Examples of UniqueNameAllocator

org.apache.accumulo.server.tablets.UniqueNameAllocator
Allocates unique names for an accumulo instance. The names are unique for the lifetime of the instance. This is useful for filenames because it makes caching easy.
org.apache.accumulo.server.tabletserver.UniqueNameAllocator
Allocates unique names for an accumulo instance. The names are unique for the lifetime of the instance. This is useful for filenames because it makes caching easy.

Examples of org.apache.accumulo.server.tablets.UniqueNameAllocator

    // the purpose of the lock file is to avoid a race
    // condition between the call to fs.exists() and
    // fs.mkdirs()... if only hadoop had a mkdir() function
    // that failed when the dir existed


    UniqueNameAllocator namer = UniqueNameAllocator.getInstance();


    while (true) {
      Path newBulkDir = new Path(directory, Constants.BULK_PREFIX + namer.getNextName());
      if (fs.exists(newBulkDir)) // sanity check
        throw new IllegalStateException("Dir exist when it should not " + newBulkDir);
      if (fs.mkdirs(newBulkDir))
        return newBulkDir;
      log.warn("Failed to create " + newBulkDir + " for unknown reason");

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Examples of org.apache.accumulo.server.tablets.UniqueNameAllocator

    MetadataTableUtil.addBulkLoadInProgressFlag("/" + bulkDir.getParent().getName() + "/" + bulkDir.getName());


    Path dirPath = new Path(dir);
    FileStatus[] mapFiles = fs.listStatus(dirPath);


    UniqueNameAllocator namer = UniqueNameAllocator.getInstance();


    for (FileStatus fileStatus : mapFiles) {
      String sa[] = fileStatus.getPath().getName().split("\\.");
      String extension = "";
      if (sa.length > 1) {
        extension = sa[sa.length - 1];


        if (!FileOperations.getValidExtensions().contains(extension)) {
          log.warn(fileStatus.getPath() + " does not have a valid extension, ignoring");
          continue;
        }
      } else {
        // assume it is a map file
        extension = Constants.MAPFILE_EXTENSION;
      }


      if (extension.equals(Constants.MAPFILE_EXTENSION)) {
        if (!fileStatus.isDir()) {
          log.warn(fileStatus.getPath() + " is not a map file, ignoring");
          continue;
        }


        if (fileStatus.getPath().getName().equals("_logs")) {
          log.info(fileStatus.getPath() + " is probably a log directory from a map/reduce task, skipping");
          continue;
        }
        try {
          FileStatus dataStatus = fs.getFileStatus(new Path(fileStatus.getPath(), MapFile.DATA_FILE_NAME));
          if (dataStatus.isDir()) {
            log.warn(fileStatus.getPath() + " is not a map file, ignoring");
            continue;
          }
        } catch (FileNotFoundException fnfe) {
          log.warn(fileStatus.getPath() + " is not a map file, ignoring");
          continue;
        }
      }


      String newName = "I" + namer.getNextName() + "." + extension;
      Path newPath = new Path(bulkDir, newName);
      try {
        fs.rename(fileStatus.getPath(), newPath);
        log.debug("Moved " + fileStatus.getPath() + " to " + newPath);
      } catch (IOException E1) {

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Examples of org.apache.accumulo.server.tablets.UniqueNameAllocator


      fs.mkdirs(new Path(tableInfo.importDir));


      FileStatus[] files = fs.listStatus(new Path(tableInfo.exportDir));


      UniqueNameAllocator namer = UniqueNameAllocator.getInstance();


      mappingsWriter = new BufferedWriter(new OutputStreamWriter(fs.create(path), Constants.UTF8));


      for (FileStatus fileStatus : files) {
        String fileName = fileStatus.getPath().getName();
        log.info("filename " + fileStatus.getPath().toString());
        String sa[] = fileName.split("\\.");
        String extension = "";
        if (sa.length > 1) {
          extension = sa[sa.length - 1];


          if (!FileOperations.getValidExtensions().contains(extension)) {
            continue;
          }
        } else {
          // assume it is a map file
          extension = Constants.MAPFILE_EXTENSION;
        }


