hbase-commits mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From git-site-r...@apache.org
Subject [14/25] hbase-site git commit: Published site at .
Date Sun, 14 Jan 2018 15:31:49 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/05b8d7a5/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/FanOutOneBlockAsyncDFSOutputHelper.LeaseManager.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/FanOutOneBlockAsyncDFSOutputHelper.LeaseManager.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/FanOutOneBlockAsyncDFSOutputHelper.LeaseManager.html
index b0a9bb3..ad7bc92 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/FanOutOneBlockAsyncDFSOutputHelper.LeaseManager.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/FanOutOneBlockAsyncDFSOutputHelper.LeaseManager.html
@@ -29,23 +29,23 @@
 <span class="sourceLineNo">021</span>import static org.apache.hadoop.fs.CreateFlag.OVERWRITE;<a name="line.21"></a>
 <span class="sourceLineNo">022</span>import static org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputSaslHelper.createEncryptor;<a name="line.22"></a>
 <span class="sourceLineNo">023</span>import static org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputSaslHelper.trySaslNegotiate;<a name="line.23"></a>
-<span class="sourceLineNo">024</span>import static org.apache.hbase.thirdparty.io.netty.channel.ChannelOption.CONNECT_TIMEOUT_MILLIS;<a name="line.24"></a>
-<span class="sourceLineNo">025</span>import static org.apache.hbase.thirdparty.io.netty.handler.timeout.IdleState.READER_IDLE;<a name="line.25"></a>
-<span class="sourceLineNo">026</span>import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_CLIENT_SOCKET_TIMEOUT_KEY;<a name="line.26"></a>
-<span class="sourceLineNo">027</span>import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_CLIENT_USE_DN_HOSTNAME;<a name="line.27"></a>
-<span class="sourceLineNo">028</span>import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_CLIENT_USE_DN_HOSTNAME_DEFAULT;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import static org.apache.hadoop.hdfs.protocol.datatransfer.BlockConstructionStage.PIPELINE_SETUP_CREATE;<a name="line.29"></a>
+<span class="sourceLineNo">024</span>import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_CLIENT_SOCKET_TIMEOUT_KEY;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_CLIENT_USE_DN_HOSTNAME;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_CLIENT_USE_DN_HOSTNAME_DEFAULT;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import static org.apache.hadoop.hdfs.protocol.datatransfer.BlockConstructionStage.PIPELINE_SETUP_CREATE;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import static org.apache.hbase.thirdparty.io.netty.channel.ChannelOption.CONNECT_TIMEOUT_MILLIS;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import static org.apache.hbase.thirdparty.io.netty.handler.timeout.IdleState.READER_IDLE;<a name="line.29"></a>
 <span class="sourceLineNo">030</span><a name="line.30"></a>
 <span class="sourceLineNo">031</span>import com.google.protobuf.CodedOutputStream;<a name="line.31"></a>
-<span class="sourceLineNo">032</span><a name="line.32"></a>
-<span class="sourceLineNo">033</span>import java.io.IOException;<a name="line.33"></a>
+<span class="sourceLineNo">032</span>import java.io.IOException;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import java.io.InterruptedIOException;<a name="line.33"></a>
 <span class="sourceLineNo">034</span>import java.lang.reflect.InvocationTargetException;<a name="line.34"></a>
 <span class="sourceLineNo">035</span>import java.lang.reflect.Method;<a name="line.35"></a>
 <span class="sourceLineNo">036</span>import java.util.ArrayList;<a name="line.36"></a>
 <span class="sourceLineNo">037</span>import java.util.EnumSet;<a name="line.37"></a>
 <span class="sourceLineNo">038</span>import java.util.List;<a name="line.38"></a>
 <span class="sourceLineNo">039</span>import java.util.concurrent.TimeUnit;<a name="line.39"></a>
-<span class="sourceLineNo">040</span><a name="line.40"></a>
+<span class="sourceLineNo">040</span>import org.apache.commons.lang3.ArrayUtils;<a name="line.40"></a>
 <span class="sourceLineNo">041</span>import org.apache.hadoop.conf.Configuration;<a name="line.41"></a>
 <span class="sourceLineNo">042</span>import org.apache.hadoop.crypto.CryptoProtocolVersion;<a name="line.42"></a>
 <span class="sourceLineNo">043</span>import org.apache.hadoop.crypto.Encryptor;<a name="line.43"></a>
@@ -93,783 +93,819 @@
 <span class="sourceLineNo">085</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.85"></a>
 <span class="sourceLineNo">086</span>import org.slf4j.Logger;<a name="line.86"></a>
 <span class="sourceLineNo">087</span>import org.slf4j.LoggerFactory;<a name="line.87"></a>
-<span class="sourceLineNo">088</span>import org.apache.hbase.thirdparty.com.google.common.base.Throwables;<a name="line.88"></a>
-<span class="sourceLineNo">089</span>import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableMap;<a name="line.89"></a>
-<span class="sourceLineNo">090</span>import org.apache.hbase.thirdparty.io.netty.bootstrap.Bootstrap;<a name="line.90"></a>
-<span class="sourceLineNo">091</span>import org.apache.hbase.thirdparty.io.netty.buffer.ByteBuf;<a name="line.91"></a>
-<span class="sourceLineNo">092</span>import org.apache.hbase.thirdparty.io.netty.buffer.ByteBufAllocator;<a name="line.92"></a>
-<span class="sourceLineNo">093</span>import org.apache.hbase.thirdparty.io.netty.buffer.ByteBufOutputStream;<a name="line.93"></a>
-<span class="sourceLineNo">094</span>import org.apache.hbase.thirdparty.io.netty.buffer.PooledByteBufAllocator;<a name="line.94"></a>
-<span class="sourceLineNo">095</span>import org.apache.hbase.thirdparty.io.netty.channel.Channel;<a name="line.95"></a>
-<span class="sourceLineNo">096</span>import org.apache.hbase.thirdparty.io.netty.channel.ChannelFuture;<a name="line.96"></a>
-<span class="sourceLineNo">097</span>import org.apache.hbase.thirdparty.io.netty.channel.ChannelFutureListener;<a name="line.97"></a>
-<span class="sourceLineNo">098</span>import org.apache.hbase.thirdparty.io.netty.channel.ChannelHandler;<a name="line.98"></a>
-<span class="sourceLineNo">099</span>import org.apache.hbase.thirdparty.io.netty.channel.ChannelHandlerContext;<a name="line.99"></a>
-<span class="sourceLineNo">100</span>import org.apache.hbase.thirdparty.io.netty.channel.ChannelInitializer;<a name="line.100"></a>
-<span class="sourceLineNo">101</span>import org.apache.hbase.thirdparty.io.netty.channel.ChannelPipeline;<a name="line.101"></a>
-<span class="sourceLineNo">102</span>import org.apache.hbase.thirdparty.io.netty.channel.EventLoop;<a name="line.102"></a>
-<span class="sourceLineNo">103</span>import org.apache.hbase.thirdparty.io.netty.channel.EventLoopGroup;<a name="line.103"></a>
-<span class="sourceLineNo">104</span>import org.apache.hbase.thirdparty.io.netty.channel.SimpleChannelInboundHandler;<a name="line.104"></a>
-<span class="sourceLineNo">105</span>import org.apache.hbase.thirdparty.io.netty.handler.codec.protobuf.ProtobufDecoder;<a name="line.105"></a>
-<span class="sourceLineNo">106</span>import org.apache.hbase.thirdparty.io.netty.handler.codec.protobuf.ProtobufVarint32FrameDecoder;<a name="line.106"></a>
-<span class="sourceLineNo">107</span>import org.apache.hbase.thirdparty.io.netty.handler.timeout.IdleStateEvent;<a name="line.107"></a>
-<span class="sourceLineNo">108</span>import org.apache.hbase.thirdparty.io.netty.handler.timeout.IdleStateHandler;<a name="line.108"></a>
-<span class="sourceLineNo">109</span>import org.apache.hbase.thirdparty.io.netty.util.concurrent.Future;<a name="line.109"></a>
-<span class="sourceLineNo">110</span>import org.apache.hbase.thirdparty.io.netty.util.concurrent.FutureListener;<a name="line.110"></a>
-<span class="sourceLineNo">111</span>import org.apache.hbase.thirdparty.io.netty.util.concurrent.Promise;<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> * Helper class for implementing {@link FanOutOneBlockAsyncDFSOutput}.<a name="line.114"></a>
-<span class="sourceLineNo">115</span> */<a name="line.115"></a>
-<span class="sourceLineNo">116</span>@InterfaceAudience.Private<a name="line.116"></a>
-<span class="sourceLineNo">117</span>public final class FanOutOneBlockAsyncDFSOutputHelper {<a name="line.117"></a>
-<span class="sourceLineNo">118</span>  private static final Logger LOG =<a name="line.118"></a>
-<span class="sourceLineNo">119</span>      LoggerFactory.getLogger(FanOutOneBlockAsyncDFSOutputHelper.class);<a name="line.119"></a>
-<span class="sourceLineNo">120</span><a name="line.120"></a>
-<span class="sourceLineNo">121</span>  private FanOutOneBlockAsyncDFSOutputHelper() {<a name="line.121"></a>
-<span class="sourceLineNo">122</span>  }<a name="line.122"></a>
-<span class="sourceLineNo">123</span><a name="line.123"></a>
-<span class="sourceLineNo">124</span>  // use pooled allocator for performance.<a name="line.124"></a>
-<span class="sourceLineNo">125</span>  private static final ByteBufAllocator ALLOC = PooledByteBufAllocator.DEFAULT;<a name="line.125"></a>
+<span class="sourceLineNo">088</span><a name="line.88"></a>
+<span class="sourceLineNo">089</span>import org.apache.hbase.thirdparty.com.google.common.base.Throwables;<a name="line.89"></a>
+<span class="sourceLineNo">090</span>import org.apache.hbase.thirdparty.com.google.common.collect.ImmutableMap;<a name="line.90"></a>
+<span class="sourceLineNo">091</span>import org.apache.hbase.thirdparty.io.netty.bootstrap.Bootstrap;<a name="line.91"></a>
+<span class="sourceLineNo">092</span>import org.apache.hbase.thirdparty.io.netty.buffer.ByteBuf;<a name="line.92"></a>
+<span class="sourceLineNo">093</span>import org.apache.hbase.thirdparty.io.netty.buffer.ByteBufAllocator;<a name="line.93"></a>
+<span class="sourceLineNo">094</span>import org.apache.hbase.thirdparty.io.netty.buffer.ByteBufOutputStream;<a name="line.94"></a>
+<span class="sourceLineNo">095</span>import org.apache.hbase.thirdparty.io.netty.buffer.PooledByteBufAllocator;<a name="line.95"></a>
+<span class="sourceLineNo">096</span>import org.apache.hbase.thirdparty.io.netty.channel.Channel;<a name="line.96"></a>
+<span class="sourceLineNo">097</span>import org.apache.hbase.thirdparty.io.netty.channel.ChannelFuture;<a name="line.97"></a>
+<span class="sourceLineNo">098</span>import org.apache.hbase.thirdparty.io.netty.channel.ChannelFutureListener;<a name="line.98"></a>
+<span class="sourceLineNo">099</span>import org.apache.hbase.thirdparty.io.netty.channel.ChannelHandler;<a name="line.99"></a>
+<span class="sourceLineNo">100</span>import org.apache.hbase.thirdparty.io.netty.channel.ChannelHandlerContext;<a name="line.100"></a>
+<span class="sourceLineNo">101</span>import org.apache.hbase.thirdparty.io.netty.channel.ChannelInitializer;<a name="line.101"></a>
+<span class="sourceLineNo">102</span>import org.apache.hbase.thirdparty.io.netty.channel.ChannelPipeline;<a name="line.102"></a>
+<span class="sourceLineNo">103</span>import org.apache.hbase.thirdparty.io.netty.channel.EventLoop;<a name="line.103"></a>
