Fig. 19

The total execution time of Apache Hadoop in regard to the value of memory requested for all map and reduce tasks. Sorting \(10^7\), \(10^8\), \(10^9\) and \(10^{10}\) records. The compute nodes were placed on the same nodes as datanodes. Execution with \(N_{\text {tasks}}=640\) on 8 nodes. There is no data point for 5 GB and \(10^{10}\) records