http://git-wip-us.apache.org/repos/asf/hbase-site/blob/0821e51a/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/AsyncFSOutput.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/AsyncFSOutput.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/AsyncFSOutput.html index bca52d7..9eea520 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/AsyncFSOutput.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/AsyncFSOutput.html @@ -28,70 +28,69 @@ <span class="sourceLineNo">020</span>import java.io.Closeable;<a name="line.20"></a> <span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a> <span class="sourceLineNo">022</span>import java.nio.ByteBuffer;<a name="line.22"></a> -<span class="sourceLineNo">023</span>import java.nio.channels.CompletionHandler;<a name="line.23"></a> -<span class="sourceLineNo">024</span>import java.util.concurrent.CompletableFuture;<a name="line.24"></a> -<span class="sourceLineNo">025</span><a name="line.25"></a> -<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.26"></a> -<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.util.CancelableProgressable;<a name="line.27"></a> -<span class="sourceLineNo">028</span>import org.apache.hadoop.hdfs.protocol.DatanodeInfo;<a name="line.28"></a> -<span class="sourceLineNo">029</span><a name="line.29"></a> -<span class="sourceLineNo">030</span>/**<a name="line.30"></a> -<span class="sourceLineNo">031</span> * Interface for asynchronous filesystem output stream.<a name="line.31"></a> -<span class="sourceLineNo">032</span> */<a name="line.32"></a> -<span class="sourceLineNo">033</span>@InterfaceAudience.Private<a name="line.33"></a> -<span class="sourceLineNo">034</span>public interface AsyncFSOutput extends Closeable {<a name="line.34"></a> -<span class="sourceLineNo">035</span><a name="line.35"></a> -<span class="sourceLineNo">036</span> /**<a name="line.36"></a> -<span class="sourceLineNo">037</span> * Just call write(b, 0, b.length).<a name="line.37"></a> -<span class="sourceLineNo">038</span> * @see #write(byte[], int, int)<a name="line.38"></a> -<span class="sourceLineNo">039</span> */<a name="line.39"></a> -<span class="sourceLineNo">040</span> void write(byte[] b);<a name="line.40"></a> -<span class="sourceLineNo">041</span><a name="line.41"></a> -<span class="sourceLineNo">042</span> /**<a name="line.42"></a> -<span class="sourceLineNo">043</span> * Copy the data into the buffer. Note that you need to call {@link #flush(boolean)} to flush the<a name="line.43"></a> -<span class="sourceLineNo">044</span> * buffer manually.<a name="line.44"></a> -<span class="sourceLineNo">045</span> */<a name="line.45"></a> -<span class="sourceLineNo">046</span> void write(byte[] b, int off, int len);<a name="line.46"></a> -<span class="sourceLineNo">047</span><a name="line.47"></a> -<span class="sourceLineNo">048</span> /**<a name="line.48"></a> -<span class="sourceLineNo">049</span> * Write an int to the buffer.<a name="line.49"></a> -<span class="sourceLineNo">050</span> */<a name="line.50"></a> -<span class="sourceLineNo">051</span> void writeInt(int i);<a name="line.51"></a> -<span class="sourceLineNo">052</span><a name="line.52"></a> -<span class="sourceLineNo">053</span> /**<a name="line.53"></a> -<span class="sourceLineNo">054</span> * Copy the data in the given {@code bb} into the buffer.<a name="line.54"></a> -<span class="sourceLineNo">055</span> */<a name="line.55"></a> -<span class="sourceLineNo">056</span> void write(ByteBuffer bb);<a name="line.56"></a> -<span class="sourceLineNo">057</span><a name="line.57"></a> -<span class="sourceLineNo">058</span> /**<a name="line.58"></a> -<span class="sourceLineNo">059</span> * Return the current size of buffered data.<a name="line.59"></a> -<span class="sourceLineNo">060</span> */<a name="line.60"></a> -<span class="sourceLineNo">061</span> int buffered();<a name="line.61"></a> -<span class="sourceLineNo">062</span><a name="line.62"></a> -<span class="sourceLineNo">063</span> /**<a name="line.63"></a> -<span class="sourceLineNo">064</span> * Return current pipeline. Empty array if no pipeline.<a name="line.64"></a> -<span class="sourceLineNo">065</span> */<a name="line.65"></a> -<span class="sourceLineNo">066</span> DatanodeInfo[] getPipeline();<a name="line.66"></a> -<span class="sourceLineNo">067</span><a name="line.67"></a> -<span class="sourceLineNo">068</span> /**<a name="line.68"></a> -<span class="sourceLineNo">069</span> * Flush the buffer out.