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From git-site-r...@apache.org
Subject [15/51] [partial] hbase-site git commit: Published site at .
Date Thu, 30 Nov 2017 15:18:54 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/713d773f/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/FanOutOneBlockAsyncDFSOutput.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/FanOutOneBlockAsyncDFSOutput.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/FanOutOneBlockAsyncDFSOutput.html
index de6cb11..dd54dd2 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/FanOutOneBlockAsyncDFSOutput.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/FanOutOneBlockAsyncDFSOutput.html
@@ -25,563 +25,558 @@
 <span class="sourceLineNo">017</span> */<a name="line.17"></a>
 <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.io.asyncfs;<a name="line.18"></a>
 <span class="sourceLineNo">019</span><a name="line.19"></a>
-<span class="sourceLineNo">020</span>import static org.apache.hadoop.hbase.shaded.io.netty.handler.timeout.IdleState.READER_IDLE;<a name="line.20"></a>
-<span class="sourceLineNo">021</span>import static org.apache.hadoop.hbase.shaded.io.netty.handler.timeout.IdleState.WRITER_IDLE;<a name="line.21"></a>
-<span class="sourceLineNo">022</span>import static org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper.HEART_BEAT_SEQNO;<a name="line.22"></a>
-<span class="sourceLineNo">023</span>import static org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper.READ_TIMEOUT;<a name="line.23"></a>
-<span class="sourceLineNo">024</span>import static org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper.completeFile;<a name="line.24"></a>
-<span class="sourceLineNo">025</span>import static org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper.endFileLease;<a name="line.25"></a>
-<span class="sourceLineNo">026</span>import static org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper.getStatus;<a name="line.26"></a>
+<span class="sourceLineNo">020</span>import static org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper.HEART_BEAT_SEQNO;<a name="line.20"></a>
+<span class="sourceLineNo">021</span>import static org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper.READ_TIMEOUT;<a name="line.21"></a>
+<span class="sourceLineNo">022</span>import static org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper.completeFile;<a name="line.22"></a>
+<span class="sourceLineNo">023</span>import static org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper.endFileLease;<a name="line.23"></a>
+<span class="sourceLineNo">024</span>import static org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper.getStatus;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import static org.apache.hadoop.hbase.shaded.io.netty.handler.timeout.IdleState.READER_IDLE;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import static org.apache.hadoop.hbase.shaded.io.netty.handler.timeout.IdleState.WRITER_IDLE;<a name="line.26"></a>
 <span class="sourceLineNo">027</span>import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_CLIENT_SOCKET_TIMEOUT_KEY;<a name="line.27"></a>
 <span class="sourceLineNo">028</span><a name="line.28"></a>
-<span class="sourceLineNo">029</span><a name="line.29"></a>
-<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.shaded.io.netty.buffer.ByteBuf;<a name="line.30"></a>
-<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.shaded.io.netty.buffer.ByteBufAllocator;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.shaded.io.netty.channel.Channel;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.shaded.io.netty.channel.ChannelHandler.Sharable;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.shaded.io.netty.channel.ChannelHandlerContext;<a name="line.34"></a>
-<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.shaded.io.netty.channel.EventLoop;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.shaded.io.netty.channel.SimpleChannelInboundHandler;<a name="line.36"></a>
-<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.shaded.io.netty.handler.codec.protobuf.ProtobufDecoder;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.shaded.io.netty.handler.codec.protobuf.ProtobufVarint32FrameDecoder;<a name="line.38"></a>
-<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.shaded.io.netty.handler.timeout.IdleStateEvent;<a name="line.39"></a>
