You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@hbase.apache.org by mi...@apache.org on 2016/03/24 16:55:03 UTC
[23/51] [partial] hbase-site git commit: Published site at
52fd70500e0a00e273e2ec0c09d7c914b89432ce.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f30982bd/devapidocs/src-html/org/apache/hadoop/hbase/ipc/AsyncServerResponseHandler.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/ipc/AsyncServerResponseHandler.html b/devapidocs/src-html/org/apache/hadoop/hbase/ipc/AsyncServerResponseHandler.html
index 36faa46..ac6b775 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/ipc/AsyncServerResponseHandler.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/ipc/AsyncServerResponseHandler.html
@@ -25,111 +25,113 @@
<span class="sourceLineNo">017</span> */<a name="line.17"></a>
<span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.ipc;<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
-<span class="sourceLineNo">020</span>import io.netty.buffer.ByteBuf;<a name="line.20"></a>
-<span class="sourceLineNo">021</span>import io.netty.buffer.ByteBufInputStream;<a name="line.21"></a>
-<span class="sourceLineNo">022</span>import io.netty.channel.ChannelHandlerContext;<a name="line.22"></a>
-<span class="sourceLineNo">023</span>import io.netty.channel.ChannelInboundHandlerAdapter;<a name="line.23"></a>
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-<span class="sourceLineNo">026</span><a name="line.26"></a>
-<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.CellScanner;<a name="line.27"></a>
-<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.protobuf.ProtobufUtil;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.protobuf.generated.RPCProtos;<a name="line.30"></a>
-<span class="sourceLineNo">031</span>import org.apache.hadoop.ipc.RemoteException;<a name="line.31"></a>
-<span class="sourceLineNo">032</span><a name="line.32"></a>
-<span class="sourceLineNo">033</span>import com.google.protobuf.Message;<a name="line.33"></a>
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+<span class="sourceLineNo">021</span><a name="line.21"></a>
+<span class="sourceLineNo">022</span>import org.apache.hadoop.hbase.CellScanner;<a name="line.22"></a>
+<span class="sourceLineNo">023</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.23"></a>
+<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.protobuf.ProtobufUtil;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.protobuf.generated.RPCProtos;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import org.apache.hadoop.ipc.RemoteException;<a name="line.26"></a>
+<span class="sourceLineNo">027</span><a name="line.27"></a>
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+<span class="sourceLineNo">030</span>import io.netty.buffer.ByteBuf;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import io.netty.buffer.ByteBufInputStream;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import io.netty.channel.ChannelHandlerContext;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import io.netty.channel.SimpleChannelInboundHandler;<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> * Handles Hbase responses<a name="line.36"></a>
<span class="sourceLineNo">037</span> */<a name="line.37"></a>
<span class="sourceLineNo">038</span>@InterfaceAudience.Private<a name="line.38"></a>
-<span class="sourceLineNo">039</span>public class AsyncServerResponseHandler extends ChannelInboundHandlerAdapter {<a name="line.39"></a>
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<span class="sourceLineNo">040</span> private final AsyncRpcChannel channel;<a name="line.40"></a>
<span class="sourceLineNo">041</span><a name="line.41"></a>
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-<span class="sourceLineNo">065</span> // this connection.<a name="line.65"></a>
-<span class="sourceLineNo">066</span> int readSoFar = IPCUtil.getTotalSizeWhenWrittenDelimited(responseHeader);<a name="line.66"></a>
-<span class="sourceLineNo">067</span> int whatIsLeftToRead = totalSize - readSoFar;<a name="line.67"></a>
-<span class="sourceLineNo">068</span><a name="line.68"></a>
-<span class="sourceLineNo">069</span> // This is done through a Netty ByteBuf which has different behavior than InputStream.<a name="line.69"></a>
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-<span class="sourceLineNo">071</span> // exception when too many bytes are to be skipped.<a name="line.71"></a>
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-<span class="sourceLineNo">075</span><a name="line.75"></a>
-<span class="sourceLineNo">076</span> if (responseHeader.hasException()) {<a name="line.76"></a>
