Java Code Examples for org.apache.hadoop.fs.FileSystem#setVerifyChecksum()

The following examples show how to use org.apache.hadoop.fs.FileSystem#setVerifyChecksum() . These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may want to check out the right sidebar which shows the related API usage.
Example 1
Source Project: hadoop   File: TestFSInputChecker.java    License: Apache License 2.0 6 votes vote down vote up 
/**
 * Tests read/seek/getPos/skipped opeation for input stream.
 */
private void testChecker(FileSystem fileSys, boolean readCS)
throws Exception {
  Path file = new Path("try.dat");
  writeFile(fileSys, file);

  try {
    if (!readCS) {
      fileSys.setVerifyChecksum(false);
    }

    stm = fileSys.open(file);
    checkReadAndGetPos();
    checkSeek();
    checkSkip();
    //checkMark
    assertFalse(stm.markSupported());
    stm.close();
  } finally {
    if (!readCS) {
      fileSys.setVerifyChecksum(true);
    }
    cleanupFile(fileSys, file);
  }
}
Example 2
Source Project: hadoop   File: TestPread.java    License: Apache License 2.0 6 votes vote down vote up 
private void dfsPreadTest(Configuration conf, boolean disableTransferTo, boolean verifyChecksum)
    throws IOException {
  conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, 4096);
  conf.setLong(DFSConfigKeys.DFS_CLIENT_READ_PREFETCH_SIZE_KEY, 4096);
  // Set short retry timeouts so this test runs faster
  conf.setInt(DFSConfigKeys.DFS_CLIENT_RETRY_WINDOW_BASE, 0);
  if (simulatedStorage) {
    SimulatedFSDataset.setFactory(conf);
  }
  if (disableTransferTo) {
    conf.setBoolean("dfs.datanode.transferTo.allowed", false);
  }
  MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).numDataNodes(3).build();
  FileSystem fileSys = cluster.getFileSystem();
  fileSys.setVerifyChecksum(verifyChecksum);
  try {
    Path file1 = new Path("preadtest.dat");
    writeFile(fileSys, file1);
    pReadFile(fileSys, file1);
    datanodeRestartTest(cluster, fileSys, file1);
    cleanupFile(fileSys, file1);
  } finally {
    fileSys.close();
    cluster.shutdown();
  }
}
Example 3
Source Project: hadoop   File: DumpTypedBytes.java    License: Apache License 2.0 6 votes vote down vote up 
/**
 * The main driver for <code>DumpTypedBytes</code>.
 */
public int run(String[] args) throws Exception {
  if (args.length == 0) {
    System.err.println("Too few arguments!");
    printUsage();
    return 1;
  }
  Path pattern = new Path(args[0]);
  FileSystem fs = pattern.getFileSystem(getConf());
  fs.setVerifyChecksum(true);
  for (Path p : FileUtil.stat2Paths(fs.globStatus(pattern), pattern)) {
    List<FileStatus> inputFiles = new ArrayList<FileStatus>();
    FileStatus status = fs.getFileStatus(p);
    if (status.isDirectory()) {
      FileStatus[] files = fs.listStatus(p);
      Collections.addAll(inputFiles, files);
    } else {
      inputFiles.add(status);
    }
    return dumpTypedBytes(inputFiles);
  }
  return -1;
}
Example 4
Source Project: big-c   File: TestFSInputChecker.java    License: Apache License 2.0 6 votes vote down vote up 
/**
 * Tests read/seek/getPos/skipped opeation for input stream.
 */
private void testChecker(FileSystem fileSys, boolean readCS)
throws Exception {
  Path file = new Path("try.dat");
  writeFile(fileSys, file);

  try {
    if (!readCS) {
      fileSys.setVerifyChecksum(false);
    }

    stm = fileSys.open(file);
    checkReadAndGetPos();
    checkSeek();
    checkSkip();
    //checkMark
    assertFalse(stm.markSupported());
    stm.close();
  } finally {
    if (!readCS) {
      fileSys.setVerifyChecksum(true);
    }
    cleanupFile(fileSys, file);
  }
}
Example 5
Source Project: big-c   File: TestPread.java    License: Apache License 2.0 6 votes vote down vote up 
private void dfsPreadTest(Configuration conf, boolean disableTransferTo, boolean verifyChecksum)
    throws IOException {
  conf.setLong(DFSConfigKeys.DFS_BLOCK_SIZE_KEY, 4096);
  conf.setLong(DFSConfigKeys.DFS_CLIENT_READ_PREFETCH_SIZE_KEY, 4096);
  // Set short retry timeouts so this test runs faster
  conf.setInt(DFSConfigKeys.DFS_CLIENT_RETRY_WINDOW_BASE, 0);
  if (simulatedStorage) {
    SimulatedFSDataset.setFactory(conf);
  }
  if (disableTransferTo) {
    conf.setBoolean("dfs.datanode.transferTo.allowed", false);
  }
  MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).numDataNodes(3).build();
  FileSystem fileSys = cluster.getFileSystem();
  fileSys.setVerifyChecksum(verifyChecksum);
  try {
    Path file1 = new Path("preadtest.dat");
    writeFile(fileSys, file1);
    pReadFile(fileSys, file1);
    datanodeRestartTest(cluster, fileSys, file1);
    cleanupFile(fileSys, file1);
  } finally {
    fileSys.close();
    cluster.shutdown();
  }
}
Example 6
Source Project: big-c   File: DumpTypedBytes.java    License: Apache License 2.0 6 votes vote down vote up 
/**
 * The main driver for <code>DumpTypedBytes</code>.
 */
public int run(String[] args) throws Exception {
  if (args.length == 0) {
    System.err.println("Too few arguments!");
    printUsage();
    return 1;
  }
  Path pattern = new Path(args[0]);
  FileSystem fs = pattern.getFileSystem(getConf());
  fs.setVerifyChecksum(true);
  for (Path p : FileUtil.stat2Paths(fs.globStatus(pattern), pattern)) {
    List<FileStatus> inputFiles = new ArrayList<FileStatus>();
    FileStatus status = fs.getFileStatus(p);
    if (status.isDirectory()) {
      FileStatus[] files = fs.listStatus(p);
      Collections.addAll(inputFiles, files);
    } else {
      inputFiles.add(status);
    }
    return dumpTypedBytes(inputFiles);
  }
  return -1;
}