Package org.apache.hadoop.hdfs

Examples of org.apache.hadoop.hdfs.DistributedFileSystem.create()

589
590
591
592
593
594
595
596
597
598
599
        .numDataNodes(1).build();
    try {
      cluster.waitClusterUp();
      DistributedFileSystem fs = cluster.getFileSystem();
      Path path = new Path("/test");
      FSDataOutputStream out = fs.create(path);
      out.writeBytes("data");
      out.hsync();
     
      List<LocatedBlock> blocks = DFSTestUtil.getAllBlocks(fs.open(path));
      final LocatedBlock block = blocks.get(0);
View Full Code Here
59
60
61
62
63
64
65
66
67
68
69
  }

  private void testAcl(boolean persistNamespace) throws IOException {
    Path p = new Path("/p");
    DistributedFileSystem fs = cluster.getFileSystem();
    fs.create(p).close();
    fs.mkdirs(new Path("/23"));

    AclEntry e = new AclEntry.Builder().setName("foo")
        .setPermission(READ_EXECUTE).setScope(ACCESS).setType(USER).build();
    fs.modifyAclEntries(p, Lists.newArrayList(e));
View Full Code Here
119
120
121
122
123
124
125
126
127
128
129
    fs.mkdirs(dirPath);
    List<AclEntry> aclSpec = Lists.newArrayList(
      aclEntry(DEFAULT, USER, "foo", ALL));
    fs.setAcl(dirPath, aclSpec);

    fs.create(filePath).close();
    fs.mkdirs(subdirPath);

    AclEntry[] fileExpected = new AclEntry[] {
      aclEntry(ACCESS, USER, "foo", ALL),
      aclEntry(ACCESS, GROUP, READ_EXECUTE) };
View Full Code Here
70
71
72
73
74
75
76
77
78
79
80
      final Path dir = new Path("/abc/def");
      final Path file1 = new Path(dir, "f1");
      final Path file2 = new Path(dir, "f2");

      // create an empty file f1
      fs.create(file1).close();

      // create an under-construction file f2
      FSDataOutputStream out = fs.create(file2);
      out.writeBytes("hello");
      ((DFSOutputStream) out.getWrappedStream()).hsync(EnumSet
View Full Code Here
73
74
75
76
77
78
79
80
81
82
83
      // create an empty file f1
      fs.create(file1).close();

      // create an under-construction file f2
      FSDataOutputStream out = fs.create(file2);
      out.writeBytes("hello");
      ((DFSOutputStream) out.getWrappedStream()).hsync(EnumSet
          .of(SyncFlag.UPDATE_LENGTH));

      // checkpoint
View Full Code Here
142
143
144
145
146
147
148
149
150
151
152
    DistributedFileSystem dfs =
      (DistributedFileSystem)cluster.getFileSystem();
    FileContext fc = FileContext.getFileContext(cluster.getURI(0), config);
    // OP_ADD 0, OP_SET_GENSTAMP 10
    Path pathFileCreate = new Path("/file_create_u\1F431");
    FSDataOutputStream s = dfs.create(pathFileCreate);
    // OP_CLOSE 9
    s.close();
    // OP_RENAME_OLD 1
    Path pathFileMoved = new Path("/file_moved");
    dfs.rename(pathFileCreate, pathFileMoved);
View Full Code Here
154
155
156
157
158
159
160
161
162
163
164
    dfs.delete(pathFileMoved, false);
    // OP_MKDIR 3
    Path pathDirectoryMkdir = new Path("/directory_mkdir");
    dfs.mkdirs(pathDirectoryMkdir);
    // OP_SET_REPLICATION 4
    s = dfs.create(pathFileCreate);
    s.close();
    dfs.setReplication(pathFileCreate, (short)1);
    // OP_SET_PERMISSIONS 7
    Short permission = 0777;
    dfs.setPermission(pathFileCreate, new FsPermission(permission));
View Full Code Here
224
225
226
227
228
229
230
231
232
233
234
   
    // OP_REASSIGN_LEASE 22
    String filePath = "/hard-lease-recovery-test";
    byte[] bytes = "foo-bar-baz".getBytes();
    DFSClientAdapter.stopLeaseRenewer(dfs);
    FSDataOutputStream leaseRecoveryPath = dfs.create(new Path(filePath));
    leaseRecoveryPath.write(bytes);
    leaseRecoveryPath.hflush();
    // Set the hard lease timeout to 1 second.
    cluster.setLeasePeriod(60 * 1000, 1000);
    // wait for lease recovery to complete
View Full Code Here
507
508
509
510
511
512
513
514
515
516
517
    cluster.waitActive();
    DistributedFileSystem fs = (DistributedFileSystem) cluster.getFileSystem();
    OutputStream out = null;
    try {
      fs.mkdirs(new Path("/test-target"));
      out = fs.create(new Path("/test-source/foo")); // don't close
      fs.rename(new Path("/test-source/"), new Path("/test-target/"));

      fs.setSafeMode(SafeModeAction.SAFEMODE_ENTER);
      cluster.getNameNodeRpc().saveNamespace();
      fs.setSafeMode(SafeModeAction.SAFEMODE_LEAVE);
View Full Code Here
149
150
151
152
153
154
155
156
157
158
159
     
      // 7: create a file /test/datafile1
      final Path childFile1 = new Path(parent, "datafile1");
      hasException = false;
      try {
        fout = dfs.create(childFile1);
      } catch (QuotaExceededException e) {
        hasException = true;
      }
      assertTrue(hasException);
     
View Full Code Here
TOP
Copyright © 2018 www.massapi.com. All rights reserved.
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.