+<span class="sourceLineNo">104</span>import org.apache.hbase.thirdparty.io.netty.channel.EventLoopGroup;<a name="line.104"></a>
+<span class="sourceLineNo">105</span>import org.apache.hbase.thirdparty.io.netty.channel.SimpleChannelInboundHandler;<a name="line.105"></a>
+<span class="sourceLineNo">106</span>import org.apache.hbase.thirdparty.io.netty.handler.codec.protobuf.ProtobufDecoder;<a name="line.106"></a>
+<span class="sourceLineNo">107</span>import org.apache.hbase.thirdparty.io.netty.handler.codec.protobuf.ProtobufVarint32FrameDecoder;<a name="line.107"></a>
+<span class="sourceLineNo">108</span>import org.apache.hbase.thirdparty.io.netty.handler.timeout.IdleStateEvent;<a name="line.108"></a>
+<span class="sourceLineNo">109</span>import org.apache.hbase.thirdparty.io.netty.handler.timeout.IdleStateHandler;<a name="line.109"></a>
+<span class="sourceLineNo">110</span>import org.apache.hbase.thirdparty.io.netty.util.concurrent.Future;<a name="line.110"></a>
+<span class="sourceLineNo">111</span>import org.apache.hbase.thirdparty.io.netty.util.concurrent.FutureListener;<a name="line.111"></a>
+<span class="sourceLineNo">112</span>import org.apache.hbase.thirdparty.io.netty.util.concurrent.Promise;<a name="line.112"></a>
+<span class="sourceLineNo">113</span><a name="line.113"></a>
+<span class="sourceLineNo">114</span>/**<a name="line.114"></a>
+<span class="sourceLineNo">115</span> * Helper class for implementing {@link FanOutOneBlockAsyncDFSOutput}.<a name="line.115"></a>
+<span class="sourceLineNo">116</span> */<a name="line.116"></a>
+<span class="sourceLineNo">117</span>@InterfaceAudience.Private<a name="line.117"></a>
+<span class="sourceLineNo">118</span>public final class FanOutOneBlockAsyncDFSOutputHelper {<a name="line.118"></a>
+<span class="sourceLineNo">119</span>  private static final Logger LOG =<a name="line.119"></a>
+<span class="sourceLineNo">120</span>      LoggerFactory.getLogger(FanOutOneBlockAsyncDFSOutputHelper.class);<a name="line.120"></a>
+<span class="sourceLineNo">121</span><a name="line.121"></a>
+<span class="sourceLineNo">122</span>  private FanOutOneBlockAsyncDFSOutputHelper() {<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>  public static final String ASYNC_DFS_OUTPUT_CREATE_MAX_RETRIES = "hbase.fs.async.create.retries";<a name="line.125"></a>
 <span class="sourceLineNo">126</span><a name="line.126"></a>
-<span class="sourceLineNo">127</span>  // copied from DFSPacket since it is package private.<a name="line.127"></a>
-<span class="sourceLineNo">128</span>  public static final long HEART_BEAT_SEQNO = -1L;<a name="line.128"></a>
-<span class="sourceLineNo">129</span><a name="line.129"></a>
-<span class="sourceLineNo">130</span>  // Timeouts for communicating with DataNode for streaming writes/reads<a name="line.130"></a>
-<span class="sourceLineNo">131</span>  public static final int READ_TIMEOUT = 60 * 1000;<a name="line.131"></a>
-<span class="sourceLineNo">132</span>  public static final int READ_TIMEOUT_EXTENSION = 5 * 1000;<a name="line.132"></a>
-<span class="sourceLineNo">133</span>  public static final int WRITE_TIMEOUT = 8 * 60 * 1000;<a name="line.133"></a>
-<span class="sourceLineNo">134</span><a name="line.134"></a>
-<span class="sourceLineNo">135</span>  // helper class for getting Status from PipelineAckProto. In hadoop 2.6 or before, there is a<a name="line.135"></a>
-<span class="sourceLineNo">136</span>  // getStatus method, and for hadoop 2.7 or after, the status is retrieved from flag. The flag may<a name="line.136"></a>
-<span class="sourceLineNo">137</span>  // get from proto directly, or combined by the reply field of the proto and a ECN object. See<a name="line.137"></a>
-<span class="sourceLineNo">138</span>  // createPipelineAckStatusGetter for more details.<a name="line.138"></a>
-<span class="sourceLineNo">139</span>  private interface PipelineAckStatusGetter {<a name="line.139"></a>
-<span class="sourceLineNo">140</span>    Status get(PipelineAckProto ack);<a name="line.140"></a>
-<span class="sourceLineNo">141</span>  }<a name="line.141"></a>
-<span class="sourceLineNo">142</span><a name="line.142"></a>
-<span class="sourceLineNo">143</span>  private static final PipelineAckStatusGetter PIPELINE_ACK_STATUS_GETTER;<a name="line.143"></a>
-<span class="sourceLineNo">144</span><a name="line.144"></a>
-<span class="sourceLineNo">145</span>  // StorageType enum is placed under o.a.h.hdfs in hadoop 2.6 and o.a.h.fs in hadoop 2.7. So here<a name="line.145"></a>
-<span class="sourceLineNo">146</span>  // we need to use reflection to set it.See createStorageTypeSetter for more details.<a name="line.146"></a>
-<span class="sourceLineNo">147</span>  private interface StorageTypeSetter {<a name="line.147"></a>
-<span class="sourceLineNo">148</span>    OpWriteBlockProto.Builder set(OpWriteBlockProto.Builder builder, Enum&lt;?&gt; storageType);<a name="line.148"></a>
-<span class="sourceLineNo">149</span>  }<a name="line.149"></a>
-<span class="sourceLineNo">150</span><a name="line.150"></a>
-<span class="sourceLineNo">151</span>  private static final StorageTypeSetter STORAGE_TYPE_SETTER;<a name="line.151"></a>
-<span class="sourceLineNo">152</span><a name="line.152"></a>
-<span class="sourceLineNo">153</span>  // helper class for calling add block method on namenode. There is a addBlockFlags parameter for<a name="line.153"></a>
-<span class="sourceLineNo">154</span>  // hadoop 2.8 or later. See createBlockAdder for more details.<a name="line.154"></a>
-<span class="sourceLineNo">155</span>  private interface BlockAdder {<a name="line.155"></a>
+<span class="sourceLineNo">127</span>  public static final int DEFAULT_ASYNC_DFS_OUTPUT_CREATE_MAX_RETRIES = 10;<a name="line.127"></a>
+<span class="sourceLineNo">128</span>  // use pooled allocator for performance.<a name="line.128"></a>
+<span class="sourceLineNo">129</span>  private static final ByteBufAllocator ALLOC = PooledByteBufAllocator.DEFAULT;<a name="line.129"></a>
+<span class="sourceLineNo">130</span><a name="line.130"></a>
+<span class="sourceLineNo">131</span>  // copied from DFSPacket since it is package private.<a name="line.131"></a>
+<span class="sourceLineNo">132</span>  public static final long HEART_BEAT_SEQNO = -1L;<a name="line.132"></a>
+<span class="sourceLineNo">133</span><a name="line.133"></a>
+<span class="sourceLineNo">134</span>  // Timeouts for communicating with DataNode for streaming writes/reads<a name="line.134"></a>
+<span class="sourceLineNo">135</span>  public static final int READ_TIMEOUT = 60 * 1000;<a name="line.135"></a>
+<span class="sourceLineNo">136</span><a name="line.136"></a>
+<span class="sourceLineNo">137</span>  private static final DatanodeInfo[] EMPTY_DN_ARRAY = new DatanodeInfo[0];<a name="line.137"></a>
+<span class="sourceLineNo">138</span><a name="line.138"></a>
+<span class="sourceLineNo">139</span>  // helper class for getting Status from PipelineAckProto. In hadoop 2.6 or before, there is a<a name="line.139"></a>
+<span class="sourceLineNo">140</span>  // getStatus method, and for hadoop 2.7 or after, the status is retrieved from flag. The flag may<a name="line.140"></a>
+<span class="sourceLineNo">141</span>  // get from proto directly, or combined by the reply field of the proto and a ECN object. See<a name="line.141"></a>
+<span class="sourceLineNo">142</span>  // createPipelineAckStatusGetter for more details.<a name="line.142"></a>
+<span class="sourceLineNo">143</span>  private interface PipelineAckStatusGetter {<a name="line.143"></a>
+<span class="sourceLineNo">144</span>    Status get(PipelineAckProto ack);<a name="line.144"></a>
+<span class="sourceLineNo">145</span>  }<a name="line.145"></a>
+<span class="sourceLineNo">146</span><a name="line.146"></a>
+<span class="sourceLineNo">147</span>  private static final PipelineAckStatusGetter PIPELINE_ACK_STATUS_GETTER;<a name="line.147"></a>
+<span class="sourceLineNo">148</span><a name="line.148"></a>
+<span class="sourceLineNo">149</span>  // StorageType enum is placed under o.a.h.hdfs in hadoop 2.6 and o.a.h.fs in hadoop 2.7. So here<a name="line.149"></a>
+<span class="sourceLineNo">150</span>  // we need to use reflection to set it.See createStorageTypeSetter for more details.<a name="line.150"></a>
+<span class="sourceLineNo">151</span>  private interface StorageTypeSetter {<a name="line.151"></a>
+<span class="sourceLineNo">152</span>    OpWriteBlockProto.Builder set(OpWriteBlockProto.Builder builder, Enum&lt;?&gt; storageType);<a name="line.152"></a>
+<span class="sourceLineNo">153</span>  }<a name="line.153"></a>
+<span class="sourceLineNo">154</span><a name="line.154"></a>
+<span class="sourceLineNo">155</span>  private static final StorageTypeSetter STORAGE_TYPE_SETTER;<a name="line.155"></a>
 <span class="sourceLineNo">156</span><a name="line.156"></a>
-<span class="sourceLineNo">157</span>    LocatedBlock addBlock(ClientProtocol namenode, String src, String clientName,<a name="line.157"></a>
-<span class="sourceLineNo">158</span>        ExtendedBlock previous, DatanodeInfo[] excludeNodes, long fileId, String[] favoredNodes)<a name="line.158"></a>
-<span class="sourceLineNo">159</span>        throws IOException;<a name="line.159"></a>
-<span class="sourceLineNo">160</span>  }<a name="line.160"></a>
-<span class="sourceLineNo">161</span><a name="line.161"></a>
-<span class="sourceLineNo">162</span>  private static final BlockAdder BLOCK_ADDER;<a name="line.162"></a>
-<span class="sourceLineNo">163</span><a name="line.163"></a>
-<span class="sourceLineNo">164</span>  private interface LeaseManager {<a name="line.164"></a>
+<span class="sourceLineNo">157</span>  // helper class for calling add block method on namenode. There is a addBlockFlags parameter for<a name="line.157"></a>
+<span class="sourceLineNo">158</span>  // hadoop 2.8 or later. See createBlockAdder for more details.<a name="line.158"></a>
+<span class="sourceLineNo">159</span>  private interface BlockAdder {<a name="line.159"></a>
+<span class="sourceLineNo">160</span><a name="line.160"></a>
+<span class="sourceLineNo">161</span>    LocatedBlock addBlock(ClientProtocol namenode, String src, String clientName,<a name="line.161"></a>
+<span class="sourceLineNo">162</span>        ExtendedBlock previous, DatanodeInfo[] excludeNodes, long fileId, String[] favoredNodes)<a name="line.162"></a>
+<span class="sourceLineNo">163</span>        throws IOException;<a name="line.163"></a>
+<span class="sourceLineNo">164</span>  }<a name="line.164"></a>
 <span class="sourceLineNo">165</span><a name="line.165"></a>
-<span class="sourceLineNo">166</span>    void begin(DFSClient client, long inodeId);<a name="line.166"></a>
+<span class="sourceLineNo">166</span>  private static final BlockAdder BLOCK_ADDER;<a name="line.166"></a>
 <span class="sourceLineNo">167</span><a name="line.167"></a>
-<span class="sourceLineNo">168</span>    void end(DFSClient client, long inodeId);<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>
-<span class="sourceLineNo">171</span>  private static final LeaseManager LEASE_MANAGER;<a name="line.171"></a>
