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ASF GitHub Bot commented on FLINK-1561: --------------------------------------- GitHub user StephanEwen opened a pull request: https://github.com/apache/flink/pull/412 [FLINK-1561] [build system] Use a fresh fork for each integration test run Helps the build stability on Travis for integration tests. You can merge this pull request into a Git repository by running: $ git pull https://github.com/StephanEwen/incubator-flink flink1561 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/flink/pull/412.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #412 ---- commit a8c99d5a8fc6a700a670da5443d9a808ac5eaaa0 Author: Stephan Ewen <se...@apache.org> Date: 2015-02-17T10:10:48Z [FLINK-1561] [build system] Use a fresh fork for each integration test run ---- > Improve build server robustness by not reusing JVMs in integration tests > ------------------------------------------------------------------------ > > Key: FLINK-1561 > URL: https://issues.apache.org/jira/browse/FLINK-1561 > Project: Flink > Issue Type: Improvement > Components: Build System > Affects Versions: 0.9 > Reporter: Stephan Ewen > Assignee: Stephan Ewen > Fix For: 0.9 > > > Right now, JVM forks are reused across unit and integration tests. While it > makes a lot of sense for the very quick unit tests, the integration tests > benefit less. > We also see spurious JVM failures in the integration tests that are most > likely related to JVM issues. An example is the trace below: > {code} > java.io.IOException: Cannot allocate memory > at sun.nio.ch.FileDispatcherImpl.write0(Native Method) > at sun.nio.ch.FileDispatcherImpl.write(FileDispatcherImpl.java:60) > at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93) > at sun.nio.ch.IOUtil.write(IOUtil.java:65) > at sun.nio.ch.FileChannelImpl.write(FileChannelImpl.java:205) > at > org.apache.flink.runtime.io.disk.iomanager.SegmentWriteRequest.write(AsynchronousFileIOChannel.java:270) > at > org.apache.flink.runtime.io.disk.iomanager.IOManagerAsync$WriterThread.run(IOManagerAsync.java:440) > {code} > I think we can improve reliability of Travis tests by not reusing forks for > integration tests. -- This message was sent by Atlassian JIRA (v6.3.4#6332)