http://git-wip-us.apache.org/repos/asf/hbase-site/blob/713d773f/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/FanOutOneBlockAsyncDFSOutputHelper.StorageTypeSetter.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/FanOutOneBlockAsyncDFSOutputHelper.StorageTypeSetter.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/FanOutOneBlockAsyncDFSOutputHelper.StorageTypeSetter.html index 25e368d..d0f781f 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/FanOutOneBlockAsyncDFSOutputHelper.StorageTypeSetter.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/io/asyncfs/FanOutOneBlockAsyncDFSOutputHelper.StorageTypeSetter.html @@ -25,798 +25,798 @@ <span class="sourceLineNo">017</span> */<a name="line.17"></a> <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.io.asyncfs;<a name="line.18"></a> <span class="sourceLineNo">019</span><a name="line.19"></a> -<span class="sourceLineNo">020</span>import static org.apache.hadoop.hbase.shaded.io.netty.channel.ChannelOption.CONNECT_TIMEOUT_MILLIS;<a name="line.20"></a> -<span class="sourceLineNo">021</span>import static org.apache.hadoop.hbase.shaded.io.netty.handler.timeout.IdleState.READER_IDLE;<a name="line.21"></a> -<span class="sourceLineNo">022</span>import static org.apache.hadoop.fs.CreateFlag.CREATE;<a name="line.22"></a> -<span class="sourceLineNo">023</span>import static org.apache.hadoop.fs.CreateFlag.OVERWRITE;<a name="line.23"></a> -<span class="sourceLineNo">024</span>import static org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputSaslHelper.createEncryptor;<a name="line.24"></a> -<span class="sourceLineNo">025</span>import static org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputSaslHelper.trySaslNegotiate;<a name="line.25"></a> +<span class="sourceLineNo">020</span>import static org.apache.hadoop.fs.CreateFlag.CREATE;<a name="line.20"></a> +<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.hadoop.hbase.shaded.io.netty.channel.ChannelOption.CONNECT_TIMEOUT_MILLIS;<a name="line.24"></a> +<span class="sourceLineNo">025</span>import static org.apache.hadoop.hbase.shaded.io.netty.handler.timeout.IdleState.READER_IDLE;<a name="line.25"></a> <span class="sourceLineNo">026</span>import static org.apache.hadoop.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">030</span><a name="line.30"></a> -<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.shaded.com.google.common.base.Throwables;<a name="line.31"></a> -<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.shaded.com.google.common.collect.ImmutableMap;<a name="line.32"></a> -<span class="sourceLineNo">033</span>import com.google.protobuf.CodedOutputStream;<a name="line.33"></a> -<span class="sourceLineNo">034</span><a name="line.34"></a> -<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.shaded.io.netty.bootstrap.Bootstrap;<a name="line.35"></a> -<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.shaded.io.netty.buffer.ByteBuf;<a name="line.36"></a> -<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.shaded.io.netty.buffer.ByteBufAllocator;<a name="line.37"></a> -<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.shaded.io.netty.buffer.ByteBufOutputStream;<a name="line.38"></a> -<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.shaded.io.netty.buffer.PooledByteBufAllocator;<a name="line.39"></a> -<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.shaded.io.netty.channel.Channel;<a name="line.40"></a> -<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.shaded.io.netty.channel.ChannelFuture;<a name="line.41"></a> -<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.shaded.io.netty.channel.ChannelFutureListener;<a name="line.42"></a> -<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.shaded.io.netty.channel.ChannelHandler;<a name="line.43"></a> -<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.shaded.io.netty.channel.ChannelHandlerContext;<a name="line.44"></a> -<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.shaded.io.netty.channel.ChannelInitializer;<a name="line.45"></a> -<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.shaded.io.netty.channel.ChannelPipeline;<a