<a name="line.69"></a> -<span class="sourceLineNo">070</span> * @param sync persistent the data to device<a name="line.70"></a> -<span class="sourceLineNo">071</span> * @return A CompletableFuture that hold the acked length after flushing.<a name="line.71"></a> -<span class="sourceLineNo">072</span> */<a name="line.72"></a> -<span class="sourceLineNo">073</span> CompletableFuture<Long> flush(boolean sync);<a name="line.73"></a> -<span class="sourceLineNo">074</span><a name="line.74"></a> -<span class="sourceLineNo">075</span> /**<a name="line.75"></a> -<span class="sourceLineNo">076</span> * The close method when error occurred.<a name="line.76"></a> -<span class="sourceLineNo">077</span> */<a name="line.77"></a> -<span class="sourceLineNo">078</span> void recoverAndClose(CancelableProgressable reporter) throws IOException;<a name="line.78"></a> -<span class="sourceLineNo">079</span><a name="line.79"></a> -<span class="sourceLineNo">080</span> /**<a name="line.80"></a> -<span class="sourceLineNo">081</span> * Close the file. You should call {@link #recoverAndClose(CancelableProgressable)} if this method<a name="line.81"></a> -<span class="sourceLineNo">082</span> * throws an exception.<a name="line.82"></a> -<span class="sourceLineNo">083</span> */<a name="line.83"></a> -<span class="sourceLineNo">084</span> @Override<a name="line.84"></a> -<span class="sourceLineNo">085</span> void close() throws IOException;<a name="line.85"></a> -<span class="sourceLineNo">086</span>}<a name="line.86"></a> +<span class="sourceLineNo">023</span>import java.util.concurrent.CompletableFuture;<a name="line.23"></a> +<span class="sourceLineNo">024</span><a name="line.24"></a> +<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.25"></a> +<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.util.CancelableProgressable;<a name="line.26"></a> +<span class="sourceLineNo">027</span>import org.apache.hadoop.hdfs.protocol.DatanodeInfo;<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> * Interface for asynchronous filesystem output stream.<a name="line.30"></a> +<span class="sourceLineNo">031</span> */<a name="line.31"></a> +<span class="sourceLineNo">032</span>@InterfaceAudience.Private<a name="line.32"></a> +<span class="sourceLineNo">033</span>public interface AsyncFSOutput extends Closeable {<a name="line.33"></a> +<span class="sourceLineNo">034</span><a name="line.34"></a> +<span class="sourceLineNo">035</span> /**<a name="line.35"></a> +<span class="sourceLineNo">036</span> * Just call write(b, 0, b.length).<a name="line.36"></a> +<span class="sourceLineNo">037</span> * @see #write(byte[], int, int)<a name="line.37"></a> +<span class="sourceLineNo">038</span> */<a name="line.38"></a> +<span class="sourceLineNo">039</span> void write(byte[] b);<a name="line.39"></a> +<span class="sourceLineNo">040</span><a name="line.40"></a> +<span class="sourceLineNo">041</span> /**<a name="line.41"></a> +<span class="sourceLineNo">042</span> * Copy the data into the buffer. Note that you need to call {@link #flush(boolean)} to flush the<a name="line.42"></a> +<span class="sourceLineNo">043</span> * buffer manually.<a name="line.43"></a> +<span class="sourceLineNo">044</span> */<a name="line.44"></a> +<span class="sourceLineNo">045</span> void write(byte[] b, int off, int len);<a name="line.45"></a> +<span class="sourceLineNo">046</span><a name="line.46"></a> +<span class="sourceLineNo">047</span> /**<a name="line.47"></a> +<span class="sourceLineNo">048</span> * Write an int to the buffer.<a name="line.48"></a> +<span class="sourceLineNo">049</span> */<a name="line.49"></a> +<span class="sourceLineNo">050</span> void writeInt(int i);<a name="line.50"></a> +<span class="sourceLineNo">051</span><a name="line.51"></a> +<span class="sourceLineNo">052</span> /**<a name="line.52"></a> +<span class="sourceLineNo">053</span> * Copy the data in the given {@code bb} into the buffer.<a name="line.53"></a> +<span class="sourceLineNo">054</span> */<a name="line.54"></a> +<span class="sourceLineNo">055</span> void write(ByteBuffer bb);<a name="line.55"></a> +<span class="sourceLineNo">056</span><a name="line.56"></a> +<span class="sourceLineNo">057</span> /**<a name="line.57"></a> +<span class="sourceLineNo">058</span> * Return the current size of buffered data.