1) Why do 20 ports get allocated when a NioSocketAcceptor is instantiated? 1a) What is it using these ports for? 2) Is there a way to control this? (or control the range it allocates from?) Thanks, Phil Hudson Principal Software Engineer Charles River Development, A State Street Company 700 District Avenue, Burlington, MA 01803 USA Phone + 1 781 425 3805 crd.com<https://www.crd.com/> Stay Connected: [cid:image009.png@01D3682E.12305CA0]<https://www.linkedin.com/company/charles-river-development/> [cid:image010.png@01D3682E.12305CA0] <https://twitter.com/CRDChirp> [cid:image011.png@01D3682E.12305CA0] <https://www.youtube.com/user/CharlesRiverDev> [cid:image012.png@01D3682E.12305CA0] <https://www.facebook.com/CharlesRiverDev/> [cid:image013.png@01D3682E.12305CA0] <https://www.instagram.com/charlesriverdev/> The information in this e-mail communication together with any attachments is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. If you are not the intended recipient of this e-mail communication, please notify us immediately. Any views expressed in this e-mail communication are those of the individual sender, unless otherwise specifically stated. Charles River Development does not represent, warrant or guarantee that the integrity of this communication has been maintained or that the communication is free of errors, virus or interference.