name="line.46"></a> -<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.shaded.io.netty.channel.EventLoop;<a name="line.47"></a> -<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.shaded.io.netty.channel.SimpleChannelInboundHandler;<a name="line.48"></a> -<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.shaded.io.netty.handler.codec.protobuf.ProtobufDecoder;<a name="line.49"></a> -<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.shaded.io.netty.handler.codec.protobuf.ProtobufVarint32FrameDecoder;<a name="line.50"></a> -<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.shaded.io.netty.handler.timeout.IdleStateEvent;<a name="line.51"></a> -<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.shaded.io.netty.handler.timeout.IdleStateHandler;<a name="line.52"></a> -<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.shaded.io.netty.util.concurrent.Future;<a name="line.53"></a> -<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.shaded.io.netty.util.concurrent.FutureListener;<a name="line.54"></a> -<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.shaded.io.netty.util.concurrent.Promise;<a name="line.55"></a> -<span class="sourceLineNo">056</span><a name="line.56"></a> -<span class="sourceLineNo">057</span>import java.io.IOException;<a name="line.57"></a> -<span class="sourceLineNo">058</span>import java.lang.reflect.InvocationTargetException;<a name="line.58"></a> -<span class="sourceLineNo">059</span>import java.lang.reflect.Method;<a name="line.59"></a> -<span class="sourceLineNo">060</span>import java.util.ArrayList;<a name="line.60"></a> -<span class="sourceLineNo">061</span>import java.util.EnumSet;<a name="line.61"></a> -<span class="sourceLineNo">062</span>import java.util.List;<a name="line.62"></a> -<span class="sourceLineNo">063</span>import java.util.concurrent.TimeUnit;<a name="line.63"></a> -<span class="sourceLineNo">064</span><a name="line.64"></a> -<span class="sourceLineNo">065</span>import org.apache.commons.logging.Log;<a name="line.65"></a> -<span class="sourceLineNo">066</span>import org.apache.commons.logging.LogFactory;<a name="line.66"></a> -<span class="sourceLineNo">067</span>import org.apache.hadoop.conf.Configuration;<a name="line.67"></a> -<span class="sourceLineNo">068</span>import org.apache.hadoop.crypto.CryptoProtocolVersion;<a name="line.68"></a> -<span class="sourceLineNo">069</span>import org.apache.hadoop.crypto.Encryptor;<a name="line.69"></a> -<span class="sourceLineNo">070</span>import org.apache.hadoop.fs.CreateFlag;<a name="line.70"></a> -<span class="sourceLineNo">071</span>import org.apache.hadoop.fs.FileSystem;<a name="line.71"></a> -<span class="sourceLineNo">072</span>import org.apache.hadoop.fs.FileSystemLinkResolver;<a name="line.72"></a> -<span class="sourceLineNo">073</span>import org.apache.hadoop.fs.Path;<a name="line.73"></a> -<span class="sourceLineNo">074</span>import org.apache.hadoop.fs.UnresolvedLinkException;<a name="line.74"></a> -<span class="sourceLineNo">075</span>import org.apache.hadoop.fs.permission.FsPermission;<a name="line.75"></a> -<span class="sourceLineNo">076</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.76"></a> -<span class="sourceLineNo">077</span>import org.apache.hadoop.hbase.client.ConnectionUtils;<a name="line.77"></a> -<span class="sourceLineNo">078</span>import org.apache.hadoop.hbase.util.CancelableProgressable;<a name="line.78"></a> -<span class="sourceLineNo">079</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.79"></a> -<span class="sourceLineNo">080</span>import org.apache.hadoop.hdfs.DFSClient;<a name="line.80"></a> -<span class="sourceLineNo">081</span>import org.apache.hadoop.hdfs.DFSOutputStream;<a name="line.81"></a> -<span class="sourceLineNo">082</span>import org.apache.hadoop.hdfs.DistributedFileSystem;<a name="line.82"></a> -<span class="sourceLineNo">083</span>import org.apache.hadoop.hdfs.protocol.ClientProtocol;<a name="line.83"></a> -<span class="sourceLineNo">084</span>import org.apache.hadoop.hdfs.protocol.DatanodeInfo;<a name="line.84"></a> -<span class="sourceLineNo">085</span>import org.apache.hadoop.hdfs.protocol.ExtendedBlock;<a name="line.85"></a> -<span class="sourceLineNo">086</span>import