<a name="line.58"></a> +<span class="sourceLineNo">059</span> */<a name="line.59"></a> +<span class="sourceLineNo">060</span> int buffered();<a name="line.60"></a> +<span class="sourceLineNo">061</span><a name="line.61"></a> +<span class="sourceLineNo">062</span> /**<a name="line.62"></a> +<span class="sourceLineNo">063</span> * Return current pipeline. Empty array if no pipeline.<a name="line.63"></a> +<span class="sourceLineNo">064</span> */<a name="line.64"></a> +<span class="sourceLineNo">065</span> DatanodeInfo[] getPipeline();<a name="line.65"></a> +<span class="sourceLineNo">066</span><a name="line.66"></a> +<span class="sourceLineNo">067</span> /**<a name="line.67"></a> +<span class="sourceLineNo">068</span> * Flush the buffer out.<a name="line.68"></a> +<span class="sourceLineNo">069</span> * @param sync persistent the data to device<a name="line.69"></a> +<span class="sourceLineNo">070</span> * @return A CompletableFuture that hold the acked length after flushing.<a name="line.70"></a> +<span class="sourceLineNo">071</span> */<a name="line.71"></a> +<span class="sourceLineNo">072</span> CompletableFuture<Long> flush(boolean sync);<a name="line.72"></a> +<span class="sourceLineNo">073</span><a name="line.73"></a> +<span class="sourceLineNo">074</span> /**<a name="line.74"></a> +<span class="sourceLineNo">075</span> * The close method when error occurred.<a name="line.75"></a> +<span class="sourceLineNo">076</span> */<a name="line.76"></a> +<span class="sourceLineNo">077</span> void recoverAndClose(CancelableProgressable reporter) throws IOException;<a name="line.77"></a> +<span class="sourceLineNo">078</span><a name="line.78"></a> +<span class="sourceLineNo">079</span> /**<a name="line.79"></a> +<span class="sourceLineNo">080</span> * Close the file. You should call {@link #recoverAndClose(CancelableProgressable)} if this method<a name="line.80"></a> +<span class="sourceLineNo">081</span> * throws an exception.<a name="line.81"></a> +<span class="sourceLineNo">082</span> */<a name="line.82"></a> +<span class="sourceLineNo">083</span> @Override<a name="line.83"></a> +<span class="sourceLineNo">084</span> void close() throws IOException;<a name="line.84"></a> +<span class="sourceLineNo">085</span>}<a name="line.85"></a>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/0821e51a/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/AsyncFSOutputHelper.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/AsyncFSOutputHelper.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/AsyncFSOutputHelper.html index e6485b5..5fb4dd3 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/AsyncFSOutputHelper.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/AsyncFSOutputHelper.html @@ -28,153 +28,154 @@ <span class="sourceLineNo">020</span>import com.google.common.base.Throwables;<a name="line.20"></a> <span class="sourceLineNo">021</span>import com.google.common.util.concurrent.ThreadFactoryBuilder;<a name="line.21"></a> <span class="sourceLineNo">022</span><a name="line.22"></a> -<span class="sourceLineNo">023</span>import io.netty.channel.EventLoop;<a name="line.23"></a> -<span class="sourceLineNo">024</span><a name="line.24"></a> -<span class="sourceLineNo">025</span>import java.io.IOException;<a name="line.25"></a> -<span class="sourceLineNo">026</span>import java.io.InterruptedIOException;<a name="line.26"></a> -<span class="sourceLineNo">027</span>import java.nio.ByteBuffer;<a name="line.27"></a> -<span class="sourceLineNo">028</span>import java.util.concurrent.CompletableFuture;<a name="line.28"></a> -<span class="sourceLineNo">029</span>import java.util.concurrent.ExecutionException;<a name="line.29"></a> -<span class="sourceLineNo">030</span>import java.util.concurrent.ExecutorService;<a name="line.30"></a> -<span class="sourceLineNo">031</span>import java.util.concurrent.Executors;<a name="line.31"></a> -<span class="sourceLineNo">032</span><a name="line.32"></a> -<span class="sourceLineNo">033</span>import org.apache.hadoop.fs.CommonConfigurationKeysPublic;<a name="line.33"></a> -<span class="sourceLineNo">034</span>import org.apache.hadoop.fs.FSDataOutputStream;<a name="line.34"></a> -<span class="sourceLineNo">035</span>import org.apache.hadoop.fs.FileSystem;<a name="line.35"></a> -<span class="sourceLineNo">036</span>import org.apache.hadoop.fs.Path;<a name="line.36"></a> -<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.37"></a> -<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.io.ByteArrayOutputStream;<a name="line.38"></a> -<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.util.CancelableProgressable;<a name="line.39"></a> -<span class="sourceLineNo">040</span>import org.apache.hadoop.hdfs.DistributedFileSystem;<a name="line.40"></a> -<span class="sourceLineNo">041</span>import org.apache.hadoop.hdfs.protocol.DatanodeInfo;<a name="line.41"></a> -<span class="sourceLineNo">042</span><a name="line.42"></a> -<span class="sourceLineNo">043</span>/**<a name="line.43"></a> -<span class="sourceLineNo">044</span> * Helper class for creating AsyncFSOutput.