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

The following examples show how to use org.apache.hadoop.fs.FileSystem#getServerDefaults() . 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: TestFileCreation.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * Test that server default values can be retrieved on the client side
 */
@Test
public void testServerDefaults() throws IOException {
  Configuration conf = new HdfsConfiguration();
  conf.setLong(DFS_BLOCK_SIZE_KEY, DFS_BLOCK_SIZE_DEFAULT);
  conf.setInt(DFS_BYTES_PER_CHECKSUM_KEY, DFS_BYTES_PER_CHECKSUM_DEFAULT);
  conf.setInt(DFS_CLIENT_WRITE_PACKET_SIZE_KEY, DFS_CLIENT_WRITE_PACKET_SIZE_DEFAULT);
  conf.setInt(DFS_REPLICATION_KEY, DFS_REPLICATION_DEFAULT + 1);
  conf.setInt(IO_FILE_BUFFER_SIZE_KEY, IO_FILE_BUFFER_SIZE_DEFAULT);
  MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
                   .numDataNodes(DFSConfigKeys.DFS_REPLICATION_DEFAULT + 1)
                   .build();
  cluster.waitActive();
  FileSystem fs = cluster.getFileSystem();
  try {
    FsServerDefaults serverDefaults = fs.getServerDefaults();
    assertEquals(DFS_BLOCK_SIZE_DEFAULT, serverDefaults.getBlockSize());
    assertEquals(DFS_BYTES_PER_CHECKSUM_DEFAULT, serverDefaults.getBytesPerChecksum());
    assertEquals(DFS_CLIENT_WRITE_PACKET_SIZE_DEFAULT, serverDefaults.getWritePacketSize());
    assertEquals(DFS_REPLICATION_DEFAULT + 1, serverDefaults.getReplication());
    assertEquals(IO_FILE_BUFFER_SIZE_DEFAULT, serverDefaults.getFileBufferSize());
  } finally {
    fs.close();
    cluster.shutdown();
  }
}
 
Example 2
Source Project: big-c   File: TestFileCreation.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * Test that server default values can be retrieved on the client side
 */
@Test
public void testServerDefaults() throws IOException {
  Configuration conf = new HdfsConfiguration();
  conf.setLong(DFS_BLOCK_SIZE_KEY, DFS_BLOCK_SIZE_DEFAULT);
  conf.setInt(DFS_BYTES_PER_CHECKSUM_KEY, DFS_BYTES_PER_CHECKSUM_DEFAULT);
  conf.setInt(DFS_CLIENT_WRITE_PACKET_SIZE_KEY, DFS_CLIENT_WRITE_PACKET_SIZE_DEFAULT);
  conf.setInt(DFS_REPLICATION_KEY, DFS_REPLICATION_DEFAULT + 1);
  conf.setInt(IO_FILE_BUFFER_SIZE_KEY, IO_FILE_BUFFER_SIZE_DEFAULT);
  MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
                   .numDataNodes(DFSConfigKeys.DFS_REPLICATION_DEFAULT + 1)
                   .build();
  cluster.waitActive();
  FileSystem fs = cluster.getFileSystem();
  try {
    FsServerDefaults serverDefaults = fs.getServerDefaults();
    assertEquals(DFS_BLOCK_SIZE_DEFAULT, serverDefaults.getBlockSize());
    assertEquals(DFS_BYTES_PER_CHECKSUM_DEFAULT, serverDefaults.getBytesPerChecksum());
    assertEquals(DFS_CLIENT_WRITE_PACKET_SIZE_DEFAULT, serverDefaults.getWritePacketSize());
    assertEquals(DFS_REPLICATION_DEFAULT + 1, serverDefaults.getReplication());
    assertEquals(IO_FILE_BUFFER_SIZE_DEFAULT, serverDefaults.getFileBufferSize());
  } finally {
    fs.close();
    cluster.shutdown();
  }
}
 
Example 3
Source Project: lucene-solr   File: HdfsFileWriter.java    License: Apache License 2.0 5 votes vote down vote up
private static final OutputStream getOutputStream(FileSystem fileSystem, Path path) throws IOException {
  Configuration conf = fileSystem.getConf();
  FsServerDefaults fsDefaults = fileSystem.getServerDefaults(path);
  short replication = fileSystem.getDefaultReplication(path);
  EnumSet<CreateFlag> flags = EnumSet.of(CreateFlag.CREATE);
  if (Boolean.getBoolean(HDFS_SYNC_BLOCK)) {
    flags.add(CreateFlag.SYNC_BLOCK);
  }
  return fileSystem.create(path, FsPermission.getDefault()
      .applyUMask(FsPermission.getUMask(conf)), flags, fsDefaults
      .getFileBufferSize(), replication, fsDefaults
      .getBlockSize(), null);
}