Examples of org.apache.hadoop.fs.FileSystem$FSSelect

org.apache.hadoop.fs.FileSystem
FSSelect is an interface for figuring out which FileSystems to close in a closeAll() call. Its method needClose() returns true if this FS should be closed.

      assertTrue(cluster.waitForActiveAndReadyMaster());


      // Create a ZKW to use in the test
      ZooKeeperWatcher zkw = HBaseTestingUtility.getZooKeeperWatcher(TEST_UTIL);


      FileSystem filesystem = FileSystem.get(conf);
      Path rootdir = filesystem.makeQualified(new Path(conf
          .get(HConstants.HBASE_DIR)));


      byte[][] SPLIT_KEYS = new byte[][] { new byte[0], Bytes.toBytes("aaa"),
          Bytes.toBytes("bbb"), Bytes.toBytes("ccc"), Bytes.toBytes("ddd") };
      HTableDescriptor htdDisabled = new HTableDescriptor(Bytes.toBytes(table));

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    try {
      setupTable(table);
      assertEquals(ROWKEYS.length, countRows());
      TEST_UTIL.getHBaseAdmin().flush(table); // flush is async.


      FileSystem fs = FileSystem.get(conf);
      Path hfile = getFlushedHFile(fs, table);


      // Mess it up by leaving a hole in the assignment, meta, and hdfs data
      TEST_UTIL.getHBaseAdmin().disableTable(table);

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  @Test(timeout=120000)
  public void testQuarantineMissingHFile() throws Exception {
    String table = name.getMethodName();
    ExecutorService exec = new ScheduledThreadPoolExecutor(10);
    // inject a fault in the hfcc created.
    final FileSystem fs = FileSystem.get(conf);
    HBaseFsck hbck = new HBaseFsck(conf, exec) {
      public HFileCorruptionChecker createHFileCorruptionChecker(boolean sidelineCorruptHFiles) throws IOException {
        return new HFileCorruptionChecker(conf, executor, sidelineCorruptHFiles) {
          boolean attemptedFirstHFile = false;
          protected void checkHFile(Path p) throws IOException {
            if (!attemptedFirstHFile) {
              attemptedFirstHFile = true;
              assertTrue(fs.delete(p, true)); // make sure delete happened.
            }
            super.checkHFile(p);
          }
        };
      }

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  @Test(timeout=120000)
  public void testQuarantineMissingFamdir() throws Exception {
    String table = name.getMethodName();
    ExecutorService exec = new ScheduledThreadPoolExecutor(10);
    // inject a fault in the hfcc created.
    final FileSystem fs = FileSystem.get(conf);
    HBaseFsck hbck = new HBaseFsck(conf, exec) {
      public HFileCorruptionChecker createHFileCorruptionChecker(boolean sidelineCorruptHFiles) throws IOException {
        return new HFileCorruptionChecker(conf, executor, sidelineCorruptHFiles) {
          boolean attemptedFirstFamDir = false;
          protected void checkColFamDir(Path p) throws IOException {
            if (!attemptedFirstFamDir) {
              attemptedFirstFamDir = true;
              assertTrue(fs.delete(p, true)); // make sure delete happened.
            }
            super.checkColFamDir(p);
          }
        };
      }

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  @Test(timeout=120000)
  public void testQuarantineMissingRegionDir() throws Exception {
    String table = name.getMethodName();
    ExecutorService exec = new ScheduledThreadPoolExecutor(10);
    // inject a fault in the hfcc created.
    final FileSystem fs = FileSystem.get(conf);
    HBaseFsck hbck = new HBaseFsck(conf, exec) {
      public HFileCorruptionChecker createHFileCorruptionChecker(boolean sidelineCorruptHFiles) throws IOException {
        return new HFileCorruptionChecker(conf, executor, sidelineCorruptHFiles) {
          boolean attemptedFirstRegionDir = false;
          protected void checkRegionDir(Path p) throws IOException {
            if (!attemptedFirstRegionDir) {
              attemptedFirstRegionDir = true;
              assertTrue(fs.delete(p, true)); // make sure delete happened.
            }
            super.checkRegionDir(p);
          }
        };
      }