-<span class="sourceLineNo">172</span><a name="line.172"></a>
-<span class="sourceLineNo">173</span>  // This is used to terminate a recoverFileLease call when FileSystem is already closed.<a name="line.173"></a>
-<span class="sourceLineNo">174</span>  // isClientRunning is not public so we need to use reflection.<a name="line.174"></a>
-<span class="sourceLineNo">175</span>  private interface DFSClientAdaptor {<a name="line.175"></a>
+<span class="sourceLineNo">168</span>  private interface LeaseManager {<a name="line.168"></a>
+<span class="sourceLineNo">169</span><a name="line.169"></a>
+<span class="sourceLineNo">170</span>    void begin(DFSClient client, long inodeId);<a name="line.170"></a>
+<span class="sourceLineNo">171</span><a name="line.171"></a>
+<span class="sourceLineNo">172</span>    void end(DFSClient client, long inodeId);<a name="line.172"></a>
+<span class="sourceLineNo">173</span>  }<a name="line.173"></a>
+<span class="sourceLineNo">174</span><a name="line.174"></a>
+<span class="sourceLineNo">175</span>  private static final LeaseManager LEASE_MANAGER;<a name="line.175"></a>
 <span class="sourceLineNo">176</span><a name="line.176"></a>
-<span class="sourceLineNo">177</span>    boolean isClientRunning(DFSClient client);<a name="line.177"></a>
-<span class="sourceLineNo">178</span>  }<a name="line.178"></a>
-<span class="sourceLineNo">179</span><a name="line.179"></a>
-<span class="sourceLineNo">180</span>  private static final DFSClientAdaptor DFS_CLIENT_ADAPTOR;<a name="line.180"></a>
-<span class="sourceLineNo">181</span><a name="line.181"></a>
-<span class="sourceLineNo">182</span>  // helper class for convert protos.<a name="line.182"></a>
-<span class="sourceLineNo">183</span>  private interface PBHelper {<a name="line.183"></a>
-<span class="sourceLineNo">184</span><a name="line.184"></a>
-<span class="sourceLineNo">185</span>    ExtendedBlockProto convert(ExtendedBlock b);<a name="line.185"></a>
-<span class="sourceLineNo">186</span><a name="line.186"></a>
-<span class="sourceLineNo">187</span>    TokenProto convert(Token&lt;?&gt; tok);<a name="line.187"></a>
-<span class="sourceLineNo">188</span>  }<a name="line.188"></a>
-<span class="sourceLineNo">189</span><a name="line.189"></a>
-<span class="sourceLineNo">190</span>  private static final PBHelper PB_HELPER;<a name="line.190"></a>
-<span class="sourceLineNo">191</span><a name="line.191"></a>
-<span class="sourceLineNo">192</span>  // helper class for creating data checksum.<a name="line.192"></a>
-<span class="sourceLineNo">193</span>  private interface ChecksumCreater {<a name="line.193"></a>
-<span class="sourceLineNo">194</span>    DataChecksum createChecksum(DFSClient client);<a name="line.194"></a>
-<span class="sourceLineNo">195</span>  }<a name="line.195"></a>
-<span class="sourceLineNo">196</span><a name="line.196"></a>
-<span class="sourceLineNo">197</span>  private static final ChecksumCreater CHECKSUM_CREATER;<a name="line.197"></a>
-<span class="sourceLineNo">198</span><a name="line.198"></a>
-<span class="sourceLineNo">199</span>  // helper class for creating files.<a name="line.199"></a>
-<span class="sourceLineNo">200</span>  private interface FileCreator {<a name="line.200"></a>
-<span class="sourceLineNo">201</span>    default HdfsFileStatus create(ClientProtocol instance, String src, FsPermission masked,<a name="line.201"></a>
-<span class="sourceLineNo">202</span>        String clientName, EnumSetWritable&lt;CreateFlag&gt; flag, boolean createParent,<a name="line.202"></a>
-<span class="sourceLineNo">203</span>        short replication, long blockSize, CryptoProtocolVersion[] supportedVersions)<a name="line.203"></a>
-<span class="sourceLineNo">204</span>        throws Exception {<a name="line.204"></a>
-<span class="sourceLineNo">205</span>      try {<a name="line.205"></a>
-<span class="sourceLineNo">206</span>        return (HdfsFileStatus) createObject(instance, src, masked, clientName, flag, createParent,<a name="line.206"></a>
-<span class="sourceLineNo">207</span>          replication, blockSize, supportedVersions);<a name="line.207"></a>
-<span class="sourceLineNo">208</span>      } catch (InvocationTargetException e) {<a name="line.208"></a>
-<span class="sourceLineNo">209</span>        if (e.getCause() instanceof Exception) {<a name="line.209"></a>
-<span class="sourceLineNo">210</span>          throw (Exception) e.getCause();<a name="line.210"></a>
-<span class="sourceLineNo">211</span>        } else {<a name="line.211"></a>
-<span class="sourceLineNo">212</span>          throw new RuntimeException(e.getCause());<a name="line.212"></a>
-<span class="sourceLineNo">213</span>        }<a name="line.213"></a>
-<span class="sourceLineNo">214</span>      }<a name="line.214"></a>
-<span class="sourceLineNo">215</span>    }<a name="line.215"></a>
-<span class="sourceLineNo">216</span><a name="line.216"></a>
-<span class="sourceLineNo">217</span>    Object createObject(ClientProtocol instance, String src, FsPermission masked, String clientName,<a name="line.217"></a>
-<span class="sourceLineNo">218</span>        EnumSetWritable&lt;CreateFlag&gt; flag, boolean createParent, short replication, long blockSize,<a name="line.218"></a>
-<span class="sourceLineNo">219</span>        CryptoProtocolVersion[] supportedVersions) throws Exception;<a name="line.219"></a>
-<span class="sourceLineNo">220</span>  }<a name="line.220"></a>
-<span class="sourceLineNo">221</span><a name="line.221"></a>
-<span class="sourceLineNo">222</span>  private static final FileCreator FILE_CREATOR;<a name="line.222"></a>
-<span class="sourceLineNo">223</span><a name="line.223"></a>
-<span class="sourceLineNo">224</span>  private static DFSClientAdaptor createDFSClientAdaptor() throws NoSuchMethodException {<a name="line.224"></a>
-<span class="sourceLineNo">225</span>    Method isClientRunningMethod = DFSClient.class.getDeclaredMethod("isClientRunning");<a name="line.225"></a>
-<span class="sourceLineNo">226</span>    isClientRunningMethod.setAccessible(true);<a name="line.226"></a>
-<span class="sourceLineNo">227</span>    return new DFSClientAdaptor() {<a name="line.227"></a>
-<span class="sourceLineNo">228</span><a name="line.228"></a>
-<span class="sourceLineNo">229</span>      @Override<a name="line.229"></a>
-<span class="sourceLineNo">230</span>      public boolean isClientRunning(DFSClient client) {<a name="line.230"></a>
-<span class="sourceLineNo">231</span>        try {<a name="line.231"></a>
-<span class="sourceLineNo">232</span>          return (Boolean) isClientRunningMethod.invoke(client);<a name="line.232"></a>
-<span class="sourceLineNo">233</span>        } catch (IllegalAccessException | InvocationTargetException e) {<a name="line.233"></a>
-<span class="sourceLineNo">234</span>          throw new RuntimeException(e);<a name="line.234"></a>
-<span class="sourceLineNo">235</span>        }<a name="line.235"></a>
-<span class="sourceLineNo">236</span>      }<a name="line.236"></a>
-<span class="sourceLineNo">237</span>    };<a name="line.237"></a>
-<span class="sourceLineNo">238</span>  }<a name="line.238"></a>
-<span class="sourceLineNo">239</span><a name="line.239"></a>
-<span class="sourceLineNo">240</span>  private static LeaseManager createLeaseManager() throws NoSuchMethodException {<a name="line.240"></a>
-<span class="sourceLineNo">241</span>    Method beginFileLeaseMethod =<a name="line.241"></a>
-<span class="sourceLineNo">242</span>        DFSClient.class.getDeclaredMethod("beginFileLease", long.class, DFSOutputStream.class);<a name="line.242"></a>
-<span class="sourceLineNo">243</span>    beginFileLeaseMethod.setAccessible(true);<a name="line.243"></a>
-<span class="sourceLineNo">244</span>    Method endFileLeaseMethod = DFSClient.class.getDeclaredMethod("endFileLease", long.class);<a name="line.244"></a>
-<span class="sourceLineNo">245</span>    endFileLeaseMethod.setAccessible(true);<a name="line.245"></a>
-<span class="sourceLineNo">246</span>    return new LeaseManager() {<a name="line.246"></a>
-<span class="sourceLineNo">247</span><a name="line.247"></a>
-<span class="sourceLineNo">248</span>      @Override<a name="line.248"></a>
-<span class="sourceLineNo">249</span>      public void begin(DFSClient client, long inodeId) {<a name="line.249"></a>
-<span class="sourceLineNo">250</span>        try {<a name="line.250"></a>
-<span class="sourceLineNo">251</span>          beginFileLeaseMethod.invoke(client, inodeId, null);<a name="line.251"></a>
-<span class="sourceLineNo">252</span>        } catch (IllegalAccessException | InvocationTargetException e) {<a name="line.252"></a>
-<span class="sourceLineNo">253</span>          throw new RuntimeException(e);<a name="line.253"></a>
-<span class="sourceLineNo">254</span>        }<a name="line.254"></a>
-<span class="sourceLineNo">255</span>      }<a name="line.255"></a>
-<span class="sourceLineNo">256</span><a name="line.256"></a>
-<span class="sourceLineNo">257</span>      @Override<a name="line.257"></a>
-<span class="sourceLineNo">258</span>      public void end(DFSClient client, long inodeId) {<a name="line.258"></a>
-<span class="sourceLineNo">259</span>        try {<a name="line.259"></a>
-<span class="sourceLineNo">260</span>          endFileLeaseMethod.invoke(client, inodeId);<a name="line.260"></a>
-<span class="sourceLineNo">261</span>        } catch (IllegalAccessException | InvocationTargetException e) {<a name="line.261"></a>
-<span class="sourceLineNo">262</span>          throw new RuntimeException(e);<a name="line.262"></a>
-<span class="sourceLineNo">263</span>        }<a name="line.263"></a>
-<span class="sourceLineNo">264</span>      }<a name="line.264"></a>
-<span class="sourceLineNo">265</span>    };<a name="line.265"></a>
-<span class="sourceLineNo">266</span>  }<a name="line.266"></a>
-<span class="sourceLineNo">267</span><a name="line.267"></a>
-<span class="sourceLineNo">268</span>  private static PipelineAckStatusGetter createPipelineAckStatusGetter27()<a name="line.268"></a>
-<span class="sourceLineNo">269</span>      throws NoSuchMethodException {<a name="line.269"></a>
-<span class="sourceLineNo">270</span>    Method getFlagListMethod = PipelineAckProto.class.getMethod("getFlagList");<a name="line.270"></a>
-<span class="sourceLineNo">271</span>    @SuppressWarnings("rawtypes")<a name="line.271"></a>
-<span class="sourceLineNo">272</span>    Class&lt;? extends Enum&gt; ecnClass;<a name="line.272"></a>
-<span class="sourceLineNo">273</span>    try {<a name="line.273"></a>
-<span class="sourceLineNo">274</span>      ecnClass = Class.forName("org.apache.hadoop.hdfs.protocol.datatransfer.PipelineAck$ECN")<a name="line.274"></a>
-<span class="sourceLineNo">275</span>          .asSubclass(Enum.class);<a name="line.275"></a>
-<span class="sourceLineNo">276</span>    } catch (ClassNotFoundException e) {<a name="line.276"></a>
-<span class="sourceLineNo">277</span>      String msg = "Couldn't properly initialize the PipelineAck.ECN class. Please " +<a name="line.277"></a>