-<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.shaded.io.netty.handler.timeout.IdleStateHandler;<a name="line.40"></a>
-<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.shaded.io.netty.util.concurrent.Future;<a name="line.41"></a>
-<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.shaded.io.netty.util.concurrent.Promise;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.shaded.io.netty.util.concurrent.PromiseCombiner;<a name="line.43"></a>
-<span class="sourceLineNo">044</span><a name="line.44"></a>
-<span class="sourceLineNo">045</span>import java.io.IOException;<a name="line.45"></a>
-<span class="sourceLineNo">046</span>import java.nio.ByteBuffer;<a name="line.46"></a>
-<span class="sourceLineNo">047</span>import java.util.ArrayDeque;<a name="line.47"></a>
-<span class="sourceLineNo">048</span>import java.util.Collection;<a name="line.48"></a>
-<span class="sourceLineNo">049</span>import java.util.Collections;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>import java.util.Deque;<a name="line.50"></a>
-<span class="sourceLineNo">051</span>import java.util.IdentityHashMap;<a name="line.51"></a>
-<span class="sourceLineNo">052</span>import java.util.List;<a name="line.52"></a>
-<span class="sourceLineNo">053</span>import java.util.Set;<a name="line.53"></a>
-<span class="sourceLineNo">054</span>import java.util.concurrent.CompletableFuture;<a name="line.54"></a>
-<span class="sourceLineNo">055</span>import java.util.concurrent.TimeUnit;<a name="line.55"></a>
-<span class="sourceLineNo">056</span>import java.util.function.Supplier;<a name="line.56"></a>
-<span class="sourceLineNo">057</span><a name="line.57"></a>
-<span class="sourceLineNo">058</span>import org.apache.hadoop.conf.Configuration;<a name="line.58"></a>
-<span class="sourceLineNo">059</span>import org.apache.hadoop.crypto.Encryptor;<a name="line.59"></a>
-<span class="sourceLineNo">060</span>import org.apache.hadoop.fs.Path;<a name="line.60"></a>
+<span class="sourceLineNo">029</span>import java.io.IOException;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import java.io.InterruptedIOException;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import java.nio.ByteBuffer;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import java.util.Collection;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import java.util.Collections;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import java.util.Iterator;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import java.util.List;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import java.util.Set;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import java.util.concurrent.CompletableFuture;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import java.util.concurrent.ConcurrentLinkedDeque;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import java.util.concurrent.ExecutionException;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import java.util.concurrent.TimeUnit;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import java.util.function.Supplier;<a name="line.42"></a>
+<span class="sourceLineNo">043</span><a name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.apache.hadoop.conf.Configuration;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.apache.hadoop.crypto.Encryptor;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.apache.hadoop.fs.Path;<a name="line.46"></a>
+<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper.CancelOnClose;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.util.CancelableProgressable;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import org.apache.hadoop.hdfs.DFSClient;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.apache.hadoop.hdfs.DistributedFileSystem;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import org.apache.hadoop.hdfs.protocol.ClientProtocol;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import org.apache.hadoop.hdfs.protocol.DatanodeInfo;<a name="line.53"></a>
+<span class="sourceLineNo">054</span>import org.apache.hadoop.hdfs.protocol.ExtendedBlock;<a name="line.54"></a>
+<span class="sourceLineNo">055</span>import org.apache.hadoop.hdfs.protocol.LocatedBlock;<a name="line.55"></a>
+<span class="sourceLineNo">056</span>import org.apache.hadoop.hdfs.protocol.datatransfer.PacketHeader;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>import org.apache.hadoop.hdfs.protocol.datatransfer.PipelineAck;<a name="line.57"></a>
