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From Andrus Adamchik <>
Subject Re: Build failed in Jenkins: cayenne-master » derby,jdk-1.8.0,Ubuntu #74
Date Mon, 10 Nov 2014 09:21:51 GMT
> My next idea is that the builds are all happening in parallel and we are opening some
db connections (derby, h2, etc) to either a port or socket on the build slave which is colliding
between some of the builds

Looks like build #78 also has failures, so while it does not invalidate the theory about cross
build conflicts, other problems still exist (ordering of deletes within the same build that
we are working on).

I think the following invalidates this theory though - none of our in-memory DBs are using
port connections; rather they work with files. If parallel builds were sharing workspace on
the filesystem of a given build node, none of our tests would work period ('mvn clean' of
one build would delete the DB of another build). But from what I can tell, workspace directories
are separate, hence I can't imagine how a conflict can arise.


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