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    try {
      setupTable(table);
      assertEquals(ROWKEYS.length, countRows());


      // Mess it up by creating a fake reference file
      FileSystem fs = FileSystem.get(conf);
      Path tableDir= FSUtils.getTablePath(FSUtils.getRootDir(conf), table);
      Path regionDir = FSUtils.getRegionDirs(fs, tableDir).get(0);
      Path famDir = new Path(regionDir, FAM_STR);
      Path fakeReferenceFile = new Path(famDir, "fbce357483ceea.12144538");
      fs.create(fakeReferenceFile);


      HBaseFsck hbck = doFsck(conf, false);
      assertErrors(hbck, new ERROR_CODE[] { ERROR_CODE.LINGERING_REFERENCE_HFILE });
      // fix reference file
      doFsck(conf, true);

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   * @return A new instance of the filesystem
   */
  private static FileSystem newInstanceFileSystem(Configuration conf)
    throws IOException {
    URI uri = FileSystem.getDefaultUri(conf);
    FileSystem fs = null;
    Class<?> clazz = conf.getClass("fs." + uri.getScheme() + ".impl", null);
    if (clazz != null) {
      // This will be true for Hadoop 1.0, or 0.20.
      fs = (FileSystem)ReflectionUtils.newInstance(clazz, conf);
      fs.initialize(uri, conf);
    } else {
      // For Hadoop 2.0, we have to go through FileSystem for the filesystem
      // implementation to be loaded by the service loader in case it has not
      // been loaded yet.
      Configuration clone = new Configuration(conf);

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    System.err.println("         For example: HLog --split hdfs://example.com:9000/hbase/.logs/DIR");
  }


  private static void split(final Configuration conf, final Path p)
  throws IOException {
    FileSystem fs = FileSystem.get(conf);
    if (!fs.exists(p)) {
      throw new FileNotFoundException(p.toString());
    }
    final Path baseDir = new Path(conf.get(HConstants.HBASE_DIR));
    final Path oldLogDir = new Path(baseDir, HConstants.HREGION_OLDLOGDIR_NAME);
    if (!fs.getFileStatus(p).isDir()) {
      throw new IOException(p + " is not a directory");
    }


    HLogSplitter logSplitter = HLogSplitter.createLogSplitter(
        conf, baseDir, p, oldLogDir, fs);

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    String regionEncodedName) throws IOException {
    HDFSBlocksDistribution hdfsBlocksDistribution =
      new HDFSBlocksDistribution();
    Path tablePath = FSUtils.getTablePath(FSUtils.getRootDir(conf),
      tableDescriptor.getName());
    FileSystem fs = tablePath.getFileSystem(conf);


    for (HColumnDescriptor family: tableDescriptor.getFamilies()) {
      Path storeHomeDir = Store.getStoreHomedir(tablePath, regionEncodedName,
      family.getName());
      if (!fs.exists(storeHomeDir))continue;


      FileStatus[] hfilesStatus = null;
      hfilesStatus = fs.listStatus(storeHomeDir);


      for (FileStatus hfileStatus : hfilesStatus) {
        HDFSBlocksDistribution storeFileBlocksDistribution =
          FSUtils.computeHDFSBlocksDistribution(fs, hfileStatus, 0,
          hfileStatus.getLen());

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        " Table name == " + info.getTableNameAsString());


    Path tableDir =
        HTableDescriptor.getTableDir(rootDir, info.getTableName());
    Path regionDir = HRegion.getRegionDir(tableDir, info.getEncodedName());
    FileSystem fs = FileSystem.get(conf);
    fs.mkdirs(regionDir);
    HLog effectiveHLog = hlog;
    if (hlog == null) {
      effectiveHLog = new HLog(fs, new Path(regionDir, HConstants.HREGION_LOGDIR_NAME),
          new Path(regionDir, HConstants.HREGION_OLDLOGDIR_NAME), conf);
    }

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