org.apache.hadoop.hdfs.protocol.HdfsFileStatus;<a name="line.86"></a> -<span class="sourceLineNo">087</span>import org.apache.hadoop.hdfs.protocol.LocatedBlock;<a name="line.87"></a> -<span class="sourceLineNo">088</span>import org.apache.hadoop.hdfs.protocol.datatransfer.BlockConstructionStage;<a name="line.88"></a> -<span class="sourceLineNo">089</span>import org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil;<a name="line.89"></a> -<span class="sourceLineNo">090</span>import org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtocol;<a name="line.90"></a> -<span class="sourceLineNo">091</span>import org.apache.hadoop.hdfs.protocol.datatransfer.Op;<a name="line.91"></a> -<span class="sourceLineNo">092</span>import org.apache.hadoop.hdfs.protocol.datatransfer.PipelineAck;<a name="line.92"></a> -<span class="sourceLineNo">093</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.BaseHeaderProto;<a name="line.93"></a> -<span class="sourceLineNo">094</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.BlockOpResponseProto;<a name="line.94"></a> -<span class="sourceLineNo">095</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.CachingStrategyProto;<a name="line.95"></a> -<span class="sourceLineNo">096</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.ChecksumProto;<a name="line.96"></a> -<span class="sourceLineNo">097</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.ClientOperationHeaderProto;<a name="line.97"></a> -<span class="sourceLineNo">098</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.OpWriteBlockProto;<a name="line.98"></a> -<span class="sourceLineNo">099</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.PipelineAckProto;<a name="line.99"></a> -<span class="sourceLineNo">100</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.Status;<a name="line.100"></a> -<span class="sourceLineNo">101</span>import org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto;<a name="line.101"></a> -<span class="sourceLineNo">102</span>import org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.StorageTypeProto;<a name="line.102"></a> -<span class="sourceLineNo">103</span>import org.apache.hadoop.hdfs.security.token.block.BlockTokenIdentifier;<a name="line.103"></a> -<span class="sourceLineNo">104</span>import org.apache.hadoop.hdfs.security.token.block.InvalidBlockTokenException;<a name="line.104"></a> -<span class="sourceLineNo">105</span>import org.apache.hadoop.hdfs.server.namenode.LeaseExpiredException;<a name="line.105"></a> -<span class="sourceLineNo">106</span>import org.apache.hadoop.io.EnumSetWritable;<a name="line.106"></a> -<span class="sourceLineNo">107</span>import org.apache.hadoop.ipc.RemoteException;<a name="line.107"></a> -<span class="sourceLineNo">108</span>import org.apache.hadoop.net.NetUtils;<a name="line.108"></a> -<span class="sourceLineNo">109</span>import org.apache.hadoop.security.proto.SecurityProtos.TokenProto;<a name="line.109"></a> -<span class="sourceLineNo">110</span>import org.apache.hadoop.security.token.Token;<a name="line.110"></a> -<span class="sourceLineNo">111</span>import org.apache.hadoop.util.DataChecksum;<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><a name="line.118"></a> -<span class="sourceLineNo">119</span> private static final Log LOG = LogFactory.getLog(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">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<?> 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">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">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">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">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<?