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Java CopyOutputFormat类代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了Java中org.apache.hadoop.tools.mapred.CopyOutputFormat的典型用法代码示例。如果您正苦于以下问题:Java CopyOutputFormat类的具体用法?Java CopyOutputFormat怎么用?Java CopyOutputFormat使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。



CopyOutputFormat类属于org.apache.hadoop.tools.mapred包,在下文中一共展示了CopyOutputFormat类的4个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Java代码示例。

示例1: createJob

import org.apache.hadoop.tools.mapred.CopyOutputFormat; //导入依赖的package包/类
/**
 * Create Job object for submitting it, with all the configuration
 *
 * @return Reference to job object.
 * @throws IOException - Exception if any
 */
private Job createJob() throws IOException {
  String jobName = "distcp";
  String userChosenName = getConf().get(JobContext.JOB_NAME);
  if (userChosenName != null)
    jobName += ": " + userChosenName;
  Job job = Job.getInstance(getConf());
  job.setJobName(jobName);
  job.setInputFormatClass(DistCpUtils.getStrategy(getConf(), inputOptions));
  job.setJarByClass(CopyMapper.class);
  configureOutputFormat(job);

  job.setMapperClass(CopyMapper.class);
  job.setNumReduceTasks(0);
  job.setMapOutputKeyClass(Text.class);
  job.setMapOutputValueClass(Text.class);
  job.setOutputFormatClass(CopyOutputFormat.class);
  job.getConfiguration().set(JobContext.MAP_SPECULATIVE, "false");
  job.getConfiguration().set(JobContext.NUM_MAPS,
                String.valueOf(inputOptions.getMaxMaps()));

  if (inputOptions.getSslConfigurationFile() != null) {
    setupSSLConfig(job);
  }

  inputOptions.appendToConf(job.getConfiguration());
  return job;
}
 
开发者ID:naver,项目名称:hadoop,代码行数:34,代码来源:DistCp.java


示例2: configureOutputFormat

import org.apache.hadoop.tools.mapred.CopyOutputFormat; //导入依赖的package包/类
/**
 * Setup output format appropriately
 *
 * @param job - Job handle
 * @throws IOException - Exception if any
 */
private void configureOutputFormat(Job job) throws IOException {
  final Configuration configuration = job.getConfiguration();
  Path targetPath = inputOptions.getTargetPath();
  FileSystem targetFS = targetPath.getFileSystem(configuration);
  targetPath = targetPath.makeQualified(targetFS.getUri(),
                                        targetFS.getWorkingDirectory());
  if (inputOptions.shouldPreserve(DistCpOptions.FileAttribute.ACL)) {
    DistCpUtils.checkFileSystemAclSupport(targetFS);
  }
  if (inputOptions.shouldPreserve(DistCpOptions.FileAttribute.XATTR)) {
    DistCpUtils.checkFileSystemXAttrSupport(targetFS);
  }
  if (inputOptions.shouldAtomicCommit()) {
    Path workDir = inputOptions.getAtomicWorkPath();
    if (workDir == null) {
      workDir = targetPath.getParent();
    }
    workDir = new Path(workDir, WIP_PREFIX + targetPath.getName()
                              + rand.nextInt());
    FileSystem workFS = workDir.getFileSystem(configuration);
    if (!FileUtil.compareFs(targetFS, workFS)) {
      throw new IllegalArgumentException("Work path " + workDir +
          " and target path " + targetPath + " are in different file system");
    }
    CopyOutputFormat.setWorkingDirectory(job, workDir);
  } else {
    CopyOutputFormat.setWorkingDirectory(job, targetPath);
  }
  CopyOutputFormat.setCommitDirectory(job, targetPath);

  Path logPath = inputOptions.getLogPath();
  if (logPath == null) {
    logPath = new Path(metaFolder, "_logs");
  } else {
    LOG.info("DistCp job log path: " + logPath);
  }
  CopyOutputFormat.setOutputPath(job, logPath);
}
 
