[HADOOP-14970] MiniHadoopClusterManager doesn't respect lack of format option

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.2.0
• Fix Version/s: 2.10.0, 2.8.4, 3.2.0, 3.1.1, 2.9.2, 3.0.3, 2.7.7
• Target Version/s: 2.7.6
• Hadoop Flags: Reviewed
• Assignee: Erik Krogen
• Reporter: Erik Krogen
• Created: 20/Oct/17 18:16
• Updated: 30/May/19 02:20
• Resolved: 13/Apr/18 07:07

Description

The CLI MiniCluster, MiniHadoopClusterManager, says that by default it does not format its directories, and provides the -format option to specify that it should do so. However, it builds its MiniDFSCluster like:

      dfs = new MiniDFSCluster.Builder(conf).nameNodePort(nnPort)
          .nameNodeHttpPort(nnHttpPort).numDataNodes(numDataNodes)
          .startupOption(dfsOpts).build();

MiniDFSCluster.Builder, by default, sets format to true, so even though the startupOption is REGULAR, it will still format regardless of whether or not the flag is supplied.

Issue Links

• breaks: HBASE-22490 Nightly client integration test fails with hadoop-3
• is depended upon by: HADOOP-15509 Release Hadoop 2.7.7