[jira] [Created] (FLINK-2773) OutOfMemoryError on YARN Session

["Fabian Hueske (JIRA)" <ji...@apache.org>]

Fabian Hueske created FLINK-2773:
------------------------------------

             Summary: OutOfMemoryError on YARN Session
                 Key: FLINK-2773
                 URL: https://issues.apache.org/jira/browse/FLINK-2773
             Project: Flink
          Issue Type: Bug
          Components: YARN Client
    Affects Versions: 0.10
            Reporter: Fabian Hueske
            Priority: Critical
             Fix For: 0.10


When running a Flink program on a detached YARN session using the latest master (commit {{0b3ca57b41e09937b9e63f2f443834c8ad1cf497}}), I observed this {{OutOfMemoryError}}

{code}
java.lang.Exception: The data preparation for task 'CoGroup (coGroup-A68B765B7BAB4E29BF6816965A994776)' , caused an error: Error obtaining the sorted input: Thread 'SortMerger Reading Thread' terminated due to an exception: java.lang.OutOfMemoryError: Direct buffer memory
	at org.apache.flink.runtime.operators.RegularPactTask.run(RegularPactTask.java:464)
	at org.apache.flink.runtime.operators.RegularPactTask.invoke(RegularPactTask.java:354)
	at org.apache.flink.runtime.taskmanager.Task.run(Task.java:579)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.RuntimeException: Error obtaining the sorted input: Thread 'SortMerger Reading Thread' terminated due to an exception: java.lang.OutOfMemoryError: Direct buffer memory
	at org.apache.flink.runtime.operators.sort.UnilateralSortMerger.getIterator(UnilateralSortMerger.java:607)
	at org.apache.flink.runtime.operators.RegularPactTask.getInput(RegularPactTask.java:1089)
	at org.apache.flink.runtime.operators.CoGroupDriver.prepare(CoGroupDriver.java:97)
	at org.apache.flink.runtime.operators.RegularPactTask.run(RegularPactTask.java:459)
	... 3 more
Caused by: java.io.IOException: Thread 'SortMerger Reading Thread' terminated due to an exception: java.lang.OutOfMemoryError: Direct buffer memory
	at org.apache.flink.runtime.operators.sort.UnilateralSortMerger$ThreadBase.run(UnilateralSortMerger.java:787)
Caused by: org.apache.flink.runtime.io.network.netty.exception.LocalTransportException: java.lang.OutOfMemoryError: Direct buffer memory
	at org.apache.flink.runtime.io.network.netty.PartitionRequestClientHandler.exceptionCaught(PartitionRequestClientHandler.java:153)
	at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:246)
	at io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:224)
	at io.netty.channel.ChannelInboundHandlerAdapter.exceptionCaught(ChannelInboundHandlerAdapter.java:131)
	at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:246)
	at io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:224)
	at io.netty.channel.ChannelInboundHandlerAdapter.exceptionCaught(ChannelInboundHandlerAdapter.java:131)
	at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:246)
	at io.netty.channel.AbstractChannelHandlerContext.notifyHandlerException(AbstractChannelHandlerContext.java:737)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:310)
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294)
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:846)
	at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:112)
	at java.lang.Thread.run(Thread.java:745)
Caused by: io.netty.handler.codec.DecoderException: java.lang.OutOfMemoryError: Direct buffer memory
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:234)
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308)
	... 9 more
Caused by: java.lang.OutOfMemoryError: Direct buffer memory
	at java.nio.Bits.reserveMemory(Bits.java:658)
	at java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:123)
	at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:306)
	at io.netty.buffer.UnpooledUnsafeDirectByteBuf.allocateDirect(UnpooledUnsafeDirectByteBuf.java:108)
	at io.netty.buffer.UnpooledUnsafeDirectByteBuf.capacity(UnpooledUnsafeDirectByteBuf.java:157)
	at io.netty.buffer.AbstractByteBuf.ensureWritable(AbstractByteBuf.java:251)
	at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:849)
	at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:841)
	at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:831)
	at io.netty.handler.codec.ByteToMessageDecoder$1.cumulate(ByteToMessageDecoder.java:92)
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:228)
	... 10 more
{code}

Since I know, that this feature was properly working recently, I reverted to commit {{8ca853e0f6c18be8e6b066c6ec0f23badb797323}} and the problem was gone.
The problem might have been introduced when adding offheap memory support for YARN (commit {{93c95b6a6f150a2c55dc387e4ef1d603b3ef3f22}}).



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