> 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(Object conf);<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<CreateFlag> flag,<a name="line.202"></a> -<span class="sourceLineNo">203</span> boolean createParent, short replication, long blockSize,<a name="line.203"></a> -<span class="sourceLineNo">204</span> CryptoProtocolVersion[] supportedVersions) 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,<a name="line.217"></a> -<span class="sourceLineNo">218</span> String clientName, EnumSetWritable<CreateFlag> flag,<a name="line.218"></a> -<span class="sourceLineNo">219</span> boolean createParent, short replication, long blockSize,<a name="line.219"></a> -<span class="sourceLineNo">220</span> CryptoProtocolVersion[] supportedVersions) throws Exception;<a name="line.220"></a> -<span class="sourceLineNo">221</span> }<a name="line.221"></a> -<span class="sourceLineNo">222</span><a name="line.222"></a> -<span class="sourceLineNo">223</span> private static final FileCreator FILE_CREATOR;<a name="line.223"></a> -<span class="sourceLineNo">224</span><a name="line.224"></a> -<span class="sourceLineNo">225</span> private static DFSClientAdaptor createDFSClientAdaptor() throws NoSuchMethodException {<a name="line.225"></a> -<span class="sourceLineNo">226</span> Method isClientRunningMethod = DFSClient.class.getDeclaredMethod("isClientRunning");<a name="line.226"></a> -<span class="sourceLineNo">227</span> isClientRunningMethod.setAccessible(true);<a name="line.227"></a> -<span class="sourceLineNo">228</span> return new DFSClientAdaptor() {<a name="line.228"></a> -<span 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public void begin(DFSClient client, long inodeId) {<a name="line.250"></a> -<span class="sourceLineNo">251</span> try {<a name="line.251"></a> -<span class="sourceLineNo">252</span> beginFileLeaseMethod.invoke(client, inodeId, null);<a name="line.252"></a> -<span class="sourceLineNo">253</span> } catch (IllegalAccessException | InvocationTargetException e) {<a name="line.253"></a> -<span class="sourceLineNo">254</span> throw new RuntimeException(e);<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><a name="line.257"></a> -<span class="sourceLineNo">258</span> @Override<a name="line.258"></a> -<span class="sourceLineNo">259</span> public void end(DFSClient client, long inodeId) {<a name="line.259"></a> -<span class="sourceLineNo">260</span> try {<a name="line.260"></a> -<span class="sourceLineNo">261</span> endFileLeaseMethod.invoke(client, 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Please "<a name="line.278"></a> -<span class="sourceLineNo">279</span> + "update your WAL Provider to not make use of the 'asyncfs' provider. See "<a name="line.279"></a> -<span class="sourceLineNo">280</span> + "HBASE-16110 for more information.";<a name="line.280"></a> -<span class="sourceLineNo">281</span> LOG.error(msg, e);<a name="line.281"></a> -<span class="sourceLineNo">282</span> throw new Error(msg, e);<a name="line.282"></a> -<span class="sourceLineNo">283</span> }<a name="line.283"></a> -<span class="sourceLineNo">284</span> @SuppressWarnings("unchecked")<a name="line.284"></a> -<span class="sourceLineNo">285</span> Enum<?> disabledECN = Enum.valueOf(ecnClass, "DISABLED");<a name="line.285"></a> -<span class="sourceLineNo">286</span> Method getReplyMethod = PipelineAckProto.class.getMethod("getReply", int.class);<a name="line.286"></a> -<span class="sourceLineNo">287</span> Method combineHeaderMethod =<a name="line.287"></a> -<span class="sourceLineNo">288</span> PipelineAck.class.getMethod("combineHeader", ecnClass, Status.class);<a name="line.288"></a> -<span class="sourceLineNo">289</span> Method 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name="line.674"></a> -<span class="sourceLineNo">675</span> int timeoutMs = conf.getInt(DFS_CLIENT_SOCKET_TIMEOUT_KEY, READ_TIMEOUT);<a name="line.675"></a> -<span class="sourceLineNo">676</span> ExtendedBlock blockCopy = new ExtendedBlock(locatedBlock.getBlock());<a name="line.676"></a> -<span class="sourceLineNo">677</span> blockCopy.setNumBytes(locatedBlock.getBlockSize());<a name="line.677"></a> -<span class="sourceLineNo">678</span> ClientOperationHeaderProto header = ClientOperationHeaderProto.newBuilder()<a name="line.678"></a> -<span class="sourceLineNo">679</span> .setBaseHeader(BaseHeaderProto.newBuilder().setBlock(PB_HELPER.convert(blockCopy))<a name="line.679"></a> -<span class="sourceLineNo">680</span> .setToken(PB_HELPER.convert(locatedBlock.getBlockToken())))<a name="line.680"></a> -<span class="sourceLineNo">681</span> .setClientName(clientName).build();<a name="line.681"></a> -<span