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From Achuth Raghavendra <acr...@microsoft.com.INVALID>
Subject Unexpected exception from downstream while disposing evaluator.
Date Sun, 16 Jul 2017 03:22:26 GMT
I see exceptions while disposing a evaluator when a Task is complete. is this expected ?.

/// <summary>
        /// Called when [next].
        /// </summary>
        /// <param name="value">The value.</param>
        public void OnNext(ICompletedTask value)
        {
....
            value.ActiveContext.Dispose(); // this will dispose the evaluator.
        }


INFO: Unexpected exception from downstream. channel: [id: 0x6075988d, /100.96.37.97:56404
=> /100.96.14.37:2014] local: /100.96.14.37:2014 remote: /100.96.37.97:56404
Jul 15, 2017 8:11:34 PM org.apache.reef.wake.remote.transport.netty.NettyChannelHandler exceptionCaught
WARNING: Unexpected exception from downstream.
java.io.IOException: An existing connection was forcibly closed by the remote host
                at sun.nio.ch.SocketDispatcher.read0(Native Method)
                at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:43)
                at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223)
                at sun.nio.ch.IOUtil.read(IOUtil.java:192)
                at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:379)
                at io.netty.buffer.UnpooledUnsafeDirectByteBuf.setBytes(UnpooledUnsafeDirectByteBuf.java:446)
                at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:879)
                at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:225)
                at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:114)
                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:116)
                at java.lang.Thread.run(Thread.java:745)

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