        String newName = "I" + namer.getNextName() + "." + extension;


        mappingsWriter.append(fileName);
        mappingsWriter.append(':');
        mappingsWriter.append(newName);
        mappingsWriter.newLine();

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Examples of org.apache.accumulo.server.tablets.UniqueNameAllocator

  }


  @Override
  public Repo<Master> call(long tid, Master master) throws Exception {


    UniqueNameAllocator namer = UniqueNameAllocator.getInstance();


    Path base = master.getFileSystem().matchingFileSystem(new Path(tableInfo.exportDir), ServerConstants.getTablesDirs());
    Path directory = new Path(base, tableInfo.tableId);


    Path newBulkDir = new Path(directory, Constants.BULK_PREFIX + namer.getNextName());


    tableInfo.importDir = newBulkDir.toString();


    return new MapImportFileNames(tableInfo);
  }

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Examples of org.apache.accumulo.server.tablets.UniqueNameAllocator

  private static final Logger log = Logger.getLogger(TabletOperations.class);
  
  public static String createTabletDirectory(VolumeManager fs, String tableId, Text endRow) {
    String lowDirectory;
    
    UniqueNameAllocator namer = UniqueNameAllocator.getInstance();
    String volume = fs.choose(ServerConstants.getTablesDirs());
    
    while (true) {
      try {
        if (endRow == null) {
          lowDirectory = Constants.DEFAULT_TABLET_LOCATION;
          Path lowDirectoryPath = new Path(volume + "/" + tableId + "/" + lowDirectory);
          if (fs.exists(lowDirectoryPath) || fs.mkdirs(lowDirectoryPath)) {
            FileSystem pathFs = fs.getVolumeByPath(lowDirectoryPath).getFileSystem();
            return lowDirectoryPath.makeQualified(pathFs.getUri(), pathFs.getWorkingDirectory()).toString();
          }
          log.warn("Failed to create " + lowDirectoryPath + " for unknown reason");
        } else {
          lowDirectory = "/" + Constants.GENERATED_TABLET_DIRECTORY_PREFIX + namer.getNextName();
          Path lowDirectoryPath = new Path(volume + "/" + tableId + "/" +  lowDirectory);
          if (fs.exists(lowDirectoryPath))
            throw new IllegalStateException("Dir exist when it should not " + lowDirectoryPath);
          if (fs.mkdirs(lowDirectoryPath)) {
            FileSystem lowDirectoryFs = fs.getVolumeByPath(lowDirectoryPath).getFileSystem();

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Examples of org.apache.accumulo.server.tablets.UniqueNameAllocator

    // the purpose of the lock file is to avoid a race
    // condition between the call to fs.exists() and
    // fs.mkdirs()... if only hadoop had a mkdir() function
    // that failed when the dir existed
    
    UniqueNameAllocator namer = UniqueNameAllocator.getInstance();
    
    while (true) {
      Path newBulkDir = new Path(directory, Constants.BULK_PREFIX + namer.getNextName());
      if (fs.exists(newBulkDir)) // sanity check
        throw new IllegalStateException("Dir exist when it should not " + newBulkDir);
      if (fs.mkdirs(newBulkDir))
        return newBulkDir;
      log.warn("Failed to create " + newBulkDir + " for unknown reason");

View Full Code Here

Examples of org.apache.accumulo.server.tablets.UniqueNameAllocator

    MetadataTableUtil.addBulkLoadInProgressFlag("/" + bulkDir.getParent().getName() + "/" + bulkDir.getName());
    
    Path dirPath = new Path(dir);
    FileStatus[] mapFiles = fs.listStatus(dirPath);
    