class="sourceLineNo">682</span> ChecksumProto checksumProto = DataTransferProtoUtil.toProto(summer);<a name="line.682"></a> -<span class="sourceLineNo">683</span> OpWriteBlockProto.Builder writeBlockProtoBuilder = OpWriteBlockProto.newBuilder()<a name="line.683"></a> -<span class="sourceLineNo">684</span> .setHeader(header).setStage(OpWriteBlockProto.BlockConstructionStage.valueOf(stage.name()))<a name="line.684"></a> -<span class="sourceLineNo">685</span> .setPipelineSize(1).setMinBytesRcvd(locatedBlock.getBlock().getNumBytes())<a name="line.685"></a> -<span class="sourceLineNo">686</span> .setMaxBytesRcvd(maxBytesRcvd).setLatestGenerationStamp(latestGS)<a name="line.686"></a> -<span class="sourceLineNo">687</span> .setRequestedChecksum(checksumProto)<a name="line.687"></a> -<span class="sourceLineNo">688</span> .setCachingStrategy(CachingStrategyProto.newBuilder().setDropBehind(true).build());<a name="line.688"></a> -<span class="sourceLineNo">689</span> List<Future<Channel>> futureList = new ArrayList<>(datanodeInfos.length);<a name="line.689"></a> -<span class="sourceLineNo">690</span> for (int i = 0; i < datanodeInfos.length; i++) {<a name="line.690"></a> -<span class="sourceLineNo">691</span> DatanodeInfo dnInfo = datanodeInfos[i];<a name="line.691"></a> -<span class="sourceLineNo">692</span> Enum<?> storageType = storageTypes[i];<a name="line.692"></a> -<span class="sourceLineNo">693</span> Promise<Channel> promise = eventLoop.newPromise();<a name="line.693"></a> -<span class="sourceLineNo">694</span> futureList.add(promise);<a name="line.694"></a> -<span class="sourceLineNo">695</span> String dnAddr = dnInfo.getXferAddr(connectToDnViaHostname);<a name="line.695"></a> -<span class="sourceLineNo">696</span> new Bootstrap().group(eventLoop).channel(channelClass)<a name="line.696"></a> -<span class="sourceLineNo">697</span> .option(CONNECT_TIMEOUT_MILLIS, timeoutMs).handler(new ChannelInitializer<Channel>() {<a name="line.697"></a> -<span class="sourceLineNo">698</span><a name="line.698"></a> -<span class="sourceLineNo">699</span> @Override<a name="line.699"></a> -<span class="sourceLineNo">700</span> protected void initChannel(Channel ch) throws Exception {<a name="line.700"></a> -<span class="sourceLineNo">701</span> // we need to get the remote address of the channel so we can only move on after<a name="line.701"></a> -<span class="sourceLineNo">702</span> // channel connected. Leave an empty implementation here because netty does not allow<a name="line.702"></a> -<span class="sourceLineNo">703</span> // a null handler.<a name="line.703"></a> -<span class="sourceLineNo">704</span> }<a name="line.704"></a> -<span class="sourceLineNo">705</span> }).connect(NetUtils.createSocketAddr(dnAddr)).addListener(new ChannelFutureListener() {<a name="line.705"></a> -<span class="sourceLineNo">706</span><a name="line.706"></a> -<span class="sourceLineNo">707</span> @Override<a name="line.707"></a> -<span class="sourceLineNo">708</span> public void operationComplete(ChannelFuture future) throws Exception {<a name="line.708"></a> -<span class="sourceLineNo">709</span> if (future.isSuccess()) {<a name="line.709"></a> -<span class="sourceLineNo">710</span> initialize(conf, future.channel(), dnInfo, storageType, writeBlockProtoBuilder,<a name="line.710"></a> -<span class="sourceLineNo">711</span> timeoutMs, client, locatedBlock.getBlockToken(), promise);<a name="line.711"></a> -<span class="sourceLineNo">712</span> } else {<a name="line.712"></a> -<span class="sourceLineNo">713</span> promise.tryFailure(future.cause());<a name="line.713"></a> -<span class="sourceLineNo">714</span> }<a name="line.714"></a> -<span class="sourceLineNo">715</span> }<a name="line.715"></a> -<span class="sourceLineNo">716</span> });<a name="line.716"></a> -<span class="sourceLineNo">717</span> }<a name="line.717"></a> -<span class="sourceLineNo">718</span> return futureList;<a name="line.718"></a> -<span class="sourceLineNo">719</span> }<a name="line.719"></a> -<span class="sourceLineNo">720</span><a name="line.720"></a> -<span class="sourceLineNo">721</span> /**<a name="line.721"></a> -<span class="sourceLineNo">722</span> * Exception