<a name="line.44"></a> -<span class="sourceLineNo">045</span> */<a name="line.45"></a> -<span class="sourceLineNo">046</span>@InterfaceAudience.Private<a name="line.46"></a> -<span class="sourceLineNo">047</span>public final class AsyncFSOutputHelper {<a name="line.47"></a> -<span class="sourceLineNo">048</span><a name="line.48"></a> -<span class="sourceLineNo">049</span> private AsyncFSOutputHelper() {<a name="line.49"></a> -<span class="sourceLineNo">050</span> }<a name="line.50"></a> -<span class="sourceLineNo">051</span><a name="line.51"></a> -<span class="sourceLineNo">052</span> /**<a name="line.52"></a> -<span class="sourceLineNo">053</span> * Create {@link FanOutOneBlockAsyncDFSOutput} for {@link DistributedFileSystem}, and a simple<a name="line.53"></a> -<span class="sourceLineNo">054</span> * implementation for other {@link FileSystem} which wraps around a {@link FSDataOutputStream}.<a name="line.54"></a> -<span class="sourceLineNo">055</span> */<a name="line.55"></a> -<span class="sourceLineNo">056</span> public static AsyncFSOutput createOutput(FileSystem fs, Path f, boolean overwrite,<a name="line.56"></a> -<span class="sourceLineNo">057</span> boolean createParent, short replication, long blockSize, final EventLoop eventLoop)<a name="line.57"></a> -<span class="sourceLineNo">058</span> throws IOException {<a name="line.58"></a> -<span class="sourceLineNo">059</span> if (fs instanceof DistributedFileSystem) {<a name="line.59"></a> -<span class="sourceLineNo">060</span> return FanOutOneBlockAsyncDFSOutputHelper.createOutput((DistributedFileSystem) fs, f,<a name="line.60"></a> -<span class="sourceLineNo">061</span> overwrite, createParent, replication, blockSize, eventLoop);<a name="line.61"></a> -<span class="sourceLineNo">062</span> }<a name="line.62"></a> -<span class="sourceLineNo">063</span> final FSDataOutputStream fsOut;<a name="line.63"></a> -<span class="sourceLineNo">064</span> int bufferSize = fs.getConf().getInt(CommonConfigurationKeysPublic.IO_FILE_BUFFER_SIZE_KEY,<a name="line.64"></a> -<span class="sourceLineNo">065</span> CommonConfigurationKeysPublic.IO_FILE_BUFFER_SIZE_DEFAULT);<a name="line.65"></a> -<span class="sourceLineNo">066</span> if (createParent) {<a name="line.66"></a> -<span class="sourceLineNo">067</span> fsOut = fs.create(f, overwrite, bufferSize, replication, blockSize, null);<a name="line.67"></a> -<span class="sourceLineNo">068</span> } else {<a name="line.68"></a> -<span class="sourceLineNo">069</span> fsOut = fs.createNonRecursive(f, overwrite, bufferSize, replication, blockSize, null);<a name="line.69"></a> -<span class="sourceLineNo">070</span> }<a name="line.70"></a> -<span class="sourceLineNo">071</span> final ExecutorService flushExecutor =<a name="line.71"></a> -<span class="sourceLineNo">072</span> Executors.newSingleThreadExecutor(new ThreadFactoryBuilder().setDaemon(true)<a name="line.72"></a> -<span class="sourceLineNo">073</span> .setNameFormat("AsyncFSOutputFlusher-" + f.toString().replace("%", "%%")).build());<a name="line.73"></a> -<span class="sourceLineNo">074</span> return new AsyncFSOutput() {<a name="line.74"></a> -<span class="sourceLineNo">075</span><a name="line.75"></a> -<span class="sourceLineNo">076</span> private final ByteArrayOutputStream out = new ByteArrayOutputStream();<a name="line.76"></a> -<span class="sourceLineNo">077</span><a name="line.77"></a> -<span class="sourceLineNo">078</span> @Override<a name="line.78"></a> -<span class="sourceLineNo">079</span> public void write(final byte[] b, final int off, final int len) {<a name="line.79"></a> -<span class="sourceLineNo">080</span> if (eventLoop.inEventLoop()) {<a name="line.80"></a> -<span class="sourceLineNo">081</span> out.write(b, off, len);<a name="line.81"></a> -<span class="sourceLineNo">082</span> } else {<a name="line.82"></a> -<span class="sourceLineNo">083</span> eventLoop.submit(() -> out.write(b, off, len)).syncUninterruptibly();<a name="line.83"></a> -<span class="sourceLineNo">084</span> }<a name="line.84"></a> -<span class="sourceLineNo">085</span> }<a