-<span class="sourceLineNo">077</span> RPCProtos.ExceptionResponse exceptionResponse = responseHeader.getException();<a name="line.77"></a>
-<span class="sourceLineNo">078</span> RemoteException re = createRemoteException(exceptionResponse);<a name="line.78"></a>
-<span class="sourceLineNo">079</span> if (exceptionResponse.getExceptionClassName().<a name="line.79"></a>
-<span class="sourceLineNo">080</span> equals(FatalConnectionException.class.getName())) {<a name="line.80"></a>
-<span class="sourceLineNo">081</span> channel.close(re);<a name="line.81"></a>
-<span class="sourceLineNo">082</span> } else {<a name="line.82"></a>
-<span class="sourceLineNo">083</span> call.setFailed(re);<a name="line.83"></a>
-<span class="sourceLineNo">084</span> }<a name="line.84"></a>
-<span class="sourceLineNo">085</span> } else {<a name="line.85"></a>
-<span class="sourceLineNo">086</span> Message value = null;<a name="line.86"></a>
-<span class="sourceLineNo">087</span> // Call may be null because it may have timedout and been cleaned up on this side already<a name="line.87"></a>
-<span class="sourceLineNo">088</span> if (call.responseDefaultType != null) {<a name="line.88"></a>
-<span class="sourceLineNo">089</span> Message.Builder builder = call.responseDefaultType.newBuilderForType();<a name="line.89"></a>
-<span class="sourceLineNo">090</span> ProtobufUtil.mergeDelimitedFrom(builder, in);<a name="line.90"></a>
-<span class="sourceLineNo">091</span> value = builder.build();<a name="line.91"></a>
-<span class="sourceLineNo">092</span> }<a name="line.92"></a>
-<span class="sourceLineNo">093</span> CellScanner cellBlockScanner = null;<a name="line.93"></a>
-<span class="sourceLineNo">094</span> if (responseHeader.hasCellBlockMeta()) {<a name="line.94"></a>
-<span class="sourceLineNo">095</span> int size = responseHeader.getCellBlockMeta().getLength();<a name="line.95"></a>
-<span class="sourceLineNo">096</span> byte[] cellBlock = new byte[size];<a name="line.96"></a>
-<span class="sourceLineNo">097</span> inBuffer.readBytes(cellBlock, 0, cellBlock.length);<a name="line.97"></a>
-<span class="sourceLineNo">098</span> cellBlockScanner = channel.client.createCellScanner(cellBlock);<a name="line.98"></a>
-<span class="sourceLineNo">099</span> }<a name="line.99"></a>
-<span class="sourceLineNo">100</span> call.setSuccess(value, cellBlockScanner);<a name="line.100"></a>
-<span class="sourceLineNo">101</span> call.callStats.setResponseSizeBytes(totalSize);<a name="line.101"></a>
-<span class="sourceLineNo">102</span> }<a name="line.102"></a>
-<span class="sourceLineNo">103</span> } catch (IOException e) {<a name="line.103"></a>
-<span class="sourceLineNo">104</span> // Treat this as a fatal condition and close this connection<a name="line.104"></a>
-<span class="sourceLineNo">105</span> channel.close(e);<a name="line.105"></a>
-<span class="sourceLineNo">106</span> } finally {<a name="line.106"></a>
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-<span class="sourceLineNo">108</span> }<a name="line.108"></a>
-<span class="sourceLineNo">109</span> }<a name="line.109"></a>
-<span class="sourceLineNo">110</span><a name="line.110"></a>
-<span class="sourceLineNo">111</span> /**<a name="line.111"></a>
-<span class="sourceLineNo">112</span> * @param e Proto exception<a name="line.112"></a>
-<span class="sourceLineNo">113</span> * @return RemoteException made from passed <code>e</code><a name="line.113"></a>
-<span class="sourceLineNo">114</span> */<a name="line.114"></a>
-<span class="sourceLineNo">115</span> private RemoteException createRemoteException(final RPCProtos.ExceptionResponse e) {<a name="line.115"></a>
-<span class="sourceLineNo">116</span> String innerExceptionClassName = e.getExceptionClassName();<a name="line.116"></a>
-<span class="sourceLineNo">117</span> boolean doNotRetry = e.getDoNotRetry();<a name="line.117"></a>
-<span class="sourceLineNo">118</span> return e.hasHostname() ?<a name="line.118"></a>
-<span class="sourceLineNo">119</span> // If a hostname then add it to the RemoteWithExtrasException<a name="line.119"></a>
-<span class="sourceLineNo">120</span> new RemoteWithExtrasException(innerExceptionClassName, e.getStackTrace(), e.getHostname(),<a name="line.120"></a>
-<span class="sourceLineNo">121</span> e.getPort(), doNotRetry) :<a name="line.121"></a>
-<span class="sourceLineNo">122</span> new RemoteWithExtrasException(innerExceptionClassName, e.getStackTrace(), doNotRetry);<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">044</span> * @param channel on which this response handler operates<a name="line.44"></a>