-<span class="sourceLineNo">278</span>          "update your WAL Provider to not make use of the 'asyncfs' provider. See " +<a name="line.278"></a>
-<span class="sourceLineNo">279</span>          "HBASE-16110 for more information.";<a name="line.279"></a>
-<span class="sourceLineNo">280</span>      LOG.error(msg, e);<a name="line.280"></a>
-<span class="sourceLineNo">281</span>      throw new Error(msg, e);<a name="line.281"></a>
-<span class="sourceLineNo">282</span>    }<a name="line.282"></a>
-<span class="sourceLineNo">283</span>    @SuppressWarnings("unchecked")<a name="line.283"></a>
-<span class="sourceLineNo">284</span>    Enum&lt;?&gt; disabledECN = Enum.valueOf(ecnClass, "DISABLED");<a name="line.284"></a>
-<span class="sourceLineNo">285</span>    Method getReplyMethod = PipelineAckProto.class.getMethod("getReply", int.class);<a name="line.285"></a>
-<span class="sourceLineNo">286</span>    Method combineHeaderMethod =<a name="line.286"></a>
-<span class="sourceLineNo">287</span>        PipelineAck.class.getMethod("combineHeader", ecnClass, Status.class);<a name="line.287"></a>
-<span class="sourceLineNo">288</span>    Method getStatusFromHeaderMethod =<a name="line.288"></a>
-<span class="sourceLineNo">289</span>        PipelineAck.class.getMethod("getStatusFromHeader", int.class);<a name="line.289"></a>
-<span class="sourceLineNo">290</span>    return new PipelineAckStatusGetter() {<a name="line.290"></a>
-<span class="sourceLineNo">291</span><a name="line.291"></a>
-<span class="sourceLineNo">292</span>      @Override<a name="line.292"></a>
-<span class="sourceLineNo">293</span>      public Status get(PipelineAckProto ack) {<a name="line.293"></a>
-<span class="sourceLineNo">294</span>        try {<a name="line.294"></a>
-<span class="sourceLineNo">295</span>          @SuppressWarnings("unchecked")<a name="line.295"></a>
-<span class="sourceLineNo">296</span>          List&lt;Integer&gt; flagList = (List&lt;Integer&gt;) getFlagListMethod.invoke(ack);<a name="line.296"></a>
-<span class="sourceLineNo">297</span>          Integer headerFlag;<a name="line.297"></a>
-<span class="sourceLineNo">298</span>          if (flagList.isEmpty()) {<a name="line.298"></a>
-<span class="sourceLineNo">299</span>            Status reply = (Status) getReplyMethod.invoke(ack, 0);<a name="line.299"></a>
-<span class="sourceLineNo">300</span>            headerFlag = (Integer) combineHeaderMethod.invoke(null, disabledECN, reply);<a name="line.300"></a>
-<span class="sourceLineNo">301</span>          } else {<a name="line.301"></a>
-<span class="sourceLineNo">302</span>            headerFlag = flagList.get(0);<a name="line.302"></a>
-<span class="sourceLineNo">303</span>          }<a name="line.303"></a>
-<span class="sourceLineNo">304</span>          return (Status) getStatusFromHeaderMethod.invoke(null, headerFlag);<a name="line.304"></a>
-<span class="sourceLineNo">305</span>        } catch (IllegalAccessException | InvocationTargetException e) {<a name="line.305"></a>
-<span class="sourceLineNo">306</span>          throw new RuntimeException(e);<a name="line.306"></a>
-<span class="sourceLineNo">307</span>        }<a name="line.307"></a>
-<span class="sourceLineNo">308</span>      }<a name="line.308"></a>
-<span class="sourceLineNo">309</span>    };<a name="line.309"></a>
-<span class="sourceLineNo">310</span>  }<a name="line.310"></a>
-<span class="sourceLineNo">311</span><a name="line.311"></a>
-<span class="sourceLineNo">312</span>  private static PipelineAckStatusGetter createPipelineAckStatusGetter26()<a name="line.312"></a>
-<span class="sourceLineNo">313</span>      throws NoSuchMethodException {<a name="line.313"></a>
-<span class="sourceLineNo">314</span>    Method getStatusMethod = PipelineAckProto.class.getMethod("getStatus", int.class);<a name="line.314"></a>
-<span class="sourceLineNo">315</span>    return new PipelineAckStatusGetter() {<a name="line.315"></a>
-<span class="sourceLineNo">316</span><a name="line.316"></a>
-<span class="sourceLineNo">317</span>      @Override<a name="line.317"></a>
-<span class="sourceLineNo">318</span>      public Status get(PipelineAckProto ack) {<a name="line.318"></a>
-<span class="sourceLineNo">319</span>        try {<a name="line.319"></a>
-<span class="sourceLineNo">320</span>          return (Status) getStatusMethod.invoke(ack, 0);<a name="line.320"></a>
-<span class="sourceLineNo">321</span>        } catch (IllegalAccessException | InvocationTargetException e) {<a name="line.321"></a>
-<span class="sourceLineNo">322</span>          throw new RuntimeException(e);<a name="line.322"></a>
-<span class="sourceLineNo">323</span>        }<a name="line.323"></a>
-<span class="sourceLineNo">324</span>      }<a name="line.324"></a>
-<span class="sourceLineNo">325</span>    };<a name="line.325"></a>
-<span class="sourceLineNo">326</span>  }<a name="line.326"></a>
-<span class="sourceLineNo">327</span><a name="line.327"></a>
-<span class="sourceLineNo">328</span>  private static PipelineAckStatusGetter createPipelineAckStatusGetter()<a name="line.328"></a>
-<span class="sourceLineNo">329</span>      throws NoSuchMethodException {<a name="line.329"></a>
-<span class="sourceLineNo">330</span>    try {<a name="line.330"></a>
-<span class="sourceLineNo">331</span>      return createPipelineAckStatusGetter27();<a name="line.331"></a>
-<span class="sourceLineNo">332</span>    } catch (NoSuchMethodException e) {<a name="line.332"></a>
-<span class="sourceLineNo">333</span>      LOG.debug("Can not get expected method " + e.getMessage() +<a name="line.333"></a>
-<span class="sourceLineNo">334</span>          ", this usually because your Hadoop is pre 2.7.0, " +<a name="line.334"></a>
-<span class="sourceLineNo">335</span>          "try the methods in Hadoop 2.6.x instead.");<a name="line.335"></a>
-<span class="sourceLineNo">336</span>    }<a name="line.336"></a>
-<span class="sourceLineNo">337</span>    return createPipelineAckStatusGetter26();<a name="line.337"></a>
-<span class="sourceLineNo">338</span>  }<a name="line.338"></a>
-<span class="sourceLineNo">339</span><a name="line.339"></a>
-<span class="sourceLineNo">340</span>  private static StorageTypeSetter createStorageTypeSetter() throws NoSuchMethodException {<a name="line.340"></a>
-<span class="sourceLineNo">341</span>    Method setStorageTypeMethod =<a name="line.341"></a>
-<span class="sourceLineNo">342</span>        OpWriteBlockProto.Builder.class.getMethod("setStorageType", StorageTypeProto.class);<a name="line.342"></a>
-<span class="sourceLineNo">343</span>    ImmutableMap.Builder&lt;String, StorageTypeProto&gt; builder = ImmutableMap.builder();<a name="line.343"></a>
-<span class="sourceLineNo">344</span>    for (StorageTypeProto storageTypeProto : StorageTypeProto.values()) {<a name="line.344"></a>
-<span class="sourceLineNo">345</span>      builder.put(storageTypeProto.name(), storageTypeProto);<a name="line.345"></a>
-<span class="sourceLineNo">346</span>    }<a name="line.346"></a>
-<span class="sourceLineNo">347</span>    ImmutableMap&lt;String, StorageTypeProto&gt; name2ProtoEnum = builder.build();<a name="line.347"></a>
-<span class="sourceLineNo">348</span>    return new StorageTypeSetter() {<a name="line.348"></a>
-<span class="sourceLineNo">349</span><a name="line.349"></a>
-<span class="sourceLineNo">350</span>      @Override<a name="line.350"></a>
-<span class="sourceLineNo">351</span>      public OpWriteBlockProto.Builder set(OpWriteBlockProto.Builder builder, Enum&lt;?&gt; storageType) {<a name="line.351"></a>
-<span class="sourceLineNo">352</span>        Object protoEnum = name2ProtoEnum.get(storageType.name());<a name="line.352"></a>
-<span class="sourceLineNo">353</span>        try {<a name="line.353"></a>
-<span class="sourceLineNo">354</span>          setStorageTypeMethod.invoke(builder, protoEnum);<a name="line.354"></a>
-<span class="sourceLineNo">355</span>        } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {<a name="line.355"></a>
-<span class="sourceLineNo">356</span>          throw new RuntimeException(e);<a name="line.356"></a>
-<span class="sourceLineNo">357</span>        }<a name="line.357"></a>
-<span class="sourceLineNo">358</span>        return builder;<a name="line.358"></a>
-<span class="sourceLineNo">359</span>      }<a name="line.359"></a>
-<span class="sourceLineNo">360</span>    };<a name="line.360"></a>
-<span class="sourceLineNo">361</span>  }<a name="line.361"></a>
-<span class="sourceLineNo">362</span><a name="line.362"></a>
-<span class="sourceLineNo">363</span>  private static BlockAdder createBlockAdder() throws NoSuchMethodException {<a name="line.363"></a>
-<span class="sourceLineNo">364</span>    for (Method method : ClientProtocol.class.getMethods()) {<a name="line.364"></a>
-<span class="sourceLineNo">365</span>      if (method.getName().equals("addBlock")) {<a name="line.365"></a>
-<span class="sourceLineNo">366</span>        Method addBlockMethod = method;<a name="line.366"></a>
-<span class="sourceLineNo">367</span>        Class&lt;?&gt;[] paramTypes = addBlockMethod.getParameterTypes();<a name="line.367"></a>
-<span class="sourceLineNo">368</span>        if (paramTypes[paramTypes.length - 1] == String[].class) {<a name="line.368"></a>
-<span class="sourceLineNo">369</span>          return new BlockAdder() {<a name="line.369"></a>
-<span class="sourceLineNo">370</span><a name="line.370"></a>
-<span class="sourceLineNo">371</span>            @Override<a name="line.371"></a>
-<span class="sourceLineNo">372</span>            public LocatedBlock addBlock(ClientProtocol namenode, String src, String clientName,<a name="line.372"></a>
-<span class="sourceLineNo">373</span>                ExtendedBlock previous, DatanodeInfo[] excludeNodes, long fileId,<a name="line.373"></a>
-<span class="sourceLineNo">374</span>                String[] favoredNodes) throws IOException {<a name="line.374"></a>
-<span class="sourceLineNo">375</span>              try {<a name="line.375"></a>
-<span class="sourceLineNo">376</span>                return (LocatedBlock) addBlockMethod.invoke(namenode, src, clientName, previous,<a name="line.376"></a>
-<span class="sourceLineNo">377</span>                  excludeNodes, fileId, favoredNodes);<a name="line.377"></a>
-<span class="sourceLineNo">378</span>              } catch (IllegalAccessException e) {<a name="line.378"></a>
-<span class="sourceLineNo">379</span>                throw new RuntimeException(e);<a name="line.379"></a>
-<span class="sourceLineNo">380</span>              } catch (InvocationTargetException e) {<a name="line.380"></a>
-<span class="sourceLineNo">381</span>                Throwables.propagateIfPossible(e.getTargetException(), IOException.class);<a name="line.381"></a>
-<span class="sourceLineNo">382</span>                throw new RuntimeException(e);<a name="line.382"></a>
-<span class="sourceLineNo">383</span>              }<a name="line.383"></a>
-<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>        } else {<a name="line.386"></a>
-<span class="sourceLineNo">387</span>          return new BlockAdder() {<a name="line.387"></a>
