Package org.apache.hadoop.hbase.master

Examples of org.apache.hadoop.hbase.master.MasterFileSystem

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    // 2. Remove regions from META
    LOG.debug("Deleting regions from META");
    MetaEditor.deleteRegions(this.server.getCatalogTracker(), regions);

    // 3. Move the table in /hbase/.tmp
    MasterFileSystem mfs = this.masterServices.getMasterFileSystem();
    Path tempTableDir = mfs.moveTableToTemp(tableName);

    try {
      // 4. Delete regions from FS (temp directory)
      FileSystem fs = mfs.getFileSystem();
      for (HRegionInfo hri: regions) {
        LOG.debug("Archiving region " + hri.getRegionNameAsString() + " from FS");
        HFileArchiver.archiveRegion(fs, mfs.getRootDir(),
            tempTableDir, new Path(tempTableDir, hri.getEncodedName()));
      }

      // 5. Delete table from FS (temp directory)
      if (!fs.delete(tempTableDir, true)) {
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  private void waitCleanerRun() throws InterruptedException {
    TEST_UTIL.getMiniHBaseCluster().getMaster().getHFileCleaner().choreForTesting();
  }

  private Set<String> getFamiliesFromFS(final TableName tableName) throws IOException {
    MasterFileSystem mfs = TEST_UTIL.getMiniHBaseCluster().getMaster().getMasterFileSystem();
    Set<String> families = new HashSet<String>();
    Path tableDir = FSUtils.getTableDir(mfs.getRootDir(), tableName);
    for (Path regionDir: FSUtils.getRegionDirs(mfs.getFileSystem(), tableDir)) {
      for (Path familyDir: FSUtils.getFamilyDirs(mfs.getFileSystem(), regionDir)) {
        families.add(familyDir.getName());
      }
    }
    return families;
  }
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   * Removes from hdfs the families that are not longer present in the new table descriptor.
   */
  private void deleteFamilyFromFS(final List<HRegionInfo> hris, final Set<byte[]> oldFamilies) {
    try {
      Set<byte[]> newFamilies = this.htd.getFamiliesKeys();
      MasterFileSystem mfs = this.masterServices.getMasterFileSystem();
      for (byte[] familyName: oldFamilies) {
        if (!newFamilies.contains(familyName)) {
          LOG.debug("Removing family=" + Bytes.toString(familyName) +
                     " from table=" + this.tableName);
          for (HRegionInfo hri: hris) {
            // Delete the family directory in FS for all the regions one by one
            mfs.deleteFamilyFromFS(hri, familyName);
          }
        }
      }
    } catch (IOException e) {
      LOG.warn("Unable to remove on-disk directories for the removed families", e);
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    }

    String snapshotName = snapshot.getName();
    LOG.debug("Deleting snapshot: " + snapshotName);
    // first create the snapshot description and check to see if it exists
    MasterFileSystem fs = master.getMasterFileSystem();
    Path snapshotDir = SnapshotDescriptionUtils.getCompletedSnapshotDir(snapshotName, rootDir);

    // delete the existing snapshot
    if (!fs.getFileSystem().delete(snapshotDir, true)) {
      throw new HBaseSnapshotException("Failed to delete snapshot directory: " + snapshotDir);
    }

    // call coproc post hook
    if (cpHost != null) {
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   *  -  [if something fail here: you need to run hbck to fix META entries]
   * The passed in list gets changed in this method
   */
  @Override
  protected void handleTableOperation(List<HRegionInfo> hris) throws IOException {
    MasterFileSystem fileSystemManager = masterServices.getMasterFileSystem();
    CatalogTracker catalogTracker = masterServices.getCatalogTracker();
    FileSystem fs = fileSystemManager.getFileSystem();
    Path rootDir = fileSystemManager.getRootDir();
    TableName tableName = hTableDescriptor.getTableName();

    try {
      // 1. Update descriptor
      this.masterServices.getTableDescriptors().add(hTableDescriptor);
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    // Verify descriptor from master
    HTableDescriptor htd = admin.getTableDescriptor(tableName);
    verifyTableDescriptor(htd, tableName, families);

    // Verify descriptor from HDFS
    MasterFileSystem mfs = TEST_UTIL.getMiniHBaseCluster().getMaster().getMasterFileSystem();
    Path tableDir = FSUtils.getTableDir(mfs.getRootDir(), tableName);
    htd = FSTableDescriptors.getTableDescriptorFromFs(mfs.getFileSystem(), tableDir);
    verifyTableDescriptor(htd, tableName, families);
  }
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  }

  public static void deleteArchiveDirectory(final HBaseTestingUtility util)
      throws IOException {
    // Ensure the archiver to be empty
    MasterFileSystem mfs = util.getMiniHBaseCluster().getMaster().getMasterFileSystem();
    Path archiveDir = new Path(mfs.getRootDir(), HConstants.HFILE_ARCHIVE_DIRECTORY);
    mfs.getFileSystem().delete(archiveDir, true);
  }
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  // ==========================================================================
  //  Helpers
  // ==========================================================================
  private void logFSTree() throws IOException {
    MasterFileSystem mfs = UTIL.getMiniHBaseCluster().getMaster().getMasterFileSystem();
    FSUtils.logFileSystemState(mfs.getFileSystem(), mfs.getRootDir(), LOG);
  }
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    }

    String snapshotName = snapshot.getName();
    LOG.debug("Deleting snapshot: " + snapshotName);
    // first create the snapshot description and check to see if it exists
    MasterFileSystem fs = master.getMasterFileSystem();
    Path snapshotDir = SnapshotDescriptionUtils.getCompletedSnapshotDir(snapshotName, rootDir);

    // delete the existing snapshot
    if (!fs.getFileSystem().delete(snapshotDir, true)) {
      throw new HBaseSnapshotException("Failed to delete snapshot directory: " + snapshotDir);
    }

    // call coproc post hook
    if (cpHost != null) {
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   *  -  [if something fail here: you need to run hbck to fix META entries]
   * The passed in list gets changed in this method
   */
  @Override
  protected void handleTableOperation(List<HRegionInfo> hris) throws IOException {
    MasterFileSystem fileSystemManager = masterServices.getMasterFileSystem();
    CatalogTracker catalogTracker = masterServices.getCatalogTracker();
    FileSystem fs = fileSystemManager.getFileSystem();
    Path rootDir = fileSystemManager.getRootDir();
    byte[] tableName = hTableDescriptor.getName();
    Path tableDir = HTableDescriptor.getTableDir(rootDir, tableName);

    try {
      // 1. Update descriptor
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Related Classes of org.apache.hadoop.hbase.master.MasterFileSystem

  • coprocessor.MasterObserverExample
  • org.apache.hadoop.fs.Path
  • org.apache.hadoop.hbase.client.TestCloneSnapshotFromClient
  • org.apache.hadoop.hbase.client.TestRestoreSnapshotFromClient
  • org.apache.hadoop.hbase.ClusterId
  • org.apache.hadoop.hbase.HRegionInfo
  • org.apache.hadoop.hbase.HTableDescriptor
  • org.apache.hadoop.hbase.index.coprocessor.master.TestIndexMasterObserver
  • org.apache.hadoop.hbase.master.handler.DeleteTableHandler
  • org.apache.hadoop.hbase.master.handler.ModifyTableHandler
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