[HADOOP-8159] NetworkTopology: getLeaf should check for invalid topologies

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.1.0, 2.0.0-alpha
• Hadoop Flags: Reviewed
• Assignee: Colin Patrick McCabe
• Reporter: Colin Patrick McCabe
• Created: 10/Mar/12 01:06
• Updated: 23/May/12 21:15
• Resolved: 26/Mar/12 23:20

Description

Currently, in NetworkTopology, getLeaf doesn't do too much validation on the InnerNode object itself. This results in us getting ClassCastException sometimes when the network topology is invalid. We should have a less confusing exception message for this case.

Issue Links

• relates to: HDFS-3129 NetworkTopology: add test that getLeaf should check for invalid topologies