name="line.85"></a> -<span class="sourceLineNo">086</span><a name="line.86"></a> -<span class="sourceLineNo">087</span> @Override<a name="line.87"></a> -<span class="sourceLineNo">088</span> public void write(byte[] b) {<a name="line.88"></a> -<span class="sourceLineNo">089</span> write(b, 0, b.length);<a name="line.89"></a> -<span class="sourceLineNo">090</span> }<a name="line.90"></a> -<span class="sourceLineNo">091</span><a name="line.91"></a> -<span class="sourceLineNo">092</span> @Override<a name="line.92"></a> -<span class="sourceLineNo">093</span> public void recoverAndClose(CancelableProgressable reporter) throws IOException {<a name="line.93"></a> -<span class="sourceLineNo">094</span> fsOut.close();<a name="line.94"></a> -<span class="sourceLineNo">095</span> }<a 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class="sourceLineNo">108</span> } catch (IOException e) {<a name="line.108"></a> -<span class="sourceLineNo">109</span> eventLoop.execute(() -> future.completeExceptionally(e));<a name="line.109"></a> -<span class="sourceLineNo">110</span> return;<a name="line.110"></a> -<span class="sourceLineNo">111</span> }<a name="line.111"></a> -<span class="sourceLineNo">112</span> try {<a name="line.112"></a> -<span class="sourceLineNo">113</span> if (sync) {<a name="line.113"></a> -<span class="sourceLineNo">114</span> fsOut.hsync();<a name="line.114"></a> -<span class="sourceLineNo">115</span> } else {<a name="line.115"></a> -<span class="sourceLineNo">116</span> fsOut.hflush();<a name="line.116"></a> -<span class="sourceLineNo">117</span> }<a name="line.117"></a> -<span class="sourceLineNo">118</span> long pos = fsOut.getPos();<a name="line.118"></a> -<span class="sourceLineNo">119</span> eventLoop.execute(() -> future.complete(pos));<a name="line.119"></a> -<span 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name="line.131"></a> -<span class="sourceLineNo">132</span> @Override<a name="line.132"></a> -<span class="sourceLineNo">133</span> public void close() throws IOException {<a name="line.133"></a> -<span class="sourceLineNo">134</span> try {<a name="line.134"></a> -<span class="sourceLineNo">135</span> flushExecutor.submit(() -> {<a name="line.135"></a> -<span class="sourceLineNo">136</span> synchronized (out) {<a name="line.136"></a> -<span class="sourceLineNo">137</span> fsOut.write(out.getBuffer(), 0, out.size());<a name="line.137"></a> -<span class="sourceLineNo">138</span> out.reset();<a name="line.138"></a> -<span class="sourceLineNo">139</span> }<a name="line.139"></a> -<span class="sourceLineNo">140</span> return null;<a name="line.140"></a> -<span class="sourceLineNo">141</span> }).get();<a name="line.141"></a> -<span class="sourceLineNo">142</span> } catch (InterruptedException e) {<a name="line.142"></a> -<span class="sourceLineNo">143</span> throw new InterruptedIOException();<a name="line.143"></a> -<span class="sourceLineNo">144</span> } catch (ExecutionException e) {<a name="line.144"></a> -<span class="sourceLineNo">145</span> Throwables.propagateIfPossible(e.getCause(), IOException.class);<a name="line.145"></a> -<span class="sourceLineNo">146</span> throw new IOException(e.getCause());<a name="line.146"></a> -<span class="sourceLineNo">147</span> } finally {<a name="line.147"></a> -<span class="sourceLineNo">148</span> flushExecutor.shutdown();<a name="line.148"></a> -<span class="sourceLineNo">149</span> }<a name="line.149"></a> -<span class="sourceLineNo">150</span> fsOut.close();<a name="line.150"></a> -<span class="sourceLineNo">151</span> }<a name="line.151"></a> -<span class="sourceLineNo">152</span><a name="line.152"></a> -<span class="sourceLineNo">153</span> @Override<a name="line.153"></a> -<span class="sourceLineNo">154</span> public int buffered() {<a name="line.154"></a> -<span class="sourceLineNo">155</span> return out.size();<a name="line.155"></a> -<span class="sourceLineNo">156</span> }<a name="line.156"></a> -<span class="sourceLineNo">157</span><a name="line.157"></a> -<span class="sourceLineNo">158</span> @Override<a name="line.158"></a> -<span class="sourceLineNo">159</span> public void writeInt(int i) {<a name="line.159"></a> -<span class="sourceLineNo">160</span> out.writeInt(i);<a name="line.160"></a> -<span class="sourceLineNo">161</span> }<a name="line.161"></a> -<span class="sourceLineNo">162</span><a name="line.162"></a> -<span class="sourceLineNo">163</span> @Override<a name="line.163"></a> -<span