other than RemoteException thrown when calling create on namenode<a name="line.722"></a> -<span class="sourceLineNo">723</span> */<a name="line.723"></a> -<span class="sourceLineNo">724</span> public static class NameNodeException extends IOException {<a name="line.724"></a> -<span class="sourceLineNo">725</span><a name="line.725"></a> -<span class="sourceLineNo">726</span> private static final long serialVersionUID = 3143237406477095390L;<a name="line.726"></a> -<span class="sourceLineNo">727</span><a name="line.727"></a> -<span class="sourceLineNo">728</span> public NameNodeException(Throwable cause) {<a name="line.728"></a> -<span class="sourceLineNo">729</span> super(cause);<a name="line.729"></a> -<span class="sourceLineNo">730</span> }<a name="line.730"></a> -<span class="sourceLineNo">731</span> }<a name="line.731"></a> -<span class="sourceLineNo">732</span><a name="line.732"></a> -<span class="sourceLineNo">733</span> private static FanOutOneBlockAsyncDFSOutput createOutput(DistributedFileSystem dfs, String src,<a name="line.733"></a> -<span class="sourceLineNo">734</span> boolean overwrite, boolean createParent, short replication, long blockSize,<a name="line.734"></a> -<span class="sourceLineNo">735</span> EventLoop eventLoop, Class<? extends Channel> channelClass) throws IOException {<a name="line.735"></a> -<span class="sourceLineNo">736</span> Configuration conf = dfs.getConf();<a name="line.736"></a> -<span class="sourceLineNo">737</span> FSUtils fsUtils = FSUtils.getInstance(dfs, conf);<a name="line.737"></a> -<span class="sourceLineNo">738</span> DFSClient client = dfs.getClient();<a name="line.738"></a> -<span class="sourceLineNo">739</span> String clientName = client.getClientName();<a name="line.739"></a> -<span class="sourceLineNo">740</span> ClientProtocol namenode = client.getNamenode();<a name="line.740"></a> -<span class="sourceLineNo">741</span> HdfsFileStatus stat;<a name="line.741"></a> -<span class="sourceLineNo">742</span> try {<a name="line.742"></a> -<span class="sourceLineNo">743</span> stat = FILE_CREATOR.create(namenode, src,<a name="line.743"></a> -<span class="sourceLineNo">744</span> FsPermission.getFileDefault().applyUMask(FsPermission.getUMask(conf)), clientName,<a name="line.744"></a> -<span class="sourceLineNo">745</span> new EnumSetWritable<>(overwrite ? EnumSet.of(CREATE, OVERWRITE) : EnumSet.of(CREATE)),<a name="line.745"></a> -<span class="sourceLineNo">746</span> createParent, replication, blockSize, CryptoProtocolVersion.supported());<a name="line.746"></a> -<span class="sourceLineNo">747</span> } catch (Exception e) {<a name="line.747"></a> -<span class="sourceLineNo">748</span> if (e instanceof RemoteException) {<a name="line.748"></a> -<span class="sourceLineNo">749</span> throw (RemoteException) e;<a name="line.749"></a> -<span class="sourceLineNo">750</span> } else {<a name="line.750"></a> -<span class="sourceLineNo">751</span> throw new NameNodeException(e);<a name="line.751"></a> -<span class="sourceLineNo">752</span> }<a name="line.752"></a> -<span class="sourceLineNo">753</span> }<a name="line.753"></a> -<span class="sourceLineNo">754</span> beginFileLease(client, stat.getFileId());<a name="line.754"></a> -<span class="sourceLineNo">755</span> boolean succ = false;<a name="line.755"></a> -<span class="sourceLineNo">756</span> LocatedBlock locatedBlock = null;<a name="line.756"></a> -<span class="sourceLineNo">757</span> List<Future<Channel>> futureList = null;<a name="line.757"></a> -<span class="sourceLineNo">758</span> try {<a name="line.758"></a> -<span class="sourceLineNo">759</span> DataChecksum summer = createChecksum(client);<a name="line.759"></a> -<span class="sourceLineNo">760</span> locatedBlock = BLOCK_ADDER.addBlock(namenode, src, client.getClientName(), null, null,<a name="line.760"></a> -<span class="sourceLineNo">761</span> stat.getFileId(), null);<a name="line.761"></a> -<span class="sourceLineNo">762</span> List<Channel> datanodeList = new ArrayList<>();<a name="line.762"></a> -<span class="sourceLineNo">763</span> futureList = connectToDataNodes(conf, client, clientName, locatedBlock, 0L, 0L,<a name="line.763"></a> -<span class="sourceLineNo">764</span> PIPELINE_SETUP_CREATE, summer, eventLoop, channelClass);<a name="line.764"></a> -<span class="sourceLineNo">765</span> for (Future<Channel> future : futureList) {<a name="line.765"></a> -<span class="sourceLineNo">766</span> // fail the creation if there are connection failures since we are fail-fast. The upper<a name="line.766"></a> -<span class="sourceLineNo">767</span> // layer should retry itself if needed.