Package org.apache.accumulo.core.file

Examples of org.apache.accumulo.core.file.FileSKVWriter

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  }
 
  @Override
  public CompactionStats call() throws IOException, CompactionCanceledException {
   
    FileSKVWriter mfw = null;
   
    CompactionStats majCStats = new CompactionStats();

    boolean remove = runningCompactions.add(this);
   
    clearStats();

    try {
      FileOperations fileFactory = FileOperations.getInstance();
      mfw = fileFactory.openWriter(outputFile, fs, conf, acuTableConf);
     
      Map<String,Set<ByteSequence>> lGroups;
      try {
        lGroups = LocalityGroupUtil.getLocalityGroups(acuTableConf);
      } catch (LocalityGroupConfigurationError e) {
        throw new IOException(e);
      }
     
      long t1 = System.currentTimeMillis();
     
      HashSet<ByteSequence> allColumnFamilies = new HashSet<ByteSequence>();
     
      if (mfw.supportsLocalityGroups()) {
        for (Entry<String,Set<ByteSequence>> entry : lGroups.entrySet()) {
          setLocalityGroup(entry.getKey());
          compactLocalityGroup(entry.getKey(), entry.getValue(), true, mfw, majCStats);
          allColumnFamilies.addAll(entry.getValue());
        }
      }
     
      setLocalityGroup("");
      compactLocalityGroup(null, allColumnFamilies, false, mfw, majCStats);
     
      long t2 = System.currentTimeMillis();
     
      FileSKVWriter mfwTmp = mfw;
      mfw = null; // set this to null so we do not try to close it again in finally if the close fails
      mfwTmp.close(); // if the close fails it will cause the compaction to fail
     
      // Verify the file, since hadoop 0.20.2 sometimes lies about the success of close()
      try {
        FileSKVIterator openReader = fileFactory.openReader(outputFile, false, fs, conf, acuTableConf);
        openReader.close();
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        String tmpFile = memDumpDir + "/memDump" + UUID.randomUUID() + "." + RFile.EXTENSION;
       
        Configuration newConf = new Configuration(conf);
        newConf.setInt("io.seqfile.compress.blocksize", 100000);
       
        FileSKVWriter out = new RFileOperations().openWriter(tmpFile, fs, newConf, ServerConfiguration.getSiteConfiguration());
        out.startDefaultLocalityGroup();
        InterruptibleIterator iter = map.skvIterator();
        iter.seek(new Range(), LocalityGroupUtil.EMPTY_CF_SET, false);
       
        while (iter.hasTop() && activeIters.size() > 0) {
          // RFile does not support MemKey, so we move the kv count into the value only for the RFile.
          // There is no need to change the MemKey to a normal key because the kvCount info gets lost when it is written
          Value newValue = new MemValue(iter.getTopValue(), ((MemKey) iter.getTopKey()).kvCount);
          out.append(iter.getTopKey(), newValue);
          iter.next();
        }
       
        out.close();
       
        log.debug("Created mem dump file " + tmpFile);
       
        memDumpFile = tmpFile;
       
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    }
   
    Arrays.sort(rands);
   
    Configuration conf = CachedConfiguration.getInstance();
    FileSKVWriter mfw;
    try {
      FileSystem fs = FileSystem.get(conf);
      mfw = new RFileOperations().openWriter(file, fs, conf, AccumuloConfiguration.getDefaultConfiguration());
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
   
    for (int i = 0; i < rands.length; i++) {
      Text row = new Text(String.format("row_%010d", rands[i]));
      Key key = new Key(row);
     
      Value dv = new Value(createValue(rands[i], 40));
     
      try {
        mfw.append(key, dv);
      } catch (IOException e) {
        throw new RuntimeException(e);
      }
    }
   
    try {
      mfw.close();
    } catch (IOException e) {
      throw new RuntimeException(e);
    }
  }
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      // populate the root tablet with info about the default tablet
      // the root tablet contains the key extent and locations of all the
      // metadata tablets
      String initRootTabFile = ServerConstants.getMetadataTableDir() + "/root_tablet/00000_00000."
          + FileOperations.getNewFileExtension(AccumuloConfiguration.getDefaultConfiguration());
      FileSKVWriter mfw = FileOperations.getInstance().openWriter(initRootTabFile, fs, conf, AccumuloConfiguration.getDefaultConfiguration());
      mfw.startDefaultLocalityGroup();
     