class="sourceLineNo">164</span> public void write(ByteBuffer bb) {<a name="line.164"></a> -<span class="sourceLineNo">165</span> out.write(bb, bb.position(), bb.remaining());<a name="line.165"></a> -<span class="sourceLineNo">166</span> }<a name="line.166"></a> -<span class="sourceLineNo">167</span> };<a name="line.167"></a> -<span class="sourceLineNo">168</span> }<a name="line.168"></a> -<span class="sourceLineNo">169</span>}<a name="line.169"></a> +<span class="sourceLineNo">023</span>import io.netty.channel.Channel;<a name="line.23"></a> +<span class="sourceLineNo">024</span>import io.netty.channel.EventLoop;<a name="line.24"></a> +<span class="sourceLineNo">025</span><a name="line.25"></a> +<span class="sourceLineNo">026</span>import java.io.IOException;<a name="line.26"></a> +<span class="sourceLineNo">027</span>import java.io.InterruptedIOException;<a name="line.27"></a> +<span class="sourceLineNo">028</span>import java.nio.ByteBuffer;<a name="line.28"></a> +<span class="sourceLineNo">029</span>import java.util.concurrent.CompletableFuture;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import java.util.concurrent.ExecutionException;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import java.util.concurrent.ExecutorService;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import java.util.concurrent.Executors;<a name="line.32"></a> +<span class="sourceLineNo">033</span><a name="line.33"></a> +<span class="sourceLineNo">034</span>import org.apache.hadoop.fs.CommonConfigurationKeysPublic;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.apache.hadoop.fs.FSDataOutputStream;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.apache.hadoop.fs.FileSystem;<a name="line.36"></a> +<span class="sourceLineNo">037</span>import org.apache.hadoop.fs.Path;<a name="line.37"></a> +<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.38"></a> +<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.io.ByteArrayOutputStream;<a name="line.39"></a> +<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.util.CancelableProgressable;<a name="line.40"></a> +<span class="sourceLineNo">041</span>import org.apache.hadoop.hdfs.DistributedFileSystem;<a name="line.41"></a> +<span class="sourceLineNo">042</span>import org.apache.hadoop.hdfs.protocol.DatanodeInfo;<a name="line.42"></a> +<span class="sourceLineNo">043</span><a name="line.43"></a> +<span class="sourceLineNo">044</span>/**<a name="line.44"></a> +<span class="sourceLineNo">045</span> * Helper class for creating AsyncFSOutput.<a name="line.45"></a> +<span class="sourceLineNo">046</span> */<a name="line.46"></a> +<span class="sourceLineNo">047</span>@InterfaceAudience.Private<a name="line.47"></a> +<span class="sourceLineNo">048</span>public final class AsyncFSOutputHelper {<a name="line.48"></a> +<span class="sourceLineNo">049</span><a name="line.49"></a> +<span class="sourceLineNo">050</span> private AsyncFSOutputHelper() {<a name="line.50"></a> +<span class="sourceLineNo">051</span> }<a name="line.51"></a> +<span class="sourceLineNo">052</span><a name="line.52"></a> +<span class="sourceLineNo">053</span> /**<a name="line.53"></a> +<span class="sourceLineNo">054</span> * Create {@link FanOutOneBlockAsyncDFSOutput} for {@link DistributedFileSystem}, and a simple<a name="line.54"></a> +<span class="sourceLineNo">055</span> * implementation for other {@link FileSystem} which wraps around a {@link FSDataOutputStream}.<a name="line.55"></a> +<span class="sourceLineNo">056</span> */<a name="line.56"></a> +<span class="sourceLineNo">057</span> public static AsyncFSOutput createOutput(FileSystem fs, Path f, boolean overwrite,<a name="line.57"></a> +<span class="sourceLineNo">058</span> boolean createParent, short replication, long blockSize, EventLoop eventLoop,<a name="line.58"></a> +<span class="sourceLineNo">059</span> Class<? extends Channel> channelClass) throws IOException {<a name="line.59"></a> +<span class="sourceLineNo">060</span> if (fs instanceof DistributedFileSystem) {<a name="line.60"></a> +<span class="sourceLineNo">061</span> return FanOutOneBlockAsyncDFSOutputHelper.createOutput((DistributedFileSystem) fs, f,<a name="line.61"></a> +<span class="sourceLineNo">062</span> overwrite, createParent, replication, blockSize, eventLoop, channelClass);<a name="line.62"></a> +<span class="sourceLineNo">063</span> }<a name="line.63"></a> +<span class="sourceLineNo">064</span> final FSDataOutputStream fsOut;<a name="line.64"></a> +<span