[HDFS-12967] NNBench should support multi-cluster access

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.3.0
• Component/s: benchmarks
• Assignee: Chen Zhang
• Reporter: Chen Zhang
• Created: 28/Dec/17 04:45
• Updated: 02/Oct/19 17:15
• Resolved: 29/Jul/19 12:55

Description

Sometimes we need to run NNBench for some scaling tests after made some improvements on NameNode, so we have to deploy a new HDFS cluster and a new Yarn cluster.
If NNBench support multi-cluster access, we only need to deploy a new HDFS test cluster and add it to existing YARN cluster, it'll make the scaling test easier.

Even more, if we want to do some A-B test, we have to run NNBench on different HDFS clusters, this patch will be helpful.