<a name="line.767"></a> -<span class="sourceLineNo">768</span> datanodeList.add(future.syncUninterruptibly().getNow());<a name="line.768"></a> -<span class="sourceLineNo">769</span> }<a name="line.769"></a> -<span class="sourceLineNo">770</span> Encryptor encryptor = createEncryptor(conf, stat, client);<a name="line.770"></a> -<span class="sourceLineNo">771</span> FanOutOneBlockAsyncDFSOutput output =<a name="line.771"></a> -<span class="sourceLineNo">772</span> new FanOutOneBlockAsyncDFSOutput(conf, fsUtils, dfs, client, namenode, clientName, src,<a name="line.772"></a> -<span class="sourceLineNo">773</span> stat.getFileId(), locatedBlock, encryptor, eventLoop, datanodeList, summer, ALLOC);<a name="line.773"></a> -<span class="sourceLineNo">774</span> succ = true;<a name="line.774"></a> -<span class="sourceLineNo">775</span> return output;<a name="line.775"></a> -<span class="sourceLineNo">776</span> } finally {<a name="line.776"></a> -<span class="sourceLineNo">777</span> if (!succ) {<a name="line.777"></a> -<span class="sourceLineNo">778</span> if (futureList != null) {<a name="line.778"></a> -<span class="sourceLineNo">779</span> for (Future<Channel> f : futureList) {<a name="line.779"></a> -<span class="sourceLineNo">780</span> f.addListener(new FutureListener<Channel>() {<a name="line.780"></a> -<span class="sourceLineNo">781</span><a name="line.781"></a> -<span class="sourceLineNo">782</span> @Override<a name="line.782"></a> -<span class="sourceLineNo">783</span> public void operationComplete(Future<Channel> future) throws Exception {<a name="line.783"></a> -<span class="sourceLineNo">784</span> if (future.isSuccess()) {<a name="line.784"></a> -<span class="sourceLineNo">785</span> future.getNow().close();<a name="line.785"></a> -<span class="sourceLineNo">786</span> }<a name="line.786"></a> -<span class="sourceLineNo">787</span> }<a name="line.787"></a> -<span class="sourceLineNo">788</span> });<a name="line.788"></a> -<span class="sourceLineNo">789</span> }<a name="line.789"></a> -<span class="sourceLineNo">790</span> }<a name="line.790"></a> -<span class="sourceLineNo">791</span> endFileLease(client, stat.getFileId());<a name="line.791"></a> -<span class="sourceLineNo">792</span> fsUtils.recoverFileLease(dfs, new Path(src), conf, new CancelOnClose(client));<a name="line.792"></a> -<span class="sourceLineNo">793</span> }<a name="line.793"></a> -<span class="sourceLineNo">794</span> }<a name="line.794"></a> -<span class="sourceLineNo">795</span> }<a name="line.795"></a> -<span class="sourceLineNo">796</span><a name="line.796"></a> -<span class="sourceLineNo">797</span> /**<a name="line.797"></a> -<span class="sourceLineNo">798</span> * Create a {@link FanOutOneBlockAsyncDFSOutput}. The method maybe blocked so do not call it<a name="line.798"></a> -<span class="sourceLineNo">799</span> * inside {@link EventLoop}.<a name="line.799"></a> -<span class="sourceLineNo">800</span> * @param eventLoop all connections to datanode will use the same event loop.<a name="line.800"></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">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">041</span>import org.apache.commons.logging.Log;<a name="line.41"></a> +<span class="sourceLineNo">042</span>import org.apache.commons.logging.LogFactory;<a name="line.42"></a> +<span class="sourceLineNo">043</span>import org.apache.hadoop.conf.Configuration;<a name="line.43"></a> +<span class="sourceLineNo">044</span>import org.apache.hadoop.crypto.CryptoProtocolVersion;<a name="line.44"></a> +<span class="sourceLineNo">045</span>import org.apache.hadoop.crypto.Encryptor;<a name="line.45"></a> +<span class="sourceLineNo">046</span>import org.apache.hadoop.fs.CreateFlag;<a name="line.46"></a> +<span