-<span class="sourceLineNo">388</span><a name="line.388"></a>
-<span class="sourceLineNo">389</span>            @Override<a name="line.389"></a>
-<span class="sourceLineNo">390</span>            public LocatedBlock addBlock(ClientProtocol namenode, String src, String clientName,<a name="line.390"></a>
-<span class="sourceLineNo">391</span>                ExtendedBlock previous, DatanodeInfo[] excludeNodes, long fileId,<a name="line.391"></a>
-<span class="sourceLineNo">392</span>                String[] favoredNodes) throws IOException {<a name="line.392"></a>
-<span class="sourceLineNo">393</span>              try {<a name="line.393"></a>
-<span class="sourceLineNo">394</span>                return (LocatedBlock) addBlockMethod.invoke(namenode, src, clientName, previous,<a name="line.394"></a>
-<span class="sourceLineNo">395</span>                  excludeNodes, fileId, favoredNodes, null);<a name="line.395"></a>
-<span class="sourceLineNo">396</span>              } catch (IllegalAccessException e) {<a name="line.396"></a>
-<span class="sourceLineNo">397</span>                throw new RuntimeException(e);<a name="line.397"></a>
-<span class="sourceLineNo">398</span>              } catch (InvocationTargetException e) {<a name="line.398"></a>
-<span class="sourceLineNo">399</span>                Throwables.propagateIfPossible(e.getTargetException(), IOException.class);<a name="line.399"></a>
-<span class="sourceLineNo">400</span>                throw new RuntimeException(e);<a name="line.400"></a>
-<span class="sourceLineNo">401</span>              }<a name="line.401"></a>
-<span class="sourceLineNo">402</span>            }<a name="line.402"></a>
-<span class="sourceLineNo">403</span>          };<a name="line.403"></a>
-<span class="sourceLineNo">404</span>        }<a name="line.404"></a>
-<span class="sourceLineNo">405</span>      }<a name="line.405"></a>
-<span class="sourceLineNo">406</span>    }<a name="line.406"></a>
-<span class="sourceLineNo">407</span>    throw new NoSuchMethodException("Can not find addBlock method in ClientProtocol");<a name="line.407"></a>
-<span class="sourceLineNo">408</span>  }<a name="line.408"></a>
-<span class="sourceLineNo">409</span><a name="line.409"></a>
-<span class="sourceLineNo">410</span>  private static PBHelper createPBHelper() throws NoSuchMethodException {<a name="line.410"></a>
-<span class="sourceLineNo">411</span>    Class&lt;?&gt; helperClass;<a name="line.411"></a>
-<span class="sourceLineNo">412</span>    String clazzName = "org.apache.hadoop.hdfs.protocolPB.PBHelperClient";<a name="line.412"></a>
-<span class="sourceLineNo">413</span>    try {<a name="line.413"></a>
-<span class="sourceLineNo">414</span>      helperClass = Class.forName(clazzName);<a name="line.414"></a>
-<span class="sourceLineNo">415</span>    } catch (ClassNotFoundException e) {<a name="line.415"></a>
-<span class="sourceLineNo">416</span>      helperClass = org.apache.hadoop.hdfs.protocolPB.PBHelper.class;<a name="line.416"></a>
-<span class="sourceLineNo">417</span>      LOG.debug("" + clazzName + " not found (Hadoop is pre-2.8.0?); using " +<a name="line.417"></a>
-<span class="sourceLineNo">418</span>          helperClass.toString() + " instead.");<a name="line.418"></a>
-<span class="sourceLineNo">419</span>    }<a name="line.419"></a>
-<span class="sourceLineNo">420</span>    Method convertEBMethod = helperClass.getMethod("convert", ExtendedBlock.class);<a name="line.420"></a>
-<span class="sourceLineNo">421</span>    Method convertTokenMethod = helperClass.getMethod("convert", Token.class);<a name="line.421"></a>
-<span class="sourceLineNo">422</span>    return new PBHelper() {<a name="line.422"></a>
-<span class="sourceLineNo">423</span><a name="line.423"></a>
-<span class="sourceLineNo">424</span>      @Override<a name="line.424"></a>
-<span class="sourceLineNo">425</span>      public ExtendedBlockProto convert(ExtendedBlock b) {<a name="line.425"></a>
-<span class="sourceLineNo">426</span>        try {<a name="line.426"></a>
-<span class="sourceLineNo">427</span>          return (ExtendedBlockProto) convertEBMethod.invoke(null, b);<a name="line.427"></a>
-<span class="sourceLineNo">428</span>        } catch (IllegalAccessException | InvocationTargetException e) {<a name="line.428"></a>
-<span class="sourceLineNo">429</span>          throw new RuntimeException(e);<a name="line.429"></a>
-<span class="sourceLineNo">430</span>        }<a name="line.430"></a>
-<span class="sourceLineNo">431</span>      }<a name="line.431"></a>
-<span class="sourceLineNo">432</span><a name="line.432"></a>
-<span class="sourceLineNo">433</span>      @Override<a name="line.433"></a>
-<span class="sourceLineNo">434</span>      public TokenProto convert(Token&lt;?&gt; tok) {<a name="line.434"></a>
-<span class="sourceLineNo">435</span>        try {<a name="line.435"></a>
-<span class="sourceLineNo">436</span>          return (TokenProto) convertTokenMethod.invoke(null, tok);<a name="line.436"></a>
-<span class="sourceLineNo">437</span>        } catch (IllegalAccessException | InvocationTargetException e) {<a name="line.437"></a>
-<span class="sourceLineNo">438</span>          throw new RuntimeException(e);<a name="line.438"></a>
-<span class="sourceLineNo">439</span>        }<a name="line.439"></a>
-<span class="sourceLineNo">440</span>      }<a name="line.440"></a>
-<span class="sourceLineNo">441</span>    };<a name="line.441"></a>
-<span class="sourceLineNo">442</span>  }<a name="line.442"></a>
-<span class="sourceLineNo">443</span><a name="line.443"></a>
-<span class="sourceLineNo">444</span>  private static ChecksumCreater createChecksumCreater28(Method getConfMethod, Class&lt;?&gt; confClass)<a name="line.444"></a>
-<span class="sourceLineNo">445</span>      throws NoSuchMethodException {<a name="line.445"></a>
-<span class="sourceLineNo">446</span>    for (Method method : confClass.getMethods()) {<a name="line.446"></a>
-<span class="sourceLineNo">447</span>      if (method.getName().equals("createChecksum")) {<a name="line.447"></a>
-<span class="sourceLineNo">448</span>        Method createChecksumMethod = method;<a name="line.448"></a>
-<span class="sourceLineNo">449</span>        return new ChecksumCreater() {<a name="line.449"></a>
-<span class="sourceLineNo">450</span><a name="line.450"></a>
-<span class="sourceLineNo">451</span>          @Override<a name="line.451"></a>
-<span class="sourceLineNo">452</span>          public DataChecksum createChecksum(DFSClient client) {<a name="line.452"></a>
-<span class="sourceLineNo">453</span>            try {<a name="line.453"></a>
-<span class="sourceLineNo">454</span>              return (DataChecksum) createChecksumMethod.invoke(getConfMethod.invoke(client),<a name="line.454"></a>
-<span class="sourceLineNo">455</span>                (Object) null);<a name="line.455"></a>
-<span class="sourceLineNo">456</span>            } catch (IllegalAccessException | InvocationTargetException e) {<a name="line.456"></a>
-<span class="sourceLineNo">457</span>              throw new RuntimeException(e);<a name="line.457"></a>
-<span class="sourceLineNo">458</span>            }<a name="line.458"></a>
-<span class="sourceLineNo">459</span>          }<a name="line.459"></a>
-<span class="sourceLineNo">460</span>        };<a name="line.460"></a>
-<span class="sourceLineNo">461</span>      }<a name="line.461"></a>
-<span class="sourceLineNo">462</span>    }<a name="line.462"></a>
-<span class="sourceLineNo">463</span>    throw new NoSuchMethodException("Can not find createChecksum method in DfsClientConf");<a name="line.463"></a>
-<span class="sourceLineNo">464</span>  }<a name="line.464"></a>
-<span class="sourceLineNo">465</span><a name="line.465"></a>
-<span class="sourceLineNo">466</span>  private static ChecksumCreater createChecksumCreater27(Method getConfMethod, Class&lt;?&gt; confClass)<a name="line.466"></a>
-<span class="sourceLineNo">467</span>      throws NoSuchMethodException {<a name="line.467"></a>
-<span class="sourceLineNo">468</span>    Method createChecksumMethod = confClass.getDeclaredMethod("createChecksum");<a name="line.468"></a>
-<span class="sourceLineNo">469</span>    createChecksumMethod.setAccessible(true);<a name="line.469"></a>
-<span class="sourceLineNo">470</span>    return new ChecksumCreater() {<a name="line.470"></a>
-<span class="sourceLineNo">471</span><a name="line.471"></a>
-<span class="sourceLineNo">472</span>      @Override<a name="line.472"></a>
-<span class="sourceLineNo">473</span>      public DataChecksum createChecksum(DFSClient client) {<a name="line.473"></a>
-<span class="sourceLineNo">474</span>        try {<a name="line.474"></a>
-<span class="sourceLineNo">475</span>          return (DataChecksum) createChecksumMethod.invoke(getConfMethod.invoke(client));<a name="line.475"></a>
-<span class="sourceLineNo">476</span>        } catch (IllegalAccessException | InvocationTargetException e) {<a name="line.476"></a>
-<span class="sourceLineNo">477</span>          throw new RuntimeException(e);<a name="line.477"></a>
-<span class="sourceLineNo">478</span>        }<a name="line.478"></a>
-<span class="sourceLineNo">479</span>      }<a name="line.479"></a>
-<span class="sourceLineNo">480</span>    };<a name="line.480"></a>
-<span class="sourceLineNo">481</span>  }<a name="line.481"></a>
-<span class="sourceLineNo">482</span><a name="line.482"></a>
-<span class="sourceLineNo">483</span>  private static ChecksumCreater createChecksumCreater()<a name="line.483"></a>
-<span class="sourceLineNo">484</span>      throws NoSuchMethodException, ClassNotFoundException {<a name="line.484"></a>
-<span class="sourceLineNo">485</span>    Method getConfMethod = DFSClient.class.getMethod("getConf");<a name="line.485"></a>
-<span class="sourceLineNo">486</span>    try {<a name="line.486"></a>
-<span class="sourceLineNo">487</span>      return createChecksumCreater28(getConfMethod,<a name="line.487"></a>
-<span class="sourceLineNo">488</span>        Class.forName("org.apache.hadoop.hdfs.client.impl.DfsClientConf"));<a name="line.488"></a>
-<span class="sourceLineNo">489</span>    } catch (ClassNotFoundException e) {<a name="line.489"></a>
-<span class="sourceLineNo">490</span>      LOG.debug("No DfsClientConf class found, should be hadoop 2.7-", e);<a name="line.490"></a>
-<span class="sourceLineNo">491</span>    }<a name="line.491"></a>
-<span class="sourceLineNo">492</span>    return createChecksumCreater27(getConfMethod,<a name="line.492"></a>
-<span class="sourceLineNo">493</span>      Class.forName("org.apache.hadoop.hdfs.DFSClient$Conf"));<a name="line.493"></a>
-<span class="sourceLineNo">494</span>  }<a name="line.494"></a>
-<span class="sourceLineNo">495</span><a name="line.495"></a>
-<span class="sourceLineNo">496</span>  private static FileCreator createFileCreator3() throws NoSuchMethodException {<a name="line.496"></a>
-<span class="sourceLineNo">497</span>    Method createMethod = ClientProtocol.class.getMethod("create", String.class, FsPermission.class,<a name="line.497"></a>