+<span class="sourceLineNo">045</span> */<a name="line.45"></a>
+<span class="sourceLineNo">046</span> public AsyncServerResponseHandler(AsyncRpcChannel channel) {<a name="line.46"></a>
+<span class="sourceLineNo">047</span> this.channel = channel;<a name="line.47"></a>
+<span class="sourceLineNo">048</span> }<a name="line.48"></a>
+<span class="sourceLineNo">049</span><a name="line.49"></a>
+<span class="sourceLineNo">050</span> @Override<a name="line.50"></a>
+<span class="sourceLineNo">051</span> protected void channelRead0(ChannelHandlerContext ctx, ByteBuf inBuffer) throws Exception {<a name="line.51"></a>
+<span class="sourceLineNo">052</span> ByteBufInputStream in = new ByteBufInputStream(inBuffer);<a name="line.52"></a>
+<span class="sourceLineNo">053</span> int totalSize = inBuffer.readableBytes();<a name="line.53"></a>
+<span class="sourceLineNo">054</span> // Read the header<a name="line.54"></a>
+<span class="sourceLineNo">055</span> RPCProtos.ResponseHeader responseHeader = RPCProtos.ResponseHeader.parseDelimitedFrom(in);<a name="line.55"></a>
+<span class="sourceLineNo">056</span> int id = responseHeader.getCallId();<a name="line.56"></a>
+<span class="sourceLineNo">057</span> AsyncCall call = channel.removePendingCall(id);<a name="line.57"></a>
+<span class="sourceLineNo">058</span> if (call == null) {<a name="line.58"></a>
+<span class="sourceLineNo">059</span> // So we got a response for which we have no corresponding 'call' here on the client-side.<a name="line.59"></a>
+<span class="sourceLineNo">060</span> // We probably timed out waiting, cleaned up all references, and now the server decides<a name="line.60"></a>
+<span class="sourceLineNo">061</span> // to return a response. There is nothing we can do w/ the response at this stage. Clean<a name="line.61"></a>
+<span class="sourceLineNo">062</span> // out the wire of the response so its out of the way and we can get other responses on<a name="line.62"></a>
+<span class="sourceLineNo">063</span> // this connection.<a name="line.63"></a>
+<span class="sourceLineNo">064</span> int readSoFar = IPCUtil.getTotalSizeWhenWrittenDelimited(responseHeader);<a name="line.64"></a>
+<span class="sourceLineNo">065</span> int whatIsLeftToRead = totalSize - readSoFar;<a name="line.65"></a>
+<span class="sourceLineNo">066</span><a name="line.66"></a>
+<span class="sourceLineNo">067</span> // This is done through a Netty ByteBuf which has different behavior than InputStream.<a name="line.67"></a>
+<span class="sourceLineNo">068</span> // It does not return number of bytes read but will update pointer internally and throws an<a name="line.68"></a>
+<span class="sourceLineNo">069</span> // exception when too many bytes are to be skipped.<a name="line.69"></a>
+<span class="sourceLineNo">070</span> inBuffer.skipBytes(whatIsLeftToRead);<a name="line.70"></a>
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+<span class="sourceLineNo">073</span><a name="line.73"></a>
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+<span class="sourceLineNo">076</span> RemoteException re = createRemoteException(exceptionResponse);<a name="line.76"></a>
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+<span class="sourceLineNo">078</span> .equals(FatalConnectionException.class.getName())) {<a name="line.78"></a>
+<span class="sourceLineNo">079</span> channel.close(re);<a name="line.79"></a>
+<span class="sourceLineNo">080</span> } else {<a name="line.80"></a>
+<span class="sourceLineNo">081</span> call.setFailed(re);<a name="line.81"></a>
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+<span class="sourceLineNo">083</span> } else {<a name="line.83"></a>
+<span class="sourceLineNo">084</span> Message value = null;<a name="line.84"></a>
+<span class="sourceLineNo">085</span> // Call may be null because it may have timedout and been cleaned up on this side already<a name="line.85"></a>
+<span class="sourceLineNo">086</span> if (call.responseDefaultType != null) {<a name="line.86"></a>
+<span class="sourceLineNo">087</span> Message.Builder builder = call.responseDefaultType.newBuilderForType();<a name="line.87"></a>
+<span class="sourceLineNo">088</span> ProtobufUtil.mergeDelimitedFrom(builder, in);<a name="line.88"></a>
+<span class="sourceLineNo">089</span> value = builder.build();<a name="line.89"></a>
+<span class="sourceLineNo">090</span> }<a name="line.90"></a>
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+<span class="sourceLineNo">092</span> if (responseHeader.hasCellBlockMeta()) {<a name="line.92"></a>
