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Java BackupNode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.hdfs.server.namenode.BackupNode的典型用法代码示例。如果您正苦于以下问题:Java BackupNode类的具体用法?Java BackupNode怎么用?Java BackupNode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。



BackupNode类属于org.apache.hadoop.hdfs.server.namenode包,在下文中一共展示了BackupNode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: startBackupNode

import org.apache.hadoop.hdfs.server.namenode.BackupNode; //导入依赖的package包/类
/**
 * Start the BackupNode
 */
public BackupNode startBackupNode(Configuration conf) throws IOException {
  // Set up testing environment directories
  hdfsDir = new File(TEST_DATA_DIR, "backupNode");
  if ( hdfsDir.exists() && !FileUtil.fullyDelete(hdfsDir) ) {
    throw new IOException("Could not delete hdfs directory '" + hdfsDir + "'");
  }
  File currDir = new File(hdfsDir, "name2");
  File currDir2 = new File(currDir, "current");
  File currDir3 = new File(currDir, "image");
  
  assertTrue(currDir.mkdirs());
  assertTrue(currDir2.mkdirs());
  assertTrue(currDir3.mkdirs());
  
  conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY,
      fileAsURI(new File(hdfsDir, "name2")).toString());
  conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY,
      "${" + DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY + "}");
  
  // Start BackupNode
  String[] args = new String [] { StartupOption.BACKUP.getName() };
  BackupNode bu = (BackupNode)NameNode.createNameNode(args, conf);

  return bu;
}
 
开发者ID:naver,项目名称:hadoop,代码行数:29,代码来源:TestHDFSServerPorts.java


示例2: canStartBackupNode

import org.apache.hadoop.hdfs.server.namenode.BackupNode; //导入依赖的package包/类
/**
 * Check whether the BackupNode can be started.
 */
private boolean canStartBackupNode(Configuration conf) throws IOException {
  BackupNode bn = null;

  try {
    bn = startBackupNode(conf);
  } catch(IOException e) {
    if (e instanceof java.net.BindException)
      return false;
    throw e;
  } finally {
    if(bn != null) bn.stop();
  }

  return true;
}
 
开发者ID:naver,项目名称:hadoop,代码行数:19,代码来源:TestHDFSServerPorts.java


示例3: startBackupNode

import org.apache.hadoop.hdfs.server.namenode.BackupNode; //导入依赖的package包/类
/**
 * Start the BackupNode
 */
public BackupNode startBackupNode(Configuration conf) throws IOException {
  String dataDir = getTestingDir();
  // Set up testing environment directories
  hdfsDir = new File(dataDir, "backupNode");
  if ( hdfsDir.exists() && !FileUtil.fullyDelete(hdfsDir) ) {
    throw new IOException("Could not delete hdfs directory '" + hdfsDir + "'");
  }
  File currDir = new File(hdfsDir, "name2");
  File currDir2 = new File(currDir, "current");
  File currDir3 = new File(currDir, "image");
  
  assertTrue(currDir.mkdirs());
  assertTrue(currDir2.mkdirs());
  assertTrue(currDir3.mkdirs());
  
  conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY,
      fileAsURI(new File(hdfsDir, "name2")).toString());
  conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY, "${dfs.name.dir}");
  
  // Start BackupNode
  String[] args = new String [] { StartupOption.BACKUP.getName() };
  BackupNode bu = (BackupNode)NameNode.createNameNode(args, conf);

  return bu;
}
 
开发者ID:cumulusyebl,项目名称:cumulus,代码行数:29,代码来源:TestHDFSServerPorts.java


示例4: startBackupNode

import org.apache.hadoop.hdfs.server.namenode.BackupNode; //导入依赖的package包/类
/**
 * Start the BackupNode
 */
public BackupNode startBackupNode(Configuration conf) throws IOException {
  String dataDir = getTestingDir();
  // Set up testing environment directories
  hdfsDir = new File(dataDir, "backupNode");
  if ( hdfsDir.exists() && !FileUtil.fullyDelete(hdfsDir) ) {
    throw new IOException("Could not delete hdfs directory '" + hdfsDir + "'");
  }
  File currDir = new File(hdfsDir, "name2");
  File currDir2 = new File(currDir, "current");
  File currDir3 = new File(currDir, "image");
  
  assertTrue(currDir.mkdirs());
  assertTrue(currDir2.mkdirs());
  assertTrue(currDir3.mkdirs());
  
  conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY,
      fileAsURI(new File(hdfsDir, "name2")).toString());
  conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY,
      "${" + DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY + "}");
  
  // Start BackupNode
  String[] args = new String [] { StartupOption.BACKUP.getName() };
  BackupNode bu = (BackupNode)NameNode.createNameNode(args, conf);

  return bu;
}
 
开发者ID:ict-carch,项目名称:hadoop-plus,代码行数:30,代码来源:TestHDFSServerPorts.java



注:本文中的org.apache.hadoop.hdfs.server.namenode.BackupNode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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