      // -----------] root tablet info
      Text rootExtent = Constants.ROOT_TABLET_EXTENT.getMetadataEntry();
     
      // root's directory
      Key rootDirKey = new Key(rootExtent, Constants.METADATA_DIRECTORY_COLUMN.getColumnFamily(), Constants.METADATA_DIRECTORY_COLUMN.getColumnQualifier(), 0);
      mfw.append(rootDirKey, new Value("/root_tablet".getBytes()));
     
      // root's prev row
      Key rootPrevRowKey = new Key(rootExtent, Constants.METADATA_PREV_ROW_COLUMN.getColumnFamily(), Constants.METADATA_PREV_ROW_COLUMN.getColumnQualifier(), 0);
      mfw.append(rootPrevRowKey, new Value(new byte[] {0}));
     
      // ----------] table tablet info
      Text tableExtent = new Text(KeyExtent.getMetadataEntry(new Text(Constants.METADATA_TABLE_ID), Constants.METADATA_RESERVED_KEYSPACE_START_KEY.getRow()));
     
      // table tablet's directory
      Key tableDirKey = new Key(tableExtent, Constants.METADATA_DIRECTORY_COLUMN.getColumnFamily(), Constants.METADATA_DIRECTORY_COLUMN.getColumnQualifier(), 0);
      mfw.append(tableDirKey, new Value(Constants.TABLE_TABLET_LOCATION.getBytes()));
     
      // table tablet time
      Key tableTimeKey = new Key(tableExtent, Constants.METADATA_TIME_COLUMN.getColumnFamily(), Constants.METADATA_TIME_COLUMN.getColumnQualifier(), 0);
      mfw.append(tableTimeKey, new Value((TabletTime.LOGICAL_TIME_ID + "0").getBytes()));
     
      // table tablet's prevrow
      Key tablePrevRowKey = new Key(tableExtent, Constants.METADATA_PREV_ROW_COLUMN.getColumnFamily(), Constants.METADATA_PREV_ROW_COLUMN.getColumnQualifier(),
          0);
      mfw.append(tablePrevRowKey, KeyExtent.encodePrevEndRow(new Text(KeyExtent.getMetadataEntry(new Text(Constants.METADATA_TABLE_ID), null))));
     
      // ----------] default tablet info
      Text defaultExtent = new Text(KeyExtent.getMetadataEntry(new Text(Constants.METADATA_TABLE_ID), null));
     
      // default's directory
      Key defaultDirKey = new Key(defaultExtent, Constants.METADATA_DIRECTORY_COLUMN.getColumnFamily(),
          Constants.METADATA_DIRECTORY_COLUMN.getColumnQualifier(), 0);
      mfw.append(defaultDirKey, new Value(Constants.DEFAULT_TABLET_LOCATION.getBytes()));
     
      // default's time
      Key defaultTimeKey = new Key(defaultExtent, Constants.METADATA_TIME_COLUMN.getColumnFamily(), Constants.METADATA_TIME_COLUMN.getColumnQualifier(), 0);
      mfw.append(defaultTimeKey, new Value((TabletTime.LOGICAL_TIME_ID + "0").getBytes()));
     
      // default's prevrow
      Key defaultPrevRowKey = new Key(defaultExtent, Constants.METADATA_PREV_ROW_COLUMN.getColumnFamily(),
          Constants.METADATA_PREV_ROW_COLUMN.getColumnQualifier(), 0);
      mfw.append(defaultPrevRowKey, KeyExtent.encodePrevEndRow(Constants.METADATA_RESERVED_KEYSPACE_START_KEY.getRow()));
     