-<span class="sourceLineNo">498</span>      String.class, EnumSetWritable.class, boolean.class, short.class, long.class,<a name="line.498"></a>
-<span class="sourceLineNo">499</span>      CryptoProtocolVersion[].class, String.class);<a name="line.499"></a>
-<span class="sourceLineNo">500</span><a name="line.500"></a>
-<span class="sourceLineNo">501</span>    return (instance, src, masked, clientName, flag, createParent, replication, blockSize,<a name="line.501"></a>
-<span class="sourceLineNo">502</span>        supportedVersions) -&gt; {<a name="line.502"></a>
-<span class="sourceLineNo">503</span>      return (HdfsFileStatus) createMethod.invoke(instance, src, masked, clientName, flag,<a name="line.503"></a>
-<span class="sourceLineNo">504</span>        createParent, replication, blockSize, supportedVersions, null);<a name="line.504"></a>
-<span class="sourceLineNo">505</span>    };<a name="line.505"></a>
-<span class="sourceLineNo">506</span>  }<a name="line.506"></a>
-<span class="sourceLineNo">507</span><a name="line.507"></a>
-<span class="sourceLineNo">508</span>  private static FileCreator createFileCreator2() throws NoSuchMethodException {<a name="line.508"></a>
-<span class="sourceLineNo">509</span>    Method createMethod = ClientProtocol.class.getMethod("create", String.class, FsPermission.class,<a name="line.509"></a>
-<span class="sourceLineNo">510</span>      String.class, EnumSetWritable.class, boolean.class, short.class, long.class,<a name="line.510"></a>
-<span class="sourceLineNo">511</span>      CryptoProtocolVersion[].class);<a name="line.511"></a>
-<span class="sourceLineNo">512</span><a name="line.512"></a>
-<span class="sourceLineNo">513</span>    return (instance, src, masked, clientName, flag, createParent, replication, blockSize,<a name="line.513"></a>
-<span class="sourceLineNo">514</span>        supportedVersions) -&gt; {<a name="line.514"></a>
-<span class="sourceLineNo">515</span>      return (HdfsFileStatus) createMethod.invoke(instance, src, masked, clientName, flag,<a name="line.515"></a>
-<span class="sourceLineNo">516</span>        createParent, replication, blockSize, supportedVersions);<a name="line.516"></a>
-<span class="sourceLineNo">517</span>    };<a name="line.517"></a>
-<span class="sourceLineNo">518</span>  }<a name="line.518"></a>
-<span class="sourceLineNo">519</span><a name="line.519"></a>
-<span class="sourceLineNo">520</span>  private static FileCreator createFileCreator() throws NoSuchMethodException {<a name="line.520"></a>
-<span class="sourceLineNo">521</span>    try {<a name="line.521"></a>
-<span class="sourceLineNo">522</span>      return createFileCreator3();<a name="line.522"></a>
-<span class="sourceLineNo">523</span>    } catch (NoSuchMethodException e) {<a name="line.523"></a>
-<span class="sourceLineNo">524</span>      LOG.debug("ClientProtocol::create wrong number of arguments, should be hadoop 2.x");<a name="line.524"></a>
-<span class="sourceLineNo">525</span>    }<a name="line.525"></a>
-<span class="sourceLineNo">526</span>    return createFileCreator2();<a name="line.526"></a>
-<span class="sourceLineNo">527</span>  }<a name="line.527"></a>
-<span class="sourceLineNo">528</span><a name="line.528"></a>
-<span class="sourceLineNo">529</span>  // cancel the processing if DFSClient is already closed.<a name="line.529"></a>
-<span class="sourceLineNo">530</span>  static final class CancelOnClose implements CancelableProgressable {<a name="line.530"></a>
-<span class="sourceLineNo">531</span><a name="line.531"></a>
-<span class="sourceLineNo">532</span>    private final DFSClient client;<a name="line.532"></a>
-<span class="sourceLineNo">533</span><a name="line.533"></a>
-<span class="sourceLineNo">534</span>    public CancelOnClose(DFSClient client) {<a name="line.534"></a>
-<span class="sourceLineNo">535</span>      this.client = client;<a name="line.535"></a>
-<span class="sourceLineNo">536</span>    }<a name="line.536"></a>
+<span class="sourceLineNo">177</span>  // This is used to terminate a recoverFileLease call when FileSystem is already closed.<a name="line.177"></a>
+<span class="sourceLineNo">178</span>  // isClientRunning is not public so we need to use reflection.<a name="line.178"></a>
+<span class="sourceLineNo">179</span>  private interface DFSClientAdaptor {<a name="line.179"></a>
+<span class="sourceLineNo">180</span><a name="line.180"></a>
+<span class="sourceLineNo">181</span>    boolean isClientRunning(DFSClient client);<a name="line.181"></a>
+<span class="sourceLineNo">182</span>  }<a name="line.182"></a>
+<span class="sourceLineNo">183</span><a name="line.183"></a>
+<span class="sourceLineNo">184</span>  private static final DFSClientAdaptor DFS_CLIENT_ADAPTOR;<a name="line.184"></a>
+<span class="sourceLineNo">185</span><a name="line.185"></a>
+<span class="sourceLineNo">186</span>  // helper class for convert protos.<a name="line.186"></a>
+<span class="sourceLineNo">187</span>  private interface PBHelper {<a name="line.187"></a>
+<span class="sourceLineNo">188</span><a name="line.188"></a>
+<span class="sourceLineNo">189</span>    ExtendedBlockProto convert(ExtendedBlock b);<a name="line.189"></a>
+<span class="sourceLineNo">190</span><a name="line.190"></a>
+<span class="sourceLineNo">191</span>    TokenProto convert(Token&lt;?&gt; tok);<a name="line.191"></a>
+<span class="sourceLineNo">192</span>  }<a name="line.192"></a>
+<span class="sourceLineNo">193</span><a name="line.193"></a>
+<span class="sourceLineNo">194</span>  private static final PBHelper PB_HELPER;<a name="line.194"></a>
+<span class="sourceLineNo">195</span><a name="line.195"></a>
+<span class="sourceLineNo">196</span>  // helper class for creating data checksum.<a name="line.196"></a>
+<span class="sourceLineNo">197</span>  private interface ChecksumCreater {<a name="line.197"></a>
+<span class="sourceLineNo">198</span>    DataChecksum createChecksum(DFSClient client);<a name="line.198"></a>
+<span class="sourceLineNo">199</span>  }<a name="line.199"></a>
+<span class="sourceLineNo">200</span><a name="line.200"></a>
+<span class="sourceLineNo">201</span>  private static final ChecksumCreater CHECKSUM_CREATER;<a name="line.201"></a>
+<span class="sourceLineNo">202</span><a name="line.202"></a>
+<span class="sourceLineNo">203</span>  // helper class for creating files.<a name="line.203"></a>
+<span class="sourceLineNo">204</span>  private interface FileCreator {<a name="line.204"></a>
+<span class="sourceLineNo">205</span>    default HdfsFileStatus create(ClientProtocol instance, String src, FsPermission masked,<a name="line.205"></a>
+<span class="sourceLineNo">206</span>        String clientName, EnumSetWritable&lt;CreateFlag&gt; flag, boolean createParent,<a name="line.206"></a>
+<span class="sourceLineNo">207</span>        short replication, long blockSize, CryptoProtocolVersion[] supportedVersions)<a name="line.207"></a>
+<span class="sourceLineNo">208</span>        throws Exception {<a name="line.208"></a>
+<span class="sourceLineNo">209</span>      try {<a name="line.209"></a>
+<span class="sourceLineNo">210</span>        return (HdfsFileStatus) createObject(instance, src, masked, clientName, flag, createParent,<a name="line.210"></a>
+<span class="sourceLineNo">211</span>          replication, blockSize, supportedVersions);<a name="line.211"></a>
+<span class="sourceLineNo">212</span>      } catch (InvocationTargetException e) {<a name="line.212"></a>
+<span class="sourceLineNo">213</span>        if (e.getCause() instanceof Exception) {<a name="line.213"></a>
+<span class="sourceLineNo">214</span>          throw (Exception) e.getCause();<a name="line.214"></a>
+<span class="sourceLineNo">215</span>        } else {<a name="line.215"></a>
+<span class="sourceLineNo">216</span>          throw new RuntimeException(e.getCause());<a name="line.216"></a>
+<span class="sourceLineNo">217</span>        }<a name="line.217"></a>
+<span class="sourceLineNo">218</span>      }<a name="line.218"></a>
+<span class="sourceLineNo">219</span>    }<a name="line.219"></a>
+<span class="sourceLineNo">220</span><a name="line.220"></a>
+<span class="sourceLineNo">221</span>    Object createObject(ClientProtocol instance, String src, FsPermission masked, String clientName,<a name="line.221"></a>
+<span class="sourceLineNo">222</span>        EnumSetWritable&lt;CreateFlag&gt; flag, boolean createParent, short replication, long blockSize,<a name="line.222"></a>
+<span class="sourceLineNo">223</span>        CryptoProtocolVersion[] supportedVersions) throws Exception;<a name="line.223"></a>
+<span class="sourceLineNo">224</span>  }<a name="line.224"></a>
+<span class="sourceLineNo">225</span><a name="line.225"></a>
+<span class="sourceLineNo">226</span>  private static final FileCreator FILE_CREATOR;<a name="line.226"></a>
+<span class="sourceLineNo">227</span><a name="line.227"></a>
+<span class="sourceLineNo">228</span>  private static DFSClientAdaptor createDFSClientAdaptor() throws NoSuchMethodException {<a name="line.228"></a>
+<span class="sourceLineNo">229</span>    Method isClientRunningMethod = DFSClient.class.getDeclaredMethod("isClientRunning");<a name="line.229"></a>
+<span class="sourceLineNo">230</span>    isClientRunningMethod.setAccessible(true);<a name="line.230"></a>
+<span class="sourceLineNo">231</span>    return new DFSClientAdaptor() {<a name="line.231"></a>
+<span class="sourceLineNo">232</span><a name="line.232"></a>
+<span class="sourceLineNo">233</span>      @Override<a name="line.233"></a>
+<span class="sourceLineNo">234</span>      public boolean isClientRunning(DFSClient client) {<a name="line.234"></a>
+<span class="sourceLineNo">235</span>        try {<a name="line.235"></a>
+<span class="sourceLineNo">236</span>          return (Boolean) isClientRunningMethod.invoke(client);<a name="line.236"></a>
+<span class="sourceLineNo">237</span>        } catch (IllegalAccessException | InvocationTargetException e) {<a name="line.237"></a>
+<span class="sourceLineNo">238</span>          throw new RuntimeException(e);<a name="line.238"></a>
+<span class="sourceLineNo">239</span>        }<a name="line.239"></a>
+<span class="sourceLineNo">240</span>      }<a name="line.240"></a>
+<span class="sourceLineNo">241</span>    };<a name="line.241"></a>
+<span class="sourceLineNo">242</span>  }<a name="line.242"></a>
+<span class="sourceLineNo">243</span><a name="line.243"></a>
+<span class="sourceLineNo">244</span>  private static LeaseManager createLeaseManager() throws NoSuchMethodException {<a name="line.244"></a>
+<span class="sourceLineNo">245</span>    Method beginFileLeaseMethod =<a name="line.245"></a>
+<span class="sourceLineNo">246</span>        DFSClient.class.getDeclaredMethod("beginFileLease", long.class, DFSOutputStream.class);<a name="line.246"></a>
+<span class="sourceLineNo">247</span>    beginFileLeaseMethod.setAccessible(true);<a name="line.247"></a>
+<span class="sourceLineNo">248</span>    Method endFileLeaseMethod = DFSClient.class.getDeclaredMethod("endFileLease", long.class);<a name="line.248"></a>
+<span class="sourceLineNo">249</span>    endFileLeaseMethod.setAccessible(true);<a name="line.249"></a>
