Hadoop實戰——如何獲取當前Map對象所在的block id

   如題，或者獲取split ID in the mapfunction。

=========================================

InputSplit is = context.getInputSplit();

splitId = MD5Hash.digest(is.toString()).toString();

-------------------------------------------------------------------

lastSplit = reporter.getInputSplit();

splitId = MD5Hash.digest(lastSplit.toString()).toString();