+<span class="sourceLineNo">058</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.PipelineAckProto;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.Status;<a name="line.59"></a>
+<span class="sourceLineNo">060</span>import org.apache.hadoop.util.DataChecksum;<a name="line.60"></a>
 <span class="sourceLineNo">061</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.61"></a>
-<span class="sourceLineNo">062</span>import org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper.CancelOnClose;<a name="line.62"></a>
-<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.util.CancelableProgressable;<a name="line.63"></a>
-<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.64"></a>
-<span class="sourceLineNo">065</span>import org.apache.hadoop.hdfs.DFSClient;<a name="line.65"></a>
-<span class="sourceLineNo">066</span>import org.apache.hadoop.hdfs.DistributedFileSystem;<a name="line.66"></a>
-<span class="sourceLineNo">067</span>import org.apache.hadoop.hdfs.protocol.ClientProtocol;<a name="line.67"></a>
-<span class="sourceLineNo">068</span>import org.apache.hadoop.hdfs.protocol.DatanodeInfo;<a name="line.68"></a>
-<span class="sourceLineNo">069</span>import org.apache.hadoop.hdfs.protocol.LocatedBlock;<a name="line.69"></a>
-<span class="sourceLineNo">070</span>import org.apache.hadoop.hdfs.protocol.datatransfer.PacketHeader;<a name="line.70"></a>
-<span class="sourceLineNo">071</span>import org.apache.hadoop.hdfs.protocol.datatransfer.PipelineAck;<a name="line.71"></a>
-<span class="sourceLineNo">072</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.PipelineAckProto;<a name="line.72"></a>
-<span class="sourceLineNo">073</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.Status;<a name="line.73"></a>
-<span class="sourceLineNo">074</span>import org.apache.hadoop.util.DataChecksum;<a name="line.74"></a>
-<span class="sourceLineNo">075</span><a name="line.75"></a>
-<span class="sourceLineNo">076</span>import org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a name="line.76"></a>
-<span class="sourceLineNo">077</span><a name="line.77"></a>
-<span class="sourceLineNo">078</span>/**<a name="line.78"></a>
-<span class="sourceLineNo">079</span> * An asynchronous HDFS output stream implementation which fans out data to datanode and only<a name="line.79"></a>
-<span class="sourceLineNo">080</span> * supports writing file with only one block.<a name="line.80"></a>
-<span class="sourceLineNo">081</span> * &lt;p&gt;<a name="line.81"></a>
-<span class="sourceLineNo">082</span> * Use the createOutput method in {@link FanOutOneBlockAsyncDFSOutputHelper} to create. The mainly<a name="line.82"></a>
-<span class="sourceLineNo">083</span> * usage of this class is implementing WAL, so we only expose a little HDFS configurations in the<a name="line.83"></a>
-<span class="sourceLineNo">084</span> * method. And we place it here under util package because we want to make it independent of WAL<a name="line.84"></a>
-<span class="sourceLineNo">085</span> * implementation thus easier to move it to HDFS project finally.<a name="line.85"></a>
-<span class="sourceLineNo">086</span> * &lt;p&gt;<a name="line.86"></a>
-<span class="sourceLineNo">087</span> * Note that, all connections to datanode will run in the same {@link EventLoop} which means we only<a name="line.87"></a>
-<span class="sourceLineNo">088</span> * need one thread here. But be careful, we do some blocking operations in {@link #close()} and<a name="line.88"></a>
-<span class="sourceLineNo">089</span> * {@link #recoverAndClose(CancelableProgressable)} methods, so do not call them inside<a name="line.89"></a>
-<span class="sourceLineNo">090</span> * {@link EventLoop}. And for {@link #write(byte[])} {@link #write(byte[], int, int)},<a name="line.90"></a>
-<span class="sourceLineNo">091</span> * {@link #buffered()} and {@link #flush(boolean)}, if you call them outside {@link EventLoop},<a name="line.91"></a>
-<span class="sourceLineNo">092</span> * there will be an extra context-switch.<a name="line.92"></a>
-<span class="sourceLineNo">093</span> * &lt;p&gt;<a name="line.93"></a>
-<span class="sourceLineNo">094</span> * Advantages compare to DFSOutputStream:<a name="line.94"></a>
-<span class="sourceLineNo">095</span> * &lt;ol&gt;<a name="line.95"></a>