class="sourceLineNo">065</span> int bufferSize = fs.getConf().getInt(CommonConfigurationKeysPublic.IO_FILE_BUFFER_SIZE_KEY,<a name="line.65"></a> +<span class="sourceLineNo">066</span> CommonConfigurationKeysPublic.IO_FILE_BUFFER_SIZE_DEFAULT);<a name="line.66"></a> +<span class="sourceLineNo">067</span> if (createParent) {<a name="line.67"></a> +<span class="sourceLineNo">068</span> fsOut = fs.create(f, overwrite, bufferSize, replication, blockSize, null);<a name="line.68"></a> +<span class="sourceLineNo">069</span> } else {<a name="line.69"></a> +<span class="sourceLineNo">070</span> fsOut = fs.createNonRecursive(f, overwrite, bufferSize, replication, blockSize, null);<a name="line.70"></a> +<span class="sourceLineNo">071</span> }<a name="line.71"></a> +<span class="sourceLineNo">072</span> final ExecutorService flushExecutor =<a name="line.72"></a> +<span class="sourceLineNo">073</span> Executors.newSingleThreadExecutor(new ThreadFactoryBuilder().setDaemon(true)<a name="line.73"></a> +<span class="sourceLineNo">074</span> .setNameFormat("AsyncFSOutputFlusher-" + f.toString().replace("%", "%%")).build());<a name="line.74"></a> +<span class="sourceLineNo">075</span> return new AsyncFSOutput() {<a name="line.75"></a> +<span class="sourceLineNo">076</span><a name="line.76"></a> +<span class="sourceLineNo">077</span> private final ByteArrayOutputStream out = new ByteArrayOutputStream();<a name="line.77"></a> +<span class="sourceLineNo">078</span><a name="line.78"></a> +<span class="sourceLineNo">079</span> @Override<a name="line.79"></a> +<span class="sourceLineNo">080</span> public void write(final byte[] b, final int off, final int len) {<a name="line.80"></a> +<span class="sourceLineNo">081</span> if (eventLoop.inEventLoop()) {<a name="line.81"></a> +<span class="sourceLineNo">082</span> out.write(b, off, len);<a name="line.82"></a> +<span class="sourceLineNo">083</span> } else {<a name="line.83"></a> +<span class="sourceLineNo">084</span> eventLoop.submit(() -> out.write(b, off, len)).syncUninterruptibly();<a name="line.84"></a> +<span class="sourceLineNo">085</span> }<a name="line.85"></a> +<span class="sourceLineNo">086</span> }<a name="line.86"></a> +<span class="sourceLineNo">087</span><a name="line.87"></a> +<span class="sourceLineNo">088</span> @Override<a name="line.88"></a> +<span class="sourceLineNo">089</span> public void write(byte[] b) {<a name="line.89"></a> +<span class="sourceLineNo">090</span> write(b, 0, b.length);<a name="line.90"></a> +<span class="sourceLineNo">091</span> }<a name="line.91"></a> +<span class="sourceLineNo">092</span><a name="line.92"></a> +<span class="sourceLineNo">093</span> @Override<a name="line.93"></a> +<span class="sourceLineNo">094</span> public void recoverAndClose(CancelableProgressable reporter) throws IOException {<a name="line.94"></a> +<span class="sourceLineNo">095</span> fsOut.close();<a name="line.95"></a> +<span class="sourceLineNo">096</span> }<a name="line.96"></a> +<span class="sourceLineNo">097</span><a name="line.97"></a> +<span class="sourceLineNo">098</span> @Override<a name="line.98"></a> +<span class="sourceLineNo">099</span> public DatanodeInfo[] getPipeline() {<a name="line.99"></a> +<span class="sourceLineNo">100</span> return new DatanodeInfo[0];<a name="line.100"></a> +<span class="sourceLineNo">101</span> }<a name="line.101"></a> +<span class="sourceLineNo">102</span><a name="line.102"></a> +<span class="sourceLineNo">103</span> private void flush0(CompletableFuture<Long> future, boolean sync) {<a name="line.103"></a> +<span class="sourceLineNo">104</span> try {<a name="line.104"></a> +<span class="sourceLineNo">105</span> synchronized (out) {<a name="line.105"></a> +<span class="sourceLineNo">106</span> fsOut.write(out.getBuffer(), 0, out.size());<a name="line.106"></a> +<span class="sourceLineNo">107</span> out.reset();<a name="line.107"></a> +<span class="sourceLineNo">108</span> }<a name="line.108"></a> +<span class="sourceLineNo">109</span> } catch (IOException e) {<a name="line.109"></a> +<span class="sourceLineNo">110</span> eventLoop.execute(() -> future.completeExceptionally(e));<a name="line.110"></a> +<span class="sourceLineNo">111</span> return;<a name="line.111"></a> +<span class="sourceLineNo">112</span> }<a name="line.112"></a> +<span class="sourceLineNo">113</span> try {<a name="line.113"></a> +<span class="sourceLineNo">114</span> if (sync) {<a name="line.114"></a> +<span class="sourceLineNo">115</span> fsOut.hsync();<a