[jira] [Created] (FLINK-1498) Spurious failures on Travis for I/O heavy tasks

["Stephan Ewen (JIRA)" <ji...@apache.org>]

Stephan Ewen created FLINK-1498:
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             Summary: Spurious failures on Travis for I/O heavy tasks
                 Key: FLINK-1498
                 URL: https://issues.apache.org/jira/browse/FLINK-1498
             Project: Flink
          Issue Type: Bug
          Components: Build System
    Affects Versions: 0.9
            Reporter: Stephan Ewen
            Assignee: Stephan Ewen
            Priority: Minor
             Fix For: 0.9


The symptom is missing memory in the Java NIO classes 

{code}
Caused by: 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:210)
	at org.apache.flink.runtime.io.disk.iomanager.SegmentWriteRequest.write(AsynchronousFileIOChannel.java:267)
	at org.apache.flink.runtime.io.disk.iomanager.IOManagerAsync$WriterThread.run(IOManagerAsync.java:440)
{code}

>From a quick check, it seems you can fix this by increasing the minimal JVM memory. I will try to add {{-Xms256}}.



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