-<span class="sourceLineNo">096</span> * &lt;li&gt;The fan out mechanism. This will reduce the latency.&lt;/li&gt;<a name="line.96"></a>
-<span class="sourceLineNo">097</span> * &lt;li&gt;The asynchronous WAL could also run in the same EventLoop, we could just call write and flush<a name="line.97"></a>
-<span class="sourceLineNo">098</span> * inside the EventLoop thread, so generally we only have one thread to do all the things.&lt;/li&gt;<a name="line.98"></a>
-<span class="sourceLineNo">099</span> * &lt;li&gt;Fail-fast when connection to datanode error. The WAL implementation could open new writer<a name="line.99"></a>
-<span class="sourceLineNo">100</span> * ASAP.&lt;/li&gt;<a name="line.100"></a>
-<span class="sourceLineNo">101</span> * &lt;li&gt;We could benefit from netty's ByteBuf management mechanism.&lt;/li&gt;<a name="line.101"></a>
-<span class="sourceLineNo">102</span> * &lt;/ol&gt;<a name="line.102"></a>
-<span class="sourceLineNo">103</span> */<a name="line.103"></a>
-<span class="sourceLineNo">104</span>@InterfaceAudience.Private<a name="line.104"></a>
-<span class="sourceLineNo">105</span>public class FanOutOneBlockAsyncDFSOutput implements AsyncFSOutput {<a name="line.105"></a>
+<span class="sourceLineNo">062</span><a name="line.62"></a>
+<span class="sourceLineNo">063</span>import org.apache.hadoop.hbase.shaded.com.google.common.base.Preconditions;<a name="line.63"></a>
+<span class="sourceLineNo">064</span>import org.apache.hadoop.hbase.shaded.com.google.common.base.Throwables;<a name="line.64"></a>
+<span class="sourceLineNo">065</span>import org.apache.hadoop.hbase.shaded.io.netty.buffer.ByteBuf;<a name="line.65"></a>
+<span class="sourceLineNo">066</span>import org.apache.hadoop.hbase.shaded.io.netty.buffer.ByteBufAllocator;<a name="line.66"></a>
+<span class="sourceLineNo">067</span>import org.apache.hadoop.hbase.shaded.io.netty.channel.Channel;<a name="line.67"></a>
+<span class="sourceLineNo">068</span>import org.apache.hadoop.hbase.shaded.io.netty.channel.ChannelHandler.Sharable;<a name="line.68"></a>
+<span class="sourceLineNo">069</span>import org.apache.hadoop.hbase.shaded.io.netty.channel.ChannelHandlerContext;<a name="line.69"></a>
+<span class="sourceLineNo">070</span>import org.apache.hadoop.hbase.shaded.io.netty.channel.ChannelId;<a name="line.70"></a>
+<span class="sourceLineNo">071</span>import org.apache.hadoop.hbase.shaded.io.netty.channel.SimpleChannelInboundHandler;<a name="line.71"></a>
+<span class="sourceLineNo">072</span>import org.apache.hadoop.hbase.shaded.io.netty.handler.codec.protobuf.ProtobufDecoder;<a name="line.72"></a>
+<span class="sourceLineNo">073</span>import org.apache.hadoop.hbase.shaded.io.netty.handler.codec.protobuf.ProtobufVarint32FrameDecoder;<a name="line.73"></a>
+<span class="sourceLineNo">074</span>import org.apache.hadoop.hbase.shaded.io.netty.handler.timeout.IdleStateEvent;<a name="line.74"></a>
+<span class="sourceLineNo">075</span>import org.apache.hadoop.hbase.shaded.io.netty.handler.timeout.IdleStateHandler;<a name="line.75"></a>
+<span class="sourceLineNo">076</span><a name="line.76"></a>
+<span class="sourceLineNo">077</span>/**<a name="line.77"></a>
+<span class="sourceLineNo">078</span> * An asynchronous HDFS output stream implementation which fans out data to datanode and only<a name="line.78"></a>
+<span class="sourceLineNo">079</span> * supports writing file with only one block.<a name="line.79"></a>
+<span class="sourceLineNo">080</span> * &lt;p&gt;<a name="line.80"></a>
+<span class="sourceLineNo">081</span> * Use the createOutput method in {@link FanOutOneBlockAsyncDFSOutputHelper} to create. The mainly<a name="line.81"></a>
+<span class="sourceLineNo">082</span> * usage of this class is implementing WAL, so we only expose a little HDFS configurations in the<a name="line.82"></a>
+<span class="sourceLineNo">083</span> * method. And we place it here under io package because we want to make it independent of WAL<a name="line.83"></a>
+<span class="sourceLineNo">084</span> * implementation thus easier to move it to HDFS project finally.<a name="line.84"></a>
+<span class="sourceLineNo">085</span> * &lt;p&gt;<a name="line.85"></a>
+<span class="sourceLineNo">086</span> * Note that, although we support pipelined flush, i.e, write new data and then flush before the<a name="line.86"></a>