      mfw.close();
    }
   
    // create table and default tablets directories
    try {
      fstat = fs.getFileStatus(defaultMetadataTablet);
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    // table exists
    assertTrue(client.tableExists(creds, "bar"));
    assertFalse(client.tableExists(creds, "test"));
    // bulk import
    String filename = dir + "/bulk/import/rfile.rf";
    FileSKVWriter writer = FileOperations.getInstance().openWriter(filename, fs, fs.getConf(), DefaultConfiguration.getInstance());
    writer.startDefaultLocalityGroup();
    writer.append(new org.apache.accumulo.core.data.Key(new Text("a"), new Text("b"), new Text("c")), new Value("value".getBytes()));
    writer.close();
    fs.mkdirs(new Path(dir + "/bulk/fail"));
    client.importDirectory(creds, "bar", dir + "/bulk/import", dir + "/bulk/fail", true);
    scanner = client.createScanner(creds, "bar", null);
    more = client.nextK(scanner, 100);
    client.closeScanner(scanner);
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          keys.add(k);
        }
        Path dir = new Path("/tmp", "bulk_" + UUID.randomUUID().toString());
        Path fail = new Path(dir.toString() + "_fail");
        FileSystem fs = WalkingSecurity.get(state).getFs();
        FileSKVWriter f = FileOperations.getInstance().openWriter(dir + "/securityBulk." + RFile.EXTENSION, fs, fs.getConf(),
            AccumuloConfiguration.getDefaultConfiguration());
        f.startDefaultLocalityGroup();
        fs.mkdirs(fail);
        for (Key k : keys)
          f.append(k, new Value("Value".getBytes()));
        f.close();
        try {
          conn.tableOperations().importDirectory(tableName, dir.toString(), fail.toString(), true);
        } catch (TableNotFoundException tnfe) {
          if (tableExists)
            throw new AccumuloException("Table didn't exist when it should have: " + tableName);
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    List<Integer> rows = new ArrayList<Integer>(startRows);
    rows.add(LOTS);
   
