Examples of org.apache.hadoop.hdfs.protocol.ClientProtocol.create()

Class org.apache.hadoop.hdfs.protocol.ClientProtocol

Examples of org.apache.hadoop.hdfs.protocol.ClientProtocol.create()

org.apache.hadoop.hdfs.protocol.ClientProtocol.create()
Create a new file entry in the namespace.
This will create an empty file specified by the source path. The path should reflect a full path originated at the root. The name-node does not have a notion of "current" directory for a client.
Once created, the file is visible and available for read to other clients. Although, other clients cannot {@link #delete(String)}, re-create or {@link #rename(String,String)} it until the file is completedor explicitly as a result of lease expiration.
Blocks have a maximum size. Clients that intend to create multi-block files must also use {@link #addBlock(String,String)}. @param src path of the file being created. @param masked masked permission. @param clientName name of the current client. @param overwrite indicates whether the file should be overwritten if it already exists. @param replication block replication factor. @param blockSize maximum block size. @throws AccessControlException if permission to create file is denied by the system. As usually on the client side the exception will be wrapped into {@link org.apache.hadoop.ipc.RemoteException}. @throws QuotaExceededException if the file creation violates any quota restriction @throws IOException if other errors occur.

    cluster.clearZooKeeperNode(0);
    ClientProtocol namenode = ((DistributedAvatarFileSystem) fs).getClient()
        .getNameNodeRPC();
    new FailoverThread().start();
    FsPermission perm = new FsPermission((short) 0264);
    namenode.create("/test", perm, ((DistributedAvatarFileSystem) fs)
        .getClient().getClientName(), true, true, (short) 3, (long) 1024);
    LOG.info("Done with create");
    assertTrue(fs.exists(new Path("/test")));
    assertTrue(pass);
  }

View Full Code Here

    cluster.clearZooKeeperNode(0);
    ClientProtocol namenode = ((DistributedAvatarFileSystem) fs).getClient()
        .getNameNodeRPC();
    new FailoverThread().start();
    FsPermission perm = new FsPermission((short) 0264);
    namenode.create("/test1", perm, ((DistributedAvatarFileSystem) fs)
        .getClient().getClientName(), false, true, (short) 3, (long) 1024);
    LOG.info("Done with create");
    assertTrue(fs.exists(new Path("/test1")));
    assertTrue(pass);
  }

View Full Code Here

    // Create destination file.
    String dstFile = "/dst" + fileName;
    FileStatus srcStat = cluster.getFileSystem().getFileStatus(
        new Path(fileName));
    String clientName = "testClient";
    srcNamenode.create(dstFile, srcStat.getPermission(), clientName, true,
        true, srcStat.getReplication(), srcStat.getBlockSize());
    FSNamesystem dstNamesystem = cluster.getNameNode().getNamesystem();


    LocatedBlocks lbks = srcNamenode.getBlockLocations(fileName, 0,
        Long.MAX_VALUE);

View Full Code Here

    ClientProtocol namenode = ((DistributedAvatarFileSystem) fs).getClient()
        .getNameNodeRPC();
    Thread t = new FailoverThread();
    t.start();
    FsPermission perm = new FsPermission((short) 0264);
    namenode.create("/test", perm, ((DistributedAvatarFileSystem) fs)
        .getClient().getClientName(), true, true, (short) 3, (long) 1024);
    LOG.info("Done with create");
    t.join();
    assertTrue(fs.exists(new Path("/test")));
    assertTrue(pass);

View Full Code Here

    ClientProtocol namenode = ((DistributedAvatarFileSystem) fs).getClient()
        .getNameNodeRPC();
    Thread t = new FailoverThread();
    t.start();
    FsPermission perm = new FsPermission((short) 0264);
    namenode.create("/test1", perm, ((DistributedAvatarFileSystem) fs)
        .getClient().getClientName(), false, true, (short) 3, (long) 1024);
    LOG.info("Done with create");
    t.join();
    assertTrue(fs.exists(new Path("/test1")));
    assertTrue(pass);

View Full Code Here

    // Create destination file.
    String dstFile = "/dst" + fileName;
    FileStatus srcStat = cluster.getFileSystem().getFileStatus(
        new Path(fileName));
    String clientName = "testClient";
    srcNamenode.create(dstFile, srcStat.getPermission(), clientName, true,
        true, srcStat.getReplication(), srcStat.getBlockSize());
    FSNamesystem dstNamesystem = cluster.getNameNode().getNamesystem();


    LocatedBlocks lbks = srcNamenode.getBlockLocations(fileName, 0,
        Long.MAX_VALUE);

View Full Code Here

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.