+<span class="sourceLineNo">250</span>    return new LeaseManager() {<a name="line.250"></a>
+<span class="sourceLineNo">251</span><a name="line.251"></a>
+<span class="sourceLineNo">252</span>      @Override<a name="line.252"></a>
+<span class="sourceLineNo">253</span>      public void begin(DFSClient client, long inodeId) {<a name="line.253"></a>
+<span class="sourceLineNo">254</span>        try {<a name="line.254"></a>
+<span class="sourceLineNo">255</span>          beginFileLeaseMethod.invoke(client, inodeId, null);<a name="line.255"></a>
+<span class="sourceLineNo">256</span>        } catch (IllegalAccessException | InvocationTargetException e) {<a name="line.256"></a>
+<span class="sourceLineNo">257</span>          throw new RuntimeException(e);<a name="line.257"></a>
+<span class="sourceLineNo">258</span>        }<a name="line.258"></a>
+<span class="sourceLineNo">259</span>      }<a name="line.259"></a>
+<span class="sourceLineNo">260</span><a name="line.260"></a>
+<span class="sourceLineNo">261</span>      @Override<a name="line.261"></a>
+<span class="sourceLineNo">262</span>      public void end(DFSClient client, long inodeId) {<a name="line.262"></a>
+<span class="sourceLineNo">263</span>        try {<a name="line.263"></a>
+<span class="sourceLineNo">264</span>          endFileLeaseMethod.invoke(client, inodeId);<a name="line.264"></a>
+<span class="sourceLineNo">265</span>        } catch (IllegalAccessException | InvocationTargetException e) {<a name="line.265"></a>
+<span class="sourceLineNo">266</span>          throw new RuntimeException(e);<a name="line.266"></a>
+<span class="sourceLineNo">267</span>        }<a name="line.267"></a>
+<span class="sourceLineNo">268</span>      }<a name="line.268"></a>
+<span class="sourceLineNo">269</span>    };<a name="line.269"></a>
+<span class="sourceLineNo">270</span>  }<a name="line.270"></a>
+<span class="sourceLineNo">271</span><a name="line.271"></a>
+<span class="sourceLineNo">272</span>  private static PipelineAckStatusGetter createPipelineAckStatusGetter27()<a name="line.272"></a>
+<span class="sourceLineNo">273</span>      throws NoSuchMethodException {<a name="line.273"></a>
+<span class="sourceLineNo">274</span>    Method getFlagListMethod = PipelineAckProto.class.getMethod("getFlagList");<a name="line.274"></a>
+<span class="sourceLineNo">275</span>    @SuppressWarnings("rawtypes")<a name="line.275"></a>
+<span class="sourceLineNo">276</span>    Class&lt;? extends Enum&gt; ecnClass;<a name="line.276"></a>
+<span class="sourceLineNo">277</span>    try {<a name="line.277"></a>
+<span class="sourceLineNo">278</span>      ecnClass = Class.forName("org.apache.hadoop.hdfs.protocol.datatransfer.PipelineAck$ECN")<a name="line.278"></a>
+<span class="sourceLineNo">279</span>          .asSubclass(Enum.class);<a name="line.279"></a>
+<span class="sourceLineNo">280</span>    } catch (ClassNotFoundException e) {<a name="line.280"></a>
+<span class="sourceLineNo">281</span>      String msg = "Couldn't properly initialize the PipelineAck.ECN class. Please " +<a name="line.281"></a>
+<span class="sourceLineNo">282</span>          "update your WAL Provider to not make use of the 'asyncfs' provider. See " +<a name="line.282"></a>
+<span class="sourceLineNo">283</span>          "HBASE-16110 for more information.";<a name="line.283"></a>
+<span class="sourceLineNo">284</span>      LOG.error(msg, e);<a name="line.284"></a>
+<span class="sourceLineNo">285</span>      throw new Error(msg, e);<a name="line.285"></a>
+<span class="sourceLineNo">286</span>    }<a name="line.286"></a>
+<span class="sourceLineNo">287</span>    @SuppressWarnings("unchecked")<a name="line.287"></a>
+<span class="sourceLineNo">288</span>    Enum&lt;?&gt; disabledECN = Enum.valueOf(ecnClass, "DISABLED");<a name="line.288"></a>
+<span class="sourceLineNo">289</span>    Method getReplyMethod = PipelineAckProto.class.getMethod("getReply", int.class);<a name="line.289"></a>
+<span class="sourceLineNo">290</span>    Method combineHeaderMethod =<a name="line.290"></a>
+<span class="sourceLineNo">291</span>        PipelineAck.class.getMethod("combineHeader", ecnClass, Status.class);<a name="line.291"></a>
+<span class="sourceLineNo">292</span>    Method getStatusFromHeaderMethod =<a name="line.292"></a>
+<span class="sourceLineNo">293</span>        PipelineAck.class.getMethod("getStatusFromHeader", int.class);<a name="line.293"></a>
+<span class="sourceLineNo">294</span>    return new PipelineAckStatusGetter() {<a name="line.294"></a>
+<span class="sourceLineNo">295</span><a name="line.295"></a>
+<span class="sourceLineNo">296</span>      @Override<a name="line.296"></a>
+<span class="sourceLineNo">297</span>      public Status get(PipelineAckProto ack) {<a name="line.297"></a>
+<span class="sourceLineNo">298</span>        try {<a name="line.298"></a>
+<span class="sourceLineNo">299</span>          @SuppressWarnings("unchecked")<a name="line.299"></a>
+<span class="sourceLineNo">300</span>          List&lt;Integer&gt; flagList = (List&lt;Integer&gt;) getFlagListMethod.invoke(ack);<a name="line.300"></a>
+<span class="sourceLineNo">301</span>          Integer headerFlag;<a name="line.301"></a>
+<span class="sourceLineNo">302</span>          if (flagList.isEmpty()) {<a name="line.302"></a>
+<span class="sourceLineNo">303</span>            Status reply = (Status) getReplyMethod.invoke(ack, 0);<a name="line.303"></a>
+<span class="sourceLineNo">304</span>            headerFlag = (Integer) combineHeaderMethod.invoke(null, disabledECN, reply);<a name="line.304"></a>
+<span class="sourceLineNo">305</span>          } else {<a name="line.305"></a>
+<span class="sourceLineNo">306</span>            headerFlag = flagList.get(0);<a name="line.306"></a>
+<span class="sourceLineNo">307</span>          }<a name="line.307"></a>
+<span class="sourceLineNo">308</span>          return (Status) getStatusFromHeaderMethod.invoke(null, headerFlag);<a name="line.308"></a>
+<span class="sourceLineNo">309</span>        } catch (IllegalAccessException | InvocationTargetException e) {<a name="line.309"></a>
+<span class="sourceLineNo">310</span>          throw new RuntimeException(e);<a name="line.310"></a>
+<span class="sourceLineNo">311</span>        }<a name="line.311"></a>
+<span class="sourceLineNo">312</span>      }<a name="line.312"></a>
+<span class="sourceLineNo">313</span>    };<a name="line.313"></a>
+<span class="sourceLineNo">314</span>  }<a name="line.314"></a>
+<span class="sourceLineNo">315</span><a name="line.315"></a>
+<span class="sourceLineNo">316</span>  private static PipelineAckStatusGetter createPipelineAckStatusGetter26()<a name="line.316"></a>
+<span class="sourceLineNo">317</span>      throws NoSuchMethodException {<a name="line.317"></a>
+<span class="sourceLineNo">318</span>    Method getStatusMethod = PipelineAckProto.class.getMethod("getStatus", int.class);<a name="line.318"></a>
+<span class="sourceLineNo">319</span>    return new PipelineAckStatusGetter() {<a name="line.319"></a>
+<span class="sourceLineNo">320</span><a name="line.320"></a>
+<span class="sourceLineNo">321</span>      @Override<a name="line.321"></a>
+<span class="sourceLineNo">322</span>      public Status get(PipelineAckProto ack) {<a name="line.322"></a>
+<span class="sourceLineNo">323</span>        try {<a name="line.323"></a>
+<span class="sourceLineNo">324</span>          return (Status) getStatusMethod.invoke(ack, 0);<a name="line.324"></a>
+<span class="sourceLineNo">325</span>        } catch (IllegalAccessException | InvocationTargetException e) {<a name="line.325"></a>
+<span class="sourceLineNo">326</span>          throw new RuntimeException(e);<a name="line.326"></a>
+<span class="sourceLineNo">327</span>        }<a name="line.327"></a>
+<span class="sourceLineNo">328</span>      }<a name="line.328"></a>
+<span class="sourceLineNo">329</span>    };<a name="line.329"></a>
+<span class="sourceLineNo">330</span>  }<a name="line.330"></a>
+<span class="sourceLineNo">331</span><a name="line.331"></a>
+<span class="sourceLineNo">332</span>  private static PipelineAckStatusGetter createPipelineAckStatusGetter()<a name="line.332"></a>
+<span class="sourceLineNo">333</span>      throws NoSuchMethodException {<a name="line.333"></a>
+<span class="sourceLineNo">334</span>    try {<a name="line.334"></a>
+<span class="sourceLineNo">335</span>      return createPipelineAckStatusGetter27();<a name="line.335"></a>
+<span class="sourceLineNo">336</span>    } catch (NoSuchMethodException e) {<a name="line.336"></a>
+<span class="sourceLineNo">337</span>      LOG.debug("Can not get expected method " + e.getMessage() +<a name="line.337"></a>
+<span class="sourceLineNo">338</span>          ", this usually because your Hadoop is pre 2.7.0, " +<a name="line.338"></a>
+<span class="sourceLineNo">339</span>          "try the methods in Hadoop 2.6.x instead.");<a name="line.339"></a>
+<span class="sourceLineNo">340</span>    }<a name="line.340"></a>
+<span class="sourceLineNo">341</span>    return createPipelineAckStatusGetter26();<a name="line.341"></a>
+<span class="sourceLineNo">342</span>  }<a name="line.342"></a>
+<span class="sourceLineNo">343</span><a name="line.343"></a>
+<span class="sourceLineNo">344</span>  private static StorageTypeSetter createStorageTypeSetter() throws NoSuchMethodException {<a name="line.344"></a>
+<span class="sourceLineNo">345</span>    Method setStorageTypeMethod =<a name="line.345"></a>
+<span class="sourceLineNo">346</span>        OpWriteBlockProto.Builder.class.getMethod("setStorageType", StorageTypeProto.class);<a name="line.346"></a>
+<span class="sourceLineNo">347</span>    ImmutableMap.Builder&lt;String, StorageTypeProto&gt; builder = ImmutableMap.builder();<a name="line.347"></a>
+<span class="sourceLineNo">348</span>    for (StorageTypeProto storageTypeProto : StorageTypeProto.values()) {<a name="line.348"></a>
+<span class="sourceLineNo">349</span>      builder.put(storageTypeProto.name(), storageTypeProto);<a name="line.349"></a>
+<span class="sourceLineNo">350</span>    }<a name="line.350"></a>
+<span class="sourceLineNo">351</span>    ImmutableMap&lt;String, StorageTypeProto&gt; name2ProtoEnum = builder.build();<a name="line.351"></a>
+<span class="sourceLineNo">352</span>    return new StorageTypeSetter() {<a name="line.352"></a>
+<span class="sourceLineNo">353</span><a name="line.353"></a>
+<span class="sourceLineNo">354</span>      @Override<a name="line.354"></a>
+<span class="sourceLineNo">355</span>      public OpWriteBlockProto.Builder set(OpWriteBlockProto.Builder builder, Enum&lt;?&gt; storageType) {<a name="line.355"></a>
+<span class="sourceLineNo">356</span>        Object protoEnum = name2ProtoEnum.get(storageType.name());<a name="line.356"></a>
+<span class="sourceLineNo">357</span>        try {<a name="line.357"></a>
+<span class="sourceLineNo">358</span>          setStorageTypeMethod.invoke(builder, protoEnum);<a name="line.358"></a>
+<span class="sourceLineNo">359</span>        } catch (IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {<a name="line.359"></a>