    for (int i = 0; i < parts; i++) {
      String fileName = dir + "/" + String.format("part_%d.", i) + RFile.EXTENSION;
      FileSKVWriter f = FileOperations.getInstance().openWriter(fileName, fs, fs.getConf(), defaultConfiguration);
      f.startDefaultLocalityGroup();
      int start = rows.get(i);
      int end = rows.get(i + 1);
      for (int j = start; j < end; j++) {
        Text row = new Text(String.format(FMT, j));
        for (Column col : COLNAMES) {
          f.append(new Key(row, col.getColumnFamily(), col.getColumnQualifier()), value);
        }
        f.append(new Key(row, MARKER_CF, new Text(markerColumnQualifier)), ONE);
      }
      f.close();
    }
    state.getConnector().tableOperations().importDirectory(Setup.getTableName(), dir.toString(), fail.toString(), true);
    fs.delete(dir, true);
    FileStatus[] failures = fs.listStatus(fail);
    if (failures != null && failures.length > 0) {
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    MockTabletLocator locator = new MockTabletLocator();
    FileSystem fs = FileSystem.getLocal(CachedConfiguration.getInstance());
    AccumuloConfiguration acuConf = AccumuloConfiguration.getDefaultConfiguration();
    String file = "target/testFile.rf";
    fs.delete(new Path(file), true);
    FileSKVWriter writer = FileOperations.getInstance().openWriter(file, fs, fs.getConf(), acuConf);
    writer.startDefaultLocalityGroup();
    Value empty = new Value(new byte[] {});
    writer.append(new Key("a", "cf", "cq"), empty);
    writer.append(new Key("a", "cf", "cq1"), empty);
    writer.append(new Key("a", "cf", "cq2"), empty);
    writer.append(new Key("a", "cf", "cq3"), empty);
    writer.append(new Key("a", "cf", "cq4"), empty);
    writer.append(new Key("a", "cf", "cq5"), empty);
    writer.append(new Key("d", "cf", "cq"), empty);
    writer.append(new Key("d", "cf", "cq1"), empty);
    writer.append(new Key("d", "cf", "cq2"), empty);
    writer.append(new Key("d", "cf", "cq3"), empty);
    writer.append(new Key("d", "cf", "cq4"), empty);
    writer.append(new Key("d", "cf", "cq5"), empty);
    writer.append(new Key("dd", "cf", "cq1"), empty);
    writer.append(new Key("ichabod", "cf", "cq"), empty);
    writer.append(new Key("icky", "cf", "cq1"), empty);
    writer.append(new Key("iffy", "cf", "cq2"), empty);
    writer.append(new Key("internal", "cf", "cq3"), empty);
    writer.append(new Key("is", "cf", "cq4"), empty);
    writer.append(new Key("iterator", "cf", "cq5"), empty);
    writer.append(new Key("xyzzy", "cf", "cq"), empty);
    writer.close();
    List<TabletLocation> overlaps = BulkImporter.findOverlappingTablets(acuConf, fs, locator, new Path(file), credentials);
    Assert.assertEquals(5, overlaps.size());
    Collections.sort(overlaps);
    Assert.assertEquals(new KeyExtent(tableId, new Text("a"), null), overlaps.get(0).tablet_extent);
    Assert.assertEquals(new KeyExtent(tableId, new Text("d"), new Text("cm")), overlaps.get(1).tablet_extent);
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    String odd = new File(importDir, "odd.rf").toString();
    File errorsDir = new File(getFolder(), "errors");
    errorsDir.mkdir();
    fs.mkdirs(new Path(errorsDir.toString()));
    AccumuloConfiguration aconf = AccumuloConfiguration.getDefaultConfiguration();
    FileSKVWriter evenWriter = FileOperations.getInstance().openWriter(even, fs, conf, aconf);
    evenWriter.startDefaultLocalityGroup();
    FileSKVWriter oddWriter = FileOperations.getInstance().openWriter(odd, fs, conf, aconf);
    oddWriter.startDefaultLocalityGroup();
    long timestamp = System.currentTimeMillis();
    Text cf = new Text("cf");
    Text cq = new Text("cq");
    Value value = new Value("value".getBytes());
    for (int i = 0; i < 100; i += 2) {
      Key key = new Key(new Text(String.format("%8d", i)), cf, cq, timestamp);
      evenWriter.append(key, value);
      key = new Key(new Text(String.format("%8d", i + 1)), cf, cq, timestamp);
      oddWriter.append(key, value);
    }
    evenWriter.close();
    oddWriter.close();
    assertEquals(0, ts.shell.getExitCode());
    ts.exec("createtable " + table, true);
    ts.exec("importdirectory " + importDir + " " + errorsDir + " true", true);
    ts.exec("scan -r 00000000", true, "00000000", true);
    ts.exec("scan -r 00000099", true, "00000099", true);
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        String tmpFile = memDumpDir + "/memDump" + UUID.randomUUID() + "." + RFile.EXTENSION;
       
        Configuration newConf = new Configuration(conf);
        newConf.setInt("io.seqfile.compress.blocksize", 100000);
       
        FileSKVWriter out = new RFileOperations().openWriter(tmpFile, fs, newConf, ServerConfiguration.getSiteConfiguration());
       
        InterruptibleIterator iter = map.skvIterator();
      
        HashSet<ByteSequence> allfams= new HashSet<ByteSequence>();
       
        for(Entry<String, Set<ByteSequence>> entry : lggroups.entrySet()){
          allfams.addAll(entry.getValue());
          out.startNewLocalityGroup(entry.getKey(), entry.getValue());
          iter.seek(new Range(), entry.getValue(), true);
          dumpLocalityGroup(out, iter);
        }
       
        out.startDefaultLocalityGroup();
        iter.seek(new Range(), allfams, false);
      
        dumpLocalityGroup(out, iter);
       
        out.close();
       
        log.debug("Created mem dump file " + tmpFile);
       
        memDumpFile = tmpFile;
       
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Related Classes of org.apache.accumulo.core.file.FileSKVWriter

  • org.apache.accumulo.core.client.mapreduce.AccumuloFileOutputFormat
  • org.apache.accumulo.core.client.mock.MockTableOperationsTest
  • org.apache.accumulo.core.file.map.MapFileOperations
  • org.apache.accumulo.core.file.rfile.CreateEmpty
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  • org.apache.accumulo.proxy.SimpleTest
  • org.apache.accumulo.server.client.BulkImporterTest
  • org.apache.accumulo.server.init.Initialize
  • org.apache.accumulo.server.tabletserver.Compactor
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