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+<span class="sourceLineNo">095</span> inBuffer.readBytes(cellBlock, 0, cellBlock.length);<a name="line.95"></a>
+<span class="sourceLineNo">096</span> cellBlockScanner = channel.client.createCellScanner(cellBlock);<a name="line.96"></a>
+<span class="sourceLineNo">097</span> }<a name="line.97"></a>
+<span class="sourceLineNo">098</span> call.setSuccess(value, cellBlockScanner);<a name="line.98"></a>
+<span class="sourceLineNo">099</span> call.callStats.setResponseSizeBytes(totalSize);<a name="line.99"></a>
+<span class="sourceLineNo">100</span> }<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> @Override<a name="line.103"></a>
+<span class="sourceLineNo">104</span> public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {<a name="line.104"></a>
+<span class="sourceLineNo">105</span> channel.close(cause);<a name="line.105"></a>
+<span class="sourceLineNo">106</span> }<a name="line.106"></a>
+<span class="sourceLineNo">107</span><a name="line.107"></a>
+<span class="sourceLineNo">108</span> @Override<a name="line.108"></a>
+<span class="sourceLineNo">109</span> public void channelInactive(ChannelHandlerContext ctx) throws Exception {<a name="line.109"></a>
+<span class="sourceLineNo">110</span> channel.close(new IOException("connection closed"));<a name="line.110"></a>
+<span class="sourceLineNo">111</span> }<a name="line.111"></a>
+<span class="sourceLineNo">112</span><a name="line.112"></a>
+<span class="sourceLineNo">113</span> /**<a name="line.113"></a>
+<span class="sourceLineNo">114</span> * @param e Proto exception<a name="line.114"></a>
+<span class="sourceLineNo">115</span> * @return RemoteException made from passed <code>e</code><a name="line.115"></a>
+<span class="sourceLineNo">116</span> */<a name="line.116"></a>
+<span class="sourceLineNo">117</span> private RemoteException createRemoteException(final RPCProtos.ExceptionResponse e) {<a name="line.117"></a>
+<span class="sourceLineNo">118</span> String innerExceptionClassName = e.getExceptionClassName();<a name="line.118"></a>
+<span class="sourceLineNo">119</span> boolean doNotRetry = e.getDoNotRetry();<a name="line.119"></a>
+<span class="sourceLineNo">120</span> return e.hasHostname() ?<a name="line.120"></a>
+<span class="sourceLineNo">121</span> // If a hostname then add it to the RemoteWithExtrasException<a name="line.121"></a>
+<span class="sourceLineNo">122</span> new RemoteWithExtrasException(innerExceptionClassName, e.getStackTrace(), e.getHostname(),<a name="line.122"></a>
+<span class="sourceLineNo">123</span> e.getPort(), doNotRetry)<a name="line.123"></a>
+<span class="sourceLineNo">124</span> : new RemoteWithExtrasException(innerExceptionClassName, e.getStackTrace(), doNotRetry);<a name="line.124"></a>
+<span class="sourceLineNo">125</span> }<a name="line.125"></a>
+<span class="sourceLineNo">126</span>}<a name="line.126"></a>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f30982bd/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/KeyValueScanner.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/KeyValueScanner.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/KeyValueScanner.html
index b62790e..972da71 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/KeyValueScanner.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/KeyValueScanner.html
@@ -38,144 +38,148 @@
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+<span class="sourceLineNo">161</span> *<a name="line.161"></a>
+<span class="sourceLineNo">162</span> * @return true if scanner has values left, false if the underlying data is<a name="line.162"></a>
+<span class="sourceLineNo">163</span> * empty<a name="line.163"></a>
+<span class="sourceLineNo">164</span> * @throws IOException<a name="line.164"></a>
+<span class="sourceLineNo">165</span> */<a name="line.165"></a>
+<span class="sourceLineNo">166</span> public boolean seekToLastRow() throws IOException;<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> * @return the next key in the index, usually the first key of next block OR a key that falls<a name="line.169"></a>
+<span class="sourceLineNo">170</span> * between last key of current block and first key of next block..<a name="line.170"></a>
+<span class="sourceLineNo">171</span> * see HFileWriterImpl#getMidpoint, or null if not known.<a name="line.171"></a>
+<span class="sourceLineNo">172</span> */<a name="line.172"></a>
+<span class="sourceLineNo">173</span> public Cell getNextIndexedKey();<a name="line.173"></a>
+<span class="sourceLineNo">174</span>}<a name="line.174"></a>