开发者ID:aliyun-beta,项目名称:aliyun-oss-hadoop-fs,代码行数:45,代码来源:DistCp.java


示例3: configureOutputFormat

import org.apache.hadoop.tools.mapred.CopyOutputFormat; //导入依赖的package包/类
/**
 * Setup output format appropriately
 *
 * @param job - Job handle
 * @throws IOException - Exception if any
 */
private void configureOutputFormat(Job job) throws IOException {
  final Configuration configuration = job.getConfiguration();
  Path targetPath = inputOptions.getTargetPath();
  FileSystem targetFS = targetPath.getFileSystem(configuration);
  targetPath = targetPath.makeQualified(targetFS.getUri(),
                                        targetFS.getWorkingDirectory());
  if (inputOptions.shouldPreserve(DistCpOptions.FileAttribute.ACL)) {
    DistCpUtils.checkFileSystemAclSupport(targetFS);
  }
  if (inputOptions.shouldPreserve(DistCpOptions.FileAttribute.XATTR)) {
    DistCpUtils.checkFileSystemXAttrSupport(targetFS);
  }
  if (inputOptions.shouldAtomicCommit()) {
    Path workDir = inputOptions.getAtomicWorkPath();
    if (workDir == null) {
      workDir = targetPath.getParent();
    }
    workDir = new Path(workDir, WIP_PREFIX + targetPath.getName()
                              + rand.nextInt());
    FileSystem workFS = workDir.getFileSystem(configuration);
    if (!DistCpUtils.compareFs(targetFS, workFS)) {
      throw new IllegalArgumentException("Work path " + workDir +
          " and target path " + targetPath + " are in different file system");
    }
    CopyOutputFormat.setWorkingDirectory(job, workDir);
  } else {
    CopyOutputFormat.setWorkingDirectory(job, targetPath);
  }
  CopyOutputFormat.setCommitDirectory(job, targetPath);

  Path logPath = inputOptions.getLogPath();
  if (logPath == null) {
    logPath = new Path(metaFolder, "_logs");
  } else {
    LOG.info("DistCp job log path: " + logPath);
  }
  CopyOutputFormat.setOutputPath(job, logPath);
}
 
开发者ID:yncxcw,项目名称:big-c,代码行数:45,代码来源:DistCp.java


示例4: configureOutputFormat

import org.apache.hadoop.tools.mapred.CopyOutputFormat; //导入依赖的package包/类
/**
 * Setup output format appropriately
 *
 * @param job - Job handle
 * @throws IOException - Exception if any
 */
private void configureOutputFormat(Job job) throws IOException {
  final Configuration configuration = job.getConfiguration();
  Path targetPath = inputOptions.getTargetPath();
  FileSystem targetFS = targetPath.getFileSystem(configuration);
  targetPath = targetPath.makeQualified(targetFS.getUri(),
                                        targetFS.getWorkingDirectory());

  if (inputOptions.shouldAtomicCommit()) {
    Path workDir = inputOptions.getAtomicWorkPath();
    if (workDir == null) {
      workDir = targetPath.getParent();
    }
    workDir = new Path(workDir, WIP_PREFIX + targetPath.getName()
                              + rand.nextInt());
    FileSystem workFS = workDir.getFileSystem(configuration);
    if (!DistCpUtils.compareFs(targetFS, workFS)) {
      throw new IllegalArgumentException("Work path " + workDir +
          " and target path " + targetPath + " are in different file system");
    }
    CopyOutputFormat.setWorkingDirectory(job, workDir);
  } else {
    CopyOutputFormat.setWorkingDirectory(job, targetPath);
  }
  CopyOutputFormat.setCommitDirectory(job, targetPath);

  Path logPath = inputOptions.getLogPath();
  if (logPath == null) {
    logPath = new Path(metaFolder, "_logs");
  } else {
    LOG.info("DistCp job log path: " + logPath);
  }
  CopyOutputFormat.setOutputPath(job, logPath);
}
 
开发者ID:ict-carch,项目名称:hadoop-plus,代码行数:40,代码来源:DistCp.java



注:本文中的org.apache.hadoop.tools.mapred.CopyOutputFormat类示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。


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