Package org.apache.accumulo.server.fs

Interface VolumeManager

  • All Known Implementing Classes:
    VolumeManagerImpl
    public interface VolumeManager
    A wrapper around multiple hadoop FileSystem objects, which are assumed to be different volumes. This also concentrates a bunch of meta-operations like waiting for SAFE_MODE, and closing WALs. N.B. implementations must be thread safe.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Interface Description
      static class  VolumeManager.FileType  

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      String choose​(VolumeChooserEnvironment env, String[] options)  
      void close()  
      org.apache.hadoop.fs.FSDataOutputStream create​(org.apache.hadoop.fs.Path dest)  
      org.apache.hadoop.fs.FSDataOutputStream create​(org.apache.hadoop.fs.Path path, boolean b)  
      org.apache.hadoop.fs.FSDataOutputStream create​(org.apache.hadoop.fs.Path path, boolean b, int int1, short int2, long long1)  
      boolean createNewFile​(org.apache.hadoop.fs.Path writable)  
      org.apache.hadoop.fs.FSDataOutputStream createSyncable​(org.apache.hadoop.fs.Path logPath, int buffersize, short replication, long blockSize)  
      boolean delete​(org.apache.hadoop.fs.Path path)  
      boolean deleteRecursively​(org.apache.hadoop.fs.Path path)  
      boolean exists​(org.apache.hadoop.fs.Path path)  
      org.apache.hadoop.fs.ContentSummary getContentSummary​(org.apache.hadoop.fs.Path dir)  
      short getDefaultReplication​(org.apache.hadoop.fs.Path logPath)  
      Volume getDefaultVolume()
      Fetch the default Volume
      org.apache.hadoop.fs.FileStatus getFileStatus​(org.apache.hadoop.fs.Path path)  
      org.apache.hadoop.fs.Path getFullPath​(Key key)  
      org.apache.hadoop.fs.Path getFullPath​(TableId tableId, String path)  
      org.apache.hadoop.fs.Path getFullPath​(VolumeManager.FileType fileType, String fileName)  
      Volume getVolumeByPath​(org.apache.hadoop.fs.Path path)  
      Collection<Volume> getVolumes()
      Fetch the configured Volumes, excluding the default Volume
      org.apache.hadoop.fs.FileStatus[] globStatus​(org.apache.hadoop.fs.Path path)  
      boolean isReady()  
      org.apache.hadoop.fs.FileStatus[] listStatus​(org.apache.hadoop.fs.Path path)  
      org.apache.hadoop.fs.Path matchingFileSystem​(org.apache.hadoop.fs.Path source, String[] options)  
      boolean mkdirs​(org.apache.hadoop.fs.Path directory)  
      boolean mkdirs​(org.apache.hadoop.fs.Path path, org.apache.hadoop.fs.permission.FsPermission permission)  
      boolean moveToTrash​(org.apache.hadoop.fs.Path sourcePath)  
      org.apache.hadoop.fs.FSDataInputStream open​(org.apache.hadoop.fs.Path path)  
      boolean rename​(org.apache.hadoop.fs.Path path, org.apache.hadoop.fs.Path newPath)  

    • Method Detail

      • create

        org.apache.hadoop.fs.FSDataOutputStream create​(org.apache.hadoop.fs.Path dest)
                                        throws IOException
        Throws:
        IOException

      • create

        org.apache.hadoop.fs.FSDataOutputStream create​(org.apache.hadoop.fs.Path path,
                                               boolean b)
                                        throws IOException
        Throws:
        IOException

      • create

        org.apache.hadoop.fs.FSDataOutputStream create​(org.apache.hadoop.fs.Path path,
                                               boolean b,
                                               int int1,
                                               short int2,
                                               long long1)
                                        throws IOException
        Throws:
        IOException

      • createNewFile

        boolean createNewFile​(org.apache.hadoop.fs.Path writable)
               throws IOException
        Throws:
        IOException

      • createSyncable

        org.apache.hadoop.fs.FSDataOutputStream createSyncable​(org.apache.hadoop.fs.Path logPath,
                                                       int buffersize,
                                                       short replication,
                                                       long blockSize)
                                                throws IOException
        Throws:
        IOException

      • deleteRecursively

        boolean deleteRecursively​(org.apache.hadoop.fs.Path path)
                   throws IOException
        Throws:
        IOException

      • getFileStatus

        org.apache.hadoop.fs.FileStatus getFileStatus​(org.apache.hadoop.fs.Path path)
                                       throws IOException
        Throws:
        IOException

      • getVolumeByPath

        Volume getVolumeByPath​(org.apache.hadoop.fs.Path path)

      • matchingFileSystem

        org.apache.hadoop.fs.Path matchingFileSystem​(org.apache.hadoop.fs.Path source,
                                             String[] options)

      • listStatus

        org.apache.hadoop.fs.FileStatus[] listStatus​(org.apache.hadoop.fs.Path path)
                                      throws IOException
        Throws:
        IOException

      • mkdirs

        boolean mkdirs​(org.apache.hadoop.fs.Path path,
               org.apache.hadoop.fs.permission.FsPermission permission)
        throws IOException
        Throws:
        IOException

      • open

        org.apache.hadoop.fs.FSDataInputStream open​(org.apache.hadoop.fs.Path path)
                                     throws IOException
        Throws:
        IOException

      • rename

        boolean rename​(org.apache.hadoop.fs.Path path,
               org.apache.hadoop.fs.Path newPath)
        throws IOException
        Throws:
        IOException

      • moveToTrash

        boolean moveToTrash​(org.apache.hadoop.fs.Path sourcePath)
             throws IOException
        Throws:
        IOException

      • getDefaultReplication

        short getDefaultReplication​(org.apache.hadoop.fs.Path logPath)

      • globStatus

        org.apache.hadoop.fs.FileStatus[] globStatus​(org.apache.hadoop.fs.Path path)
                                      throws IOException
        Throws:
        IOException

      • getFullPath

        org.apache.hadoop.fs.Path getFullPath​(Key key)

      • getFullPath

        org.apache.hadoop.fs.Path getFullPath​(TableId tableId,
                                      String path)

      • getContentSummary

        org.apache.hadoop.fs.ContentSummary getContentSummary​(org.apache.hadoop.fs.Path dir)
                                               throws IOException
        Throws:
        IOException

      • getDefaultVolume

        Volume getDefaultVolume()
        Fetch the default Volume

      • getVolumes

        Collection<Volume> getVolumes()
        Fetch the configured Volumes, excluding the default Volume