class="sourceLineNo">047</span>import org.apache.hadoop.fs.FileSystem;<a name="line.47"></a> +<span class="sourceLineNo">048</span>import org.apache.hadoop.fs.FileSystemLinkResolver;<a name="line.48"></a> +<span class="sourceLineNo">049</span>import org.apache.hadoop.fs.Path;<a name="line.49"></a> +<span class="sourceLineNo">050</span>import org.apache.hadoop.fs.UnresolvedLinkException;<a name="line.50"></a> +<span class="sourceLineNo">051</span>import org.apache.hadoop.fs.permission.FsPermission;<a name="line.51"></a> +<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.client.ConnectionUtils;<a name="line.52"></a> +<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.util.CancelableProgressable;<a name="line.53"></a> +<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.54"></a> +<span class="sourceLineNo">055</span>import org.apache.hadoop.hdfs.DFSClient;<a name="line.55"></a> +<span class="sourceLineNo">056</span>import org.apache.hadoop.hdfs.DFSOutputStream;<a name="line.56"></a> +<span class="sourceLineNo">057</span>import org.apache.hadoop.hdfs.DistributedFileSystem;<a name="line.57"></a> +<span class="sourceLineNo">058</span>import org.apache.hadoop.hdfs.protocol.ClientProtocol;<a name="line.58"></a> +<span class="sourceLineNo">059</span>import org.apache.hadoop.hdfs.protocol.DatanodeInfo;<a name="line.59"></a> +<span class="sourceLineNo">060</span>import org.apache.hadoop.hdfs.protocol.ExtendedBlock;<a name="line.60"></a> +<span class="sourceLineNo">061</span>import org.apache.hadoop.hdfs.protocol.HdfsFileStatus;<a name="line.61"></a> +<span class="sourceLineNo">062</span>import org.apache.hadoop.hdfs.protocol.LocatedBlock;<a name="line.62"></a> +<span class="sourceLineNo">063</span>import org.apache.hadoop.hdfs.protocol.datatransfer.BlockConstructionStage;<a name="line.63"></a> +<span class="sourceLineNo">064</span>import org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil;<a name="line.64"></a> +<span class="sourceLineNo">065</span>import org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtocol;<a name="line.65"></a> +<span class="sourceLineNo">066</span>import org.apache.hadoop.hdfs.protocol.datatransfer.Op;<a name="line.66"></a> +<span class="sourceLineNo">067</span>import org.apache.hadoop.hdfs.protocol.datatransfer.PipelineAck;<a name="line.67"></a> +<span class="sourceLineNo">068</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.BaseHeaderProto;<a name="line.68"></a> +<span class="sourceLineNo">069</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.BlockOpResponseProto;<a name="line.69"></a> +<span class="sourceLineNo">070</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.CachingStrategyProto;<a name="line.70"></a> +<span class="sourceLineNo">071</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.ChecksumProto;<a name="line.71"></a> +<span class="sourceLineNo">072</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.ClientOperationHeaderProto;<a name="line.72"></a> +<span class="sourceLineNo">073</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.OpWriteBlockProto;<a name="line.73"></a> +<span class="sourceLineNo">074</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.PipelineAckProto;<a name="line.74"></a> +<span class="sourceLineNo">075</span>import org.apache.hadoop.hdfs.protocol.proto.DataTransferProtos.Status;<a name="line.75"></a> +<span class="sourceLineNo">076</span>import org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.ExtendedBlockProto;<a name="line.76"></a> +<span class="sourceLineNo">077</span>import org.apache.hadoop.hdfs.protocol.proto.HdfsProtos.StorageTypeProto;<a name="line.77"></a> +<span class="sourceLineNo">078</span>import org.apache.hadoop.hdfs.security.token.block.BlockTokenIdentifier;<a name="line.78"></a> +<span class="sourceLineNo">079</span>import org.apache.hadoop.hdfs.security.token.block.InvalidBlockTokenException;<a name="line.79"></a> +<span class="sourceLineNo">080</span>import org.apache.hadoop.hdfs.server.namenode.LeaseExpiredException;<a name="line.80"></a> +<span class="sourceLineNo">081</span>import org.apache.hadoop.io.EnumSetWritable;<a name="line.81"></a> +<span clas
<TRUNCATED>