+<span class="sourceLineNo">087</span> * previous flush succeeds, the implementation is not thread safe, so you should not call its<a name="line.87"></a>
+<span class="sourceLineNo">088</span> * methods concurrently.<a name="line.88"></a>
+<span class="sourceLineNo">089</span> * &lt;p&gt;<a name="line.89"></a>
+<span class="sourceLineNo">090</span> * Advantages compare to DFSOutputStream:<a name="line.90"></a>
+<span class="sourceLineNo">091</span> * &lt;ol&gt;<a name="line.91"></a>
+<span class="sourceLineNo">092</span> * &lt;li&gt;The fan out mechanism. This will reduce the latency.&lt;/li&gt;<a name="line.92"></a>
+<span class="sourceLineNo">093</span> * &lt;li&gt;Fail-fast when connection to datanode error. The WAL implementation could open new writer<a name="line.93"></a>
+<span class="sourceLineNo">094</span> * ASAP.&lt;/li&gt;<a name="line.94"></a>
+<span class="sourceLineNo">095</span> * &lt;li&gt;We could benefit from netty's ByteBuf management mechanism.&lt;/li&gt;<a name="line.95"></a>
+<span class="sourceLineNo">096</span> * &lt;/ol&gt;<a name="line.96"></a>
+<span class="sourceLineNo">097</span> */<a name="line.97"></a>
+<span class="sourceLineNo">098</span>@InterfaceAudience.Private<a name="line.98"></a>
+<span class="sourceLineNo">099</span>public class FanOutOneBlockAsyncDFSOutput implements AsyncFSOutput {<a name="line.99"></a>
+<span class="sourceLineNo">100</span><a name="line.100"></a>
+<span class="sourceLineNo">101</span>  // The MAX_PACKET_SIZE is 16MB but it include the header size and checksum size. So here we set a<a name="line.101"></a>
+<span class="sourceLineNo">102</span>  // smaller limit for data size.<a name="line.102"></a>
+<span class="sourceLineNo">103</span>  private static final int MAX_DATA_LEN = 12 * 1024 * 1024;<a name="line.103"></a>
+<span class="sourceLineNo">104</span><a name="line.104"></a>
+<span class="sourceLineNo">105</span>  private final Configuration conf;<a name="line.105"></a>
 <span class="sourceLineNo">106</span><a name="line.106"></a>
-<span class="sourceLineNo">107</span>  // The MAX_PACKET_SIZE is 16MB but it include the header size and checksum size. So here we set a<a name="line.107"></a>
-<span class="sourceLineNo">108</span>  // smaller limit for data size.<a name="line.108"></a>
-<span class="sourceLineNo">109</span>  private static final int MAX_DATA_LEN = 12 * 1024 * 1024;<a name="line.109"></a>
+<span class="sourceLineNo">107</span>  private final FSUtils fsUtils;<a name="line.107"></a>
+<span class="sourceLineNo">108</span><a name="line.108"></a>
+<span class="sourceLineNo">109</span>  private final DistributedFileSystem dfs;<a name="line.109"></a>
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-<span class="sourceLineNo">111</span>  private final Configuration conf;<a name="line.111"></a>
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-<span class="sourceLineNo">113</span>  private final FSUtils fsUtils;<a name="line.113"></a>
+<span class="sourceLineNo">113</span>  private final ClientProtocol namenode;<a name="line.113"></a>
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-<span class="sourceLineNo">115</span>  private final DistributedFileSystem dfs;<a name="line.115"></a>
+<span class="sourceLineNo">115</span>  private final String clientName;<a name="line.115"></a>
 <span class="sourceLineNo">116</span><a name="line.116"></a>
-<span class="sourceLineNo">117</span>  private final DFSClient client;<a name="line.117"></a>
+<span class="sourceLineNo">117</span>  private final String src;<a name="line.117"></a>
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-<span class="sourceLineNo">119</span>  private final ClientProtocol namenode;<a name="line.119"></a>
+<span class="sourceLineNo">119</span>  private final long fileId;<a name="line.119"></a>
 <span class="sourceLineNo">120</span><a name="line.120"></a>
-<span class="sourceLineNo">121</span>  private final String clientName;<a name="line.121"></a>
+<span class="sourceLineNo">121</span>  private final ExtendedBlock block;<a name="line.121"></a>
 <span class="sourceLineNo">122</span><a name="line.122"></a>
-<span class="sourceLineNo">123</span>  private final String src;<a name="line.123"></a>
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+<span class="sourceLineNo">334</span>    this.fsUtils = fsUtils;<a name="line.334"></a>
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+<span class="sourceLineNo">339</span>    this.clientName = clientName;<a name="line.339"></a>
