Ejemplo n.º 1
0
  public static MMappedIndex mergedRealtimeIndex() {
    synchronized (log) {
      if (mergedRealtime != null) {
        return mergedRealtime;
      }

      try {
        IncrementalIndex top = makeRealtimeIndex("druid.sample.tsv.top");
        IncrementalIndex bottom = makeRealtimeIndex("druid.sample.tsv.bottom");

        File tmpFile = File.createTempFile("yay", "who");
        tmpFile.delete();

        File topFile = new File(tmpFile, "top");
        File bottomFile = new File(tmpFile, "bottom");
        File mergedFile = new File(tmpFile, "merged");

        topFile.mkdirs();
        topFile.deleteOnExit();
        bottomFile.mkdirs();
        bottomFile.deleteOnExit();
        mergedFile.mkdirs();
        mergedFile.deleteOnExit();

        IndexMerger.persist(top, DATA_INTERVAL, topFile);
        IndexMerger.persist(bottom, DATA_INTERVAL, bottomFile);

        mergedRealtime =
            com.metamx.druid.index.v1.IndexIO.mapDir(
                IndexMerger.mergeMMapped(
                    Arrays.asList(
                        com.metamx.druid.index.v1.IndexIO.mapDir(topFile),
                        com.metamx.druid.index.v1.IndexIO.mapDir(bottomFile)),
                    METRIC_AGGS,
                    mergedFile));

        return mergedRealtime;
      } catch (IOException e) {
        throw Throwables.propagate(e);
      }
    }
  }
Ejemplo n.º 2
0
  public static MMappedIndex persistRealtimeAndLoadMMapped(IncrementalIndex index) {
    try {
      File someTmpFile = File.createTempFile("billy", "yay");
      someTmpFile.delete();
      someTmpFile.mkdirs();
      someTmpFile.deleteOnExit();

      IndexMerger.persist(index, someTmpFile);
      return com.metamx.druid.index.v1.IndexIO.mapDir(someTmpFile);
    } catch (IOException e) {
      throw Throwables.propagate(e);
    }
  }