+<span class="sourceLineNo">360</span>          throw new RuntimeException(e);<a name="line.360"></a>
+<span class="sourceLineNo">361</span>        }<a name="line.361"></a>
+<span class="sourceLineNo">362</span>        return builder;<a name="line.362"></a>
+<span class="sourceLineNo">363</span>      }<a name="line.363"></a>
+<span class="sourceLineNo">364</span>    };<a name="line.364"></a>
+<span class="sourceLineNo">365</span>  }<a name="line.365"></a>
+<span class="sourceLineNo">366</span><a name="line.366"></a>
+<span class="sourceLineNo">367</span>  private static BlockAdder createBlockAdder() throws NoSuchMethodException {<a name="line.367"></a>
+<span class="sourceLineNo">368</span>    for (Method method : ClientProtocol.class.getMethods()) {<a name="line.368"></a>
+<span class="sourceLineNo">369</span>      if (method.getName().equals("addBlock")) {<a name="line.369"></a>
+<span class="sourceLineNo">370</span>        Method addBlockMethod = method;<a name="line.370"></a>
+<span class="sourceLineNo">371</span>        Class&lt;?&gt;[] paramTypes = addBlockMethod.getParameterTypes();<a name="line.371"></a>
+<span class="sourceLineNo">372</span>        if (paramTypes[paramTypes.length - 1] == String[].class) {<a name="line.372"></a>
+<span class="sourceLineNo">373</span>          return new BlockAdder() {<a name="line.373"></a>
+<span class="sourceLineNo">374</span><a name="line.374"></a>
+<span class="sourceLineNo">375</span>            @Override<a name="line.375"></a>
+<span class="sourceLineNo">376</span>            public LocatedBlock addBlock(ClientProtocol namenode, String src, String clientName,<a name="line.376"></a>
+<span class="sourceLineNo">377</span>                ExtendedBlock previous, DatanodeInfo[] excludeNodes, long fileId,<a name="line.377"></a>
+<span class="sourceLineNo">378</span>                String[] favoredNodes) throws IOException {<a name="line.378"></a>
+<span class="sourceLineNo">379</span>              try {<a name="line.379"></a>
+<span class="sourceLineNo">380</span>                return (LocatedBlock) addBlockMethod.invoke(namenode, src, clientName, previous,<a name="line.380"></a>
+<span class="sourceLineNo">381</span>                  excludeNodes, fileId, favoredNodes);<a name="line.381"></a>
+<span class="sourceLineNo">382</span>              } catch (IllegalAccessException e) {<a name="line.382"></a>
+<span class="sourceLineNo">383</span>                throw new RuntimeException(e);<a name="line.383"></a>
+<span class="sourceLineNo">384</span>              } catch (InvocationTargetException e) {<a name="line.384"></a>
+<span class="sourceLineNo">385</span>                Throwables.propagateIfPossible(e.getTargetException(), IOException.class);<a name="line.385"></a>
+<span class="sourceLineNo">386</span>                throw new RuntimeException(e);<a name="line.386"></a>
+<span class="sourceLineNo">387</span>              }<a name="line.387"></a>
+<span class="sourceLineNo">388</span>            }<a name="line.388"></a>
+<span class="sourceLineNo">389</span>          };<a name="line.389"></a>
+<span class="sourceLineNo">390</span>        } else {<a name="line.390"></a>
+<span class="sourceLineNo">391</span>          return new BlockAdder() {<a name="line.391"></a>
+<span class="sourceLineNo">392</span><a name="line.392"></a>
+<span class="sourceLineNo">393</span>            @Override<a name="line.393"></a>
+<span class="sourceLineNo">394</span>            public LocatedBlock addBlock(ClientProtocol namenode, String src, String clientName,<a name="line.394"></a>
+<span class="sourceLineNo">395</span>                ExtendedBlock previous, DatanodeInfo[] excludeNodes, long fileId,<a name="line.395"></a>
+<span class="sourceLineNo">396</span>                String[] favoredNodes) throws IOException {<a name="line.396"></a>
+<span class="sourceLineNo">397</span>              try {<a name="line.397"></a>
+<span class="sourceLineNo">398</span>                return (LocatedBlock) addBlockMethod.invoke(namenode, src, clientName, previous,<a name="line.398"></a>
+<span class="sourceLineNo">399</span>                  excludeNodes, fileId, favoredNodes, null);<a name="line.399"></a>
+<span class="sourceLineNo">400</span>              } catch (IllegalAccessException e) {<a name="line.400"></a>
+<span class="sourceLineNo">401</span>                throw new RuntimeException(e);<a name="line.401"></a>
+<span class="sourceLineNo">402</span>              } catch (InvocationTargetException e) {<a name="line.402"></a>
+<span class="sourceLineNo">403</span>                Throwables.propagateIfPossible(e.getTargetException(), IOException.class);<a name="line.403"></a>
+<span class="sourceLineNo">404</span>                throw new RuntimeException(e);<a name="line.404"></a>
+<span class="sourceLineNo">405</span>              }<a name="line.405"></a>
+<span class="sourceLineNo">406</span>            }<a name="line.406"></a>
+<span class="sourceLineNo">407</span>          };<a name="line.407"></a>
+<span class="sourceLineNo">408</span>        }<a name="line.408"></a>
+<span class="sourceLineNo">409</span>      }<a name="line.409"></a>
+<span class="sourceLineNo">410</span>    }<a name="line.410"></a>
+<span class="sourceLineNo">411</span>    throw new NoSuchMethodException("Can not find addBlock method in ClientProtocol");<a name="line.411"></a>
+<span class="sourceLineNo">412</span>  }<a name="line.412"></a>
+<span class="sourceLineNo">413</span><a name="line.413"></a>
+<span class="sourceLineNo">414</span>  private static PBHelper createPBHelper() throws NoSuchMethodException {<a name="line.414"></a>
+<span class="sourceLineNo">415</span>    Class&lt;?&gt; helperClass;<a name="line.415"></a>
+<span class="sourceLineNo">416</span>    String clazzName = "org.apache.hadoop.hdfs.protocolPB.PBHelperClient";<a name="line.416"></a>
+<span class="sourceLineNo">417</span>    try {<a name="line.417"></a>
+<span class="sourceLineNo">418</span>      helperClass = Class.forName(clazzName);<a name="line.418"></a>
+<span class="sourceLineNo">419</span>    } catch (ClassNotFoundException e) {<a name="line.419"></a>
+<span class="sourceLineNo">420</span>      helperClass = org.apache.hadoop.hdfs.protocolPB.PBHelper.class;<a name="line.420"></a>
+<span class="sourceLineNo">421</span>      LOG.debug("" + clazzName + " not found (Hadoop is pre-2.8.0?); using " +<a name="line.421"></a>
+<span class="sourceLineNo">422</span>          helperClass.toString() + " instead.");<a name="line.422"></a>
+<span class="sourceLineNo">423</span>    }<a name="line.423"></a>
+<span class="sourceLineNo">424</span>    Method convertEBMethod = helperClass.getMethod("convert", ExtendedBlock.class);<a name="line.424"></a>
+<span class="sourceLineNo">425</span>    Method convertTokenMethod = helperClass.getMethod("convert", Token.class);<a name="line.425"></a>
+<span class="sourceLineNo">426</span>    return new PBHelper() {<a name="line.426"></a>
+<span class="sourceLineNo">427</span><a name="line.427"></a>
+<span class="sourceLineNo">428</span>      @Override<a name="line.428"></a>
+<span class="sourceLineNo">429</span>      public ExtendedBlockProto convert(ExtendedBlock b) {<a name="line.429"></a>
+<span class="sourceLineNo">430</span>        try {<a name="line.430"></a>
+<span class="sourceLineNo">431</span>          return (ExtendedBlockProto) convertEBMethod.invoke(null, b);<a name="line.431"></a>
+<span class="sourceLineNo">432</span>        } catch (IllegalAccessException | InvocationTargetException e) {<a name="line.432"></a>
+<span class="sourceLineNo">433</span>          throw new RuntimeException(e);<a name="line.433"></a>
+<span class="sourceLineNo">434</span>        }<a name="line.434"></a>
+<span class="sourceLineNo">435</span>      }<a name="line.435"></a>
+<span class="sourceLineNo">436</span><a name="line.436"></a>
+<span class="sourceLineNo">437</span>      @Override<a name="line.437"></a>
+<span class="sourceLineNo">438</span>      public TokenProto convert(Token&lt;?&gt; tok) {<a name="line.438"></a>
+<span class="sourceLineNo">439</span>        try {<a name="line.439"></a>
+<span class="sourceLineNo">440</span>          return (TokenProto) convertTokenMethod.invoke(null, tok);<a name="line.440"></a>
+<span class="sourceLineNo">441</span>        } catch (IllegalAccessException | InvocationTargetException e) {<a name="line.441"></a>
+<span class="sourceLineNo">442</span>          throw new RuntimeException(e);<a name="line.442"></a>
+<span class="sourceLineNo">443</span>        }<a name="line.443"></a>
+<span class="sourceLineNo">444</span>      }<a name="line.444"></a>
+<span class="sourceLineNo">445</span>    };<a name="line.445"></a>
+<span class="sourceLineNo">446</span>  }<a name="line.446"></a>
+<span class="sourceLineNo">447</span><a name="line.447"></a>
+<span class="sourceLineNo">448</span>  private static ChecksumCreater createChecksumCreater28(Method getConfMethod, Class&lt;?&gt; confClass)<a name="line.448"></a>
+<span class="sourceLineNo">449</span>      throws NoSuchMethodException {<a name="line.449"></a>
+<span class="sourceLineNo">450</span>    for (Method method : confClass.getMethods()) {<a name="line.450"></a>
+<span class="sourceLineNo">451</span>      if (method.getName().equals("createChecksum")) {<a name="line.451"></a>
+<span class="sourceLineNo">452</span>        Method createChecksumMethod = method;<a name="line.452"></a>
+<span class="sourceLineNo">453</span>        return new ChecksumCreater() {<a name="line.453"></a>
+<span class="sourceLineNo">454</span><a name="line.454"></a>
+<span class="sourceLineNo">455</span>          @Override<a name="line.455"></a>
+<span class="sourceLineNo">456</span>          public DataChecksum createChecksum(DFSClient client) {<a name="line.456"></a>
+<span class="sourceLineNo">457</span>            try {<a name="line.457"></a>
+<span class="sourceLineNo">458</span>              return (DataChecksum) createChecksumMethod.invoke(getConfMethod.invoke(client),<a name="line.458"></a>
+<span class="sourceLineNo">459</span>                (Object) null);<a name="line.459"></a>
+<span class="sourceLineNo">460</span>            } catch (IllegalAccessException | InvocationTargetException e) {<a name="line.460"></a>
+<span class="sourceLineNo">461</span>              throw new RuntimeException(e);<a name="line.461"></a>
+<span class="sourceLineNo">462</span>            }<a name="line.462"></a>
+<span class="sourceLineNo">463</span>          }<a name="line.463"></a>
+<span class="sourceLineNo">464</span>        };<a name="line.464"></a>
+<span class="sourceLineNo">465</span>      }<a name="line.465"></a>
+<span class="sourceLineNo">466</span>    }<a name="line.466"></a>
+<span class="sourceLineNo">467</span>    throw new NoSuchMethodException("Can not find createChecksum method in DfsClientConf");<a name="line.467"></a>
+<span class="sourceLineNo">468</span>  }<a name="line.468"></a>
+<span class="sourceLineNo">469</span><a name="line.469"></a>
+<span class=

<TRUNCATED>

Mime
View raw message