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+<span class="sourceLineNo">341</span>    this.block = locatedBlock.getBlock();<a name="line.341"></a>
+<span class="sourceLineNo">342</span>    this.locations = locatedBlock.getLocations();<a name="line.342"></a>
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+<span class="sourceLineNo">345</span>    this.summer = summer;<a name="line.345"></a>
+<span class="sourceLineNo">346</span>    this.maxDataLen = MAX_DATA_LEN - (MAX_DATA_LEN % summer.getBytesPerChecksum());<a name="line.346"></a>
+<span class="sourceLineNo">347</span>    this.alloc = alloc;<a name="line.347"></a>
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+<span class="sourceLineNo">349</span>    this.state = State.STREAMING;<a name="line.349"></a>
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+<span class="sourceLineNo">352</span><a name="line.352"></a>
+<span class="sourceLineNo">353</span>  @Override<a name="line.353"></a>
+<span class="sourceLineNo">354</span>  public void writeInt(int i) {<a name="line.354"></a>
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+<span class="sourceLineNo">356</span>    buf.writeInt(i);<a name="line.356"></a>
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+<span class="sourceLineNo">358</span><a name="line.358"></a>
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+<span class="sourceLineNo">360</span>  public void write(ByteBuffer bb) {<a name="line.360"></a>
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+<span class="sourceLineNo">362</span>    buf.writeBytes(bb);<a name="line.362"></a>
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+<span class="sourceLineNo">364</span><a name="line.364"></a>
+<span class="sourceLineNo">365</span>  @Override<a name="line.365"></a>
+<span class="sourceLineNo">366</span>  public void write(byte[] b) {<a name="line.366"></a>
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+<span class="sourceLineNo">368</span>  }<a name="line.368"></a>
+<span class="sourceLineNo">369</span><a name="line.369"></a>
+<span class="sourceLineNo">370</span>  @Override<a name="line.370"></a>
+<span class="sourceLineNo">371</span>  public void write(byte[] b, int off, int len) {<a name="line.371"></a>
+<span class="sourceLineNo">372</span>    buf.ensureWritable(len);<a name="line.372"></a>
+<span class="sourceLineNo">373</span>    buf.writeBytes(b, off, len);<a name="line.373"></a>
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+<span class="sourceLineNo">375</span><a name="line.375"></a>
+<span class="sourceLineNo">376</span>  @Override<a name="line.376"></a>
+<span class="sourceLineNo">377</span>  public int buffered() {<a name="line.377"></a>
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+<span class="sourceLineNo">380</span><a name="line.380"></a>
+<span class="sourceLineNo">381</span>  @Override<a name="line.381"></a>
+<span class="sourceLineNo">382</span>  public DatanodeInfo[] getPipeline() {<a name="line.382"></a>
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+<span class="sourceLineNo">384</span>  }<a name="line.384"></a>
+<span class="sourceLineNo">385</span><a name="line.385"></a>
+<span class="sourceLineNo">386</span>  private void flushBuffer(CompletableFuture&lt;Long&gt; future, ByteBuf dataBuf,<a name="line.386"></a>
+<span class="sourceLineNo">387</span>      long nextPacketOffsetInBlock, boolean syncBlock) {<a name="line.387"></a>
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+<span class="sourceLineNo">390</span>    int trailingPartialChunkLen = dataLen % chunkLen;<a name="line.390"></a>
+<span class="sourceLineNo">391</span>    int numChecks = dataLen / chunkLen + (trailingPartialChunkLen != 0 ? 1 : 0);<a name="line.391"></a>
+<span class="sourceLineNo">392</span>    int checksumLen = numChecks * summer.getChecksumSize();<a name="line.392"></a>
+<span class="sourceLineNo">393</span>    ByteBuf checksumBuf = alloc.directBuffer(checksumLen);<a name="line.393"></a>
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+<span class="sourceLineNo">396</span>    PacketHeader header = new PacketHeader(4 + checksumLen + dataLen, nextPacketOffsetInBlock,<a name="line.396"></a>
+<span class="sourceLineNo">397</span>        nextPacketSe

<TRUNCATED>

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