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

The following examples show how to use org.apache.hadoop.fs.FileSystem#setVerifyChecksum() . 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 check out the related API usage on the sidebar.
Example 1
Source File: TestFSInputChecker.java    From hadoop with 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 File: TestPread.java    From hadoop with 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 File: DumpTypedBytes.java    From hadoop with 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 File: TestFSInputChecker.java    From big-c with 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 File: TestPread.java    From big-c with 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 File: DumpTypedBytes.java    From big-c with 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;
}