@@ -0,0 +1,1597 @@
+/**%0A * Licensed to the Apache Software Foundation (ASF) under one%0A * or more contributor license agreements.  See the NOTICE file%0A * distributed with this work for additional information%0A * regarding copyright ownership.  The ASF licenses this file%0A * to you under the Apache License, Version 2.0 (the%0A * %22License%22); you may not use this file except in compliance%0A * with the License.  You may obtain a copy of the License at%0A *%0A * http://www.apache.org/licenses/LICENSE-2.0%0A *%0A * Unless required by applicable law or agreed to in writing, software%0A * distributed under the License is distributed on an %22AS IS%22 BASIS,%0A * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.%0A * See the License for the specific language governing permissions and%0A * limitations under the License.%0A */%0Aimport org.apache.hadoop.conf.Configuration;%0Aimport org.apache.hadoop.fs.FsShell;%0Aimport org.apache.hadoop.tracing.SpanReceiverHost;%0Aimport org.apache.hadoop.util.ToolRunner;%0Aimport org.apache.htrace.Sampler;%0Aimport org.apache.htrace.Trace;%0Aimport org.apache.htrace.TraceScope;%0A%0A/**%0A * FsShell with tracing by HTrace.%0A * This class is for Hadoop 2.7, not for trunk.%0A */%0Apublic class TracingFsShell %7B%0A  public static void main(String argv%5B%5D) throws Exception %7B%0A    Configuration conf = new Configuration();%0A    conf.setQuietMode(false);%0A    FsShell shell = new FsShell();%0A    shell.setConf(conf);%0A    SpanReceiverHost.getInstance(conf);%0A    int res;%0A    try (TraceScope ts = Trace.startSpan(%22FsShell%22, Sampler.ALWAYS))%7B%0A      res = ToolRunner.run(shell, argv);%0A    %7D%0A    System.exit(res);%0A  %7D%0A%7D%0A

Add TracingFsShell class.