Hadoop Benchmark: Cloudera vs. Hortonworks vs. MapR
Evaluating Hadoop distributions across 7 workloads
Cloudera, Hortonworks, and MapR are the most popular Hadoop distributions available today. However, even with this short list, there are few unbiased comparisons of their cluster performance. So, today we are introducing a 65-page research paper that contains a vendor-independent overview of Cloudera, Hortonworks, and MapR distributions.
Vladimir Starostenkov of Altoros compared throughput of 8-, 12-, and 16-node clusters against the performance of a 4-node cluster. The speed of data processing of 8-, 12-, and 16-node clusters were divided by the throughput of a 4-node cluster. The results were quite unexpected.
Hadoop cluster performance
In a recent interview to TechTarget, our R&D Engineer Dmitriy Kalyada explained why adding nodes to a Hadoop cluster not always results in better performance. The new benchmark of Hadoop distributions confirms this behavior under several workloads.
For instance, when sorting unstructured text data (the Sort workload), the performance of a MapR cluster was growing linearly, as we were increasing its size from 4 to 8 nodes. After that, when new machines were added, the throughput of each separate node was degrading.
As you can see on the diagram, an 8-node cluster turned out to be faster than clusters of 12 and 16 nodes. The same situation was observed in the DFSIO write test. Other Hadoop distributions had similar results under some of the workloads, too.
Download the benchmark to see all the performance results (83 diagrams, 7 types of workloads), including:
- Detailed performance results for 4-, 8-, 12-, and 16-node clusters.
- How the size of a cluster affects data processing speed.
- What issues slow down deployment and how to maximize Hadoop processing speed.
- How different clusters behave under CPU and disk-bound workloads (including Bayes, DFSIO, Hive aggregation, PageRank, Sort, TeraSort, and WordCount).
In the comments below, please share your thoughts about the performance results.