name="line.115"></a> +<span class="sourceLineNo">116</span> } else {<a name="line.116"></a> +<span class="sourceLineNo">117</span> fsOut.hflush();<a name="line.117"></a> +<span class="sourceLineNo">118</span> }<a name="line.118"></a> +<span class="sourceLineNo">119</span> long pos = fsOut.getPos();<a name="line.119"></a> +<span class="sourceLineNo">120</span> eventLoop.execute(() -> future.complete(pos));<a name="line.120"></a> +<span class="sourceLineNo">121</span> } catch (IOException e) {<a name="line.121"></a> +<span class="sourceLineNo">122</span> eventLoop.execute(() -> future.completeExceptionally(e));<a name="line.122"></a> +<span class="sourceLineNo">123</span> }<a name="line.123"></a> +<span class="sourceLineNo">124</span> }<a name="line.124"></a> +<span class="sourceLineNo">125</span><a name="line.125"></a> +<span class="sourceLineNo">126</span> @Override<a name="line.126"></a> +<span class="sourceLineNo">127</span> public CompletableFuture<Long> flush(boolean sync) {<a name="line.127"></a> +<span class="sourceLineNo">128</span> CompletableFuture<Long> future = new CompletableFuture<>();<a name="line.128"></a> +<span class="sourceLineNo">129</span> flushExecutor.execute(() -> flush0(future, sync));<a name="line.129"></a> +<span class="sourceLineNo">130</span> return future;<a name="line.130"></a> +<span class="sourceLineNo">131</span> }<a name="line.131"></a> +<span class="sourceLineNo">132</span><a name="line.132"></a> +<span class="sourceLineNo">133</span> @Override<a name="line.133"></a> +<span class="sourceLineNo">134</span> public void close() throws IOException {<a name="line.134"></a> +<span class="sourceLineNo">135</span> try {<a name="line.135"></a> +<span class="sourceLineNo">136</span> flushExecutor.submit(() -> {<a name="line.136"></a> +<span class="sourceLineNo">137</span> synchronized (out) {<a name="line.137"></a> +<span class="sourceLineNo">138</span> fsOut.write(out.getBuffer(), 0, out.size());<a name="line.138"></a> +<span class="sourceLineNo">139</span> out.reset();<a name="line.139"></a> +<span class="sourceLineNo">140</span> }<a name="line.140"></a> +<span class="sourceLineNo">141</span> return null;<a name="line.141"></a> +<span class="sourceLineNo">142</span> }).get();<a name="line.142"></a> +<span class="sourceLineNo">143</span> } catch (InterruptedException e) {<a name="line.143"></a> +<span class="sourceLineNo">144</span> throw new InterruptedIOException();<a name="line.144"></a> +<span class="sourceLineNo">145</span> } catch (ExecutionException e) {<a name="line.145"></a> +<span class="sourceLineNo">146</span> Throwables.propagateIfPossible(e.getCause(), IOException.class);<a name="line.146"></a> +<span class="sourceLineNo">147</span> throw new IOException(e.getCause());<a name="line.147"></a> +<span class="sourceLineNo">148</span> } finally {<a name="line.148"></a> +<span class="sourceLineNo">149</span> flushExecutor.shutdown();<a name="line.149"></a> +<span class="sourceLineNo">150</span> }<a name="line.150"></a> +<span class="sourceLineNo">151</span> fsOut.close();<a name="line.151"></a> +<span class="sourceLineNo">152</span> }<a name="line.152"></a> +<span class="sourceLineNo">153</span><a name="line.153"></a> +<span class="sourceLineNo">154</span> @Override<a name="line.154"></a> +<span class="sourceLineNo">155</span> public int buffered() {<a name="line.155"></a> +<span class="sourceLineNo">156</span> return out.size();<a name="line.156"></a> +<span class="sourceLineNo">157</span> }<a name="line.157"></a> +<span class="sourceLineNo">158</span><a name="line.158"></a> +<span class="sourceLineNo">159</span> @Override<a name="line.159"></a> +<span class="sourceLineNo">160</span> public void writeInt(int i) {<a name="line.160"></a> +<span class="sourceLineNo">161</span> out.writeInt(i);<a name="line.161"></a> +<span class="sourceLineNo">162</span> }<a name="line.162"></a> +<span class="sourceLineNo">163</span><a name="line.163"></a> +<span class="sourceLineNo">164</span> @Override<a name="line.164"></a> +<span class="sourceLineNo">165</span> public void write(ByteBuffer bb) {<a name="line.165"></a> +<span class="sourceLineNo">166</span> out.write(bb, bb.position(), bb.remaining());<a name="line.166"></a> +<span class="sourceLineNo">167</span> }<a name="line.167"></a> +<span class="sourceLineNo">168</span> };<a name="line.168"></a> +<span class="sourceLineNo">169</span> }<a name="line.169"></a> +<span class="sourceLineNo">170</span>}<a name="line.170"></a>
