How to use

getAllocator

method

in

org.apache.cassandra.db.Memtable

  public void adjustMemtableSize(long additionalSpace, OpOrder.Group opGroup)
  {
    baseCfs.getTracker().getView().getCurrentMemtable().getAllocator().onHeap().allocate(additionalSpace, opGroup);
  }
};

  public Long getValue()
  {
    return cfs.getTracker().getView().getCurrentMemtable().getAllocator().onHeap().owns();
  }
});

  public Long getValue()
  {
    return cfs.getTracker().getView().getCurrentMemtable().getAllocator().offHeap().owns();
  }
});

  public Long getValue()
  {
    return cfs.getTracker().getView().getCurrentMemtable().getAllocator().offHeap().owns();
  }
});

  public Long value()
  {
    return cfs.getDataTracker().getView().getCurrentMemtable().getAllocator().offHeap().owns();
  }
});

  public Long getValue()
  {
    return cfs.getTracker().getView().getCurrentMemtable().getAllocator().onHeap().owns();
  }
});

  public void adjustMemtableSize(long additionalSpace, OpOrder.Group opGroup)
  {
    baseCfs.getTracker().getView().getCurrentMemtable().getAllocator().onHeap().allocate(additionalSpace, opGroup);
  }
};

  public Long value()
  {
    return cfs.getDataTracker().getView().getCurrentMemtable().getAllocator().onHeap().owns();
  }
});

  public Long getValue()
  {
    return cfs.getTracker().getView().getCurrentMemtable().getAllocator().onHeap().owns();
  }
});

  public void adjustMemtableSize(long additionalSpace, OpOrder.Group opGroup)
  {
    baseCfs.getTracker().getView().getCurrentMemtable().getAllocator().onHeap().allocate(additionalSpace, opGroup);
  }
};

  public Long getValue()
  {
    return cfs.getTracker().getView().getCurrentMemtable().getAllocator().offHeap().owns();
  }
});

  public Long getValue()
  {
    long size = 0;
    for (ColumnFamilyStore cfs2 : cfs.concatWithIndexes())
      size += cfs2.getTracker().getView().getCurrentMemtable().getAllocator().onHeap().owns();
    return size;
  }
});

  public Long getValue()
  {
    long size = 0;
    for (ColumnFamilyStore cfs2 : cfs.concatWithIndexes())
      size += cfs2.getTracker().getView().getCurrentMemtable().getAllocator().offHeap().owns();
    return size;
  }
});

  public Long getValue()
  {
    long size = 0;
    for (ColumnFamilyStore cfs2 : cfs.concatWithIndexes())
      size += cfs2.getTracker().getView().getCurrentMemtable().getAllocator().offHeap().owns();
    return size;
  }
});

private void logFlush()
{
  // reclaiming includes that which we are GC-ing;
  float onHeapRatio = 0, offHeapRatio = 0;
  long onHeapTotal = 0, offHeapTotal = 0;
  Memtable memtable = getDataTracker().getView().getCurrentMemtable();
  onHeapRatio +=  memtable.getAllocator().onHeap().ownershipRatio();
  offHeapRatio += memtable.getAllocator().offHeap().ownershipRatio();
  onHeapTotal += memtable.getAllocator().onHeap().owns();
  offHeapTotal += memtable.getAllocator().offHeap().owns();
  for (SecondaryIndex index : indexManager.getIndexes())
  {
    if (index.getIndexCfs() != null)
    {
      MemtableAllocator allocator = index.getIndexCfs().getDataTracker().getView().getCurrentMemtable().getAllocator();
      onHeapRatio += allocator.onHeap().ownershipRatio();
      offHeapRatio += allocator.offHeap().ownershipRatio();
      onHeapTotal += allocator.onHeap().owns();
      offHeapTotal += allocator.offHeap().owns();
    }
  }
  logger.info("Enqueuing flush of {}: {}", name, String.format("%d (%.0f%%) on-heap, %d (%.0f%%) off-heap",
                                 onHeapTotal, onHeapRatio * 100, offHeapTotal, offHeapRatio * 100));
}

  public Long getValue()
  {
    long size = 0;
    for (ColumnFamilyStore cfs2 : cfs.concatWithIndexes())
      size += cfs2.getTracker().getView().getCurrentMemtable().getAllocator().onHeap().owns();
    return size;
  }
});

  public Long getValue()
  {
    long size = 0;
    for (ColumnFamilyStore cfs2 : cfs.concatWithIndexes())
      size += cfs2.getTracker().getView().getCurrentMemtable().getAllocator().offHeap().owns();
    return size;
  }
});

  public Long value()
  {
    long size = 0;
    for (ColumnFamilyStore cfs2 : cfs.concatWithIndexes())
      size += cfs2.getDataTracker().getView().getCurrentMemtable().getAllocator().offHeap().owns();
    return size;
  }
});

  public Long value()
  {
    long size = 0;
    for (ColumnFamilyStore cfs2 : cfs.concatWithIndexes())
      size += cfs2.getDataTracker().getView().getCurrentMemtable().getAllocator().onHeap().owns();
    return size;
  }
});

  public Long getValue()
  {
    long size = 0;
    for (ColumnFamilyStore cfs2 : cfs.concatWithIndexes())
      size += cfs2.getTracker().getView().getCurrentMemtable().getAllocator().onHeap().owns();
    return size;
  }
});