public static void dispose(java.nio.ByteBuffer buffer)
Attempt to clean up a ByteBuffer if it is memory-mapped. This uses an *unsafe* Sun API that
might cause errors if one attempts to read from the unmapped buffer, but it's better than
waiting for the GC to find it because that could lead to huge numbers of open files. There's
unfortunately no standard API to do this.
buffer - (undocumented)
public static void updateRddInfo(scala.collection.Seq<RDDInfo> rddInfos,
Update the given list of RDDInfo with the given list of storage statuses.
This method overwrites the old values stored in the RDDInfo's.
rddInfos - (undocumented)
statuses - (undocumented)
public static scala.collection.Map<BlockId,scala.collection.Seq<String>> getRddBlockLocations(int rddId,
Return a mapping from block ID to its locations for each block that belongs to the given RDD.