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From Flavio Pompermaier <pomperma...@okkam.it>
Subject Java heap space error
Date Thu, 12 May 2016 16:55:43 GMT
Hi to all,
running a job that writes parquet-thrift files I had this exception (in a
Task Manager):

io.netty.channel.nio.NioEventLoop                             - Unexpected
exception in the selector loop.
java.lang.OutOfMemoryError: Java heap space
2016-05-12 18:49:11,302 WARN
org.jboss.netty.channel.socket.nio.AbstractNioSelector        - Unexpected
exception in the selector loop.
java.lang.OutOfMemoryError: Java heap space
2016-05-12 18:49:11,302 ERROR
org.apache.flink.runtime.io.disk.iomanager.IOManager          - The handler
of the request-complete-callback threw an exception: Java heap space
java.lang.OutOfMemoryError: Java heap space
2016-05-12 18:49:11,303 ERROR
org.apache.flink.runtime.io.disk.iomanager.IOManager          - I/O reading
thread encountered an error: segment has been freed
java.lang.IllegalStateException: segment has been freed
    at
org.apache.flink.core.memory.HeapMemorySegment.wrap(HeapMemorySegment.java:85)
    at
org.apache.flink.runtime.io.disk.iomanager.SegmentReadRequest.read(AsynchronousFileIOChannel.java:310)
    at
org.apache.flink.runtime.io.disk.iomanager.IOManagerAsync$ReaderThread.run(IOManagerAsync.java:396)
2016-05-12 18:49:11,303 ERROR
org.apache.flink.runtime.io.disk.iomanager.IOManager          - I/O reading
thread encountered an error: segment has been freed


Any idea of what could be the cause?

Best,
Flavio

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