    UniqueNameAllocator namer = UniqueNameAllocator.getInstance();
    
    for (FileStatus fileStatus : mapFiles) {
      String sa[] = fileStatus.getPath().getName().split("\\.");
      String extension = "";
      if (sa.length > 1) {
        extension = sa[sa.length - 1];
        
        if (!FileOperations.getValidExtensions().contains(extension)) {
          log.warn(fileStatus.getPath() + " does not have a valid extension, ignoring");
          continue;
        }
      } else {
        // assume it is a map file
        extension = Constants.MAPFILE_EXTENSION;
      }
      
      if (extension.equals(Constants.MAPFILE_EXTENSION)) {
        if (!fileStatus.isDir()) {
          log.warn(fileStatus.getPath() + " is not a map file, ignoring");
          continue;
        }
        
        if (fileStatus.getPath().getName().equals("_logs")) {
          log.info(fileStatus.getPath() + " is probably a log directory from a map/reduce task, skipping");
          continue;
        }
        try {
          FileStatus dataStatus = fs.getFileStatus(new Path(fileStatus.getPath(), MapFile.DATA_FILE_NAME));
          if (dataStatus.isDir()) {
            log.warn(fileStatus.getPath() + " is not a map file, ignoring");
            continue;
          }
        } catch (FileNotFoundException fnfe) {
          log.warn(fileStatus.getPath() + " is not a map file, ignoring");
          continue;
        }
      }
      
      String newName = "I" + namer.getNextName() + "." + extension;
      Path newPath = new Path(bulkDir, newName);
      try {
        fs.rename(fileStatus.getPath(), newPath);
        log.debug("Moved " + fileStatus.getPath() + " to " + newPath);
      } catch (IOException E1) {

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Examples of org.apache.accumulo.server.tabletserver.UniqueNameAllocator

  private static final Logger log = Logger.getLogger(TabletOperations.class);
  
  public static String createTabletDirectory(FileSystem fs, String tableDir, Text endRow) {
    String lowDirectory;
    
    UniqueNameAllocator namer = UniqueNameAllocator.getInstance();
    
    while (true) {
      try {
        if (endRow == null) {
          lowDirectory = Constants.DEFAULT_TABLET_LOCATION;
          Path lowDirectoryPath = new Path(tableDir + lowDirectory);
          if (fs.exists(lowDirectoryPath) || fs.mkdirs(lowDirectoryPath))
            return lowDirectory;
          log.warn("Failed to create " + lowDirectoryPath + " for unknown reason");
        } else {
          lowDirectory = "/" + Constants.GENERATED_TABLET_DIRECTORY_PREFIX + namer.getNextName();
          Path lowDirectoryPath = new Path(tableDir + lowDirectory);
          if (fs.exists(lowDirectoryPath))
            throw new IllegalStateException("Dir exist when it should not " + lowDirectoryPath);
          if (fs.mkdirs(lowDirectoryPath))
            return lowDirectory;

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Examples of org.apache.accumulo.server.tabletserver.UniqueNameAllocator

      
      fs.mkdirs(new Path(tableInfo.importDir));
      
      FileStatus[] files = fs.listStatus(new Path(tableInfo.exportDir));
      
      UniqueNameAllocator namer = UniqueNameAllocator.getInstance();
      
      mappingsWriter = new BufferedWriter(new OutputStreamWriter(fs.create(path), Constants.UTF8));
      
      for (FileStatus fileStatus : files) {
        String fileName = fileStatus.getPath().getName();
        
        String sa[] = fileName.split("\\.");
        String extension = "";
        if (sa.length > 1) {
          extension = sa[sa.length - 1];
          
          if (!FileOperations.getValidExtensions().contains(extension)) {
            continue;
          }
        } else {
          // assume it is a map file
          extension = Constants.MAPFILE_EXTENSION;
        }
        
        String newName = "I" + namer.getNextName() + "." + extension;
        
        mappingsWriter.append(fileName);
        mappingsWriter.append(':');
        mappingsWriter.append(newName);
        mappingsWriter.newLine();

View Full Code Here

Examples of org.apache.accumulo.server.tabletserver.UniqueNameAllocator

  }
  
  @Override
  public Repo<Master> call(long tid, Master environment) throws Exception {
    
    UniqueNameAllocator namer = UniqueNameAllocator.getInstance();
    
    Path directory = new Path(ServerConstants.getTablesDir() + "/" + tableInfo.tableId);
    
    Path newBulkDir = new Path(directory, Constants.BULK_PREFIX + namer.getNextName());
    
    tableInfo.importDir = newBulkDir.toString();
    
    return new MapImportFileNames(tableInfo);
  }

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