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Re: [cbi-dev] Are TCP/IP ports shared between JIPP instances

Hi Jonah,

Thanks for asking. Yes, ports are shared between some JIPP instances as they are colocated on a handful of machines.

As you sense it, the port may be available or unavailable. Your best bet is to randomize this port, and to have a retry-loop until you find a free one.

We are working on some changes on our infra to better isolate the JIPPs from each other, but this is not something very short term.


Mikaël Barbero - Eclipse Foundation
IT Services - Release Engineering
📱 (+33) 642 028 039
🐦 @mikbarbero

Le 19 mars 2018 à 12:59, Jonah Graham <jonah@xxxxxxxxxxxxxxxx> a écrit :

Hi folks,

Are TCP/IP ports shared between JIPP instances? Do the machines run
independently in that way?

The CDT has some tests that we have had for a while that run on a
hard-coded port (9999). I want to ensure that I am not interfering
with other users of the JIPP, and that they are not interfering with

On the CDT JIPP I make sure the jobs that run these tests cannot be
run in parallel. But if the ports are shared, then I can probably
rewrite the tests.


Jonah Graham
Kichwa Coders Ltd.
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