[HBASE-19508] ReadOnlyConfiguration throws exception if any Configuration in current context calls addDefautlResource

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.0.0-beta-1, 2.0.0
• Component/s: conf
• Hadoop Flags: Reviewed
• Assignee: Michael Stack
• Reporter: Michael Stack
• Created: 13/Dec/17 17:48
• Updated: 01/Aug/18 06:22
• Resolved: 13/Dec/17 18:30

Description

Reported by psomogyi up on HBASE-19295, the issue that added CpEnv returning a read-only Configuration.

Issue is that hadoop Configuration registers every created Configuration in a static REGISTRY on construction. A call to addDefaultResource – e.g. sqoop does this in tests to get its configurations into the mix – results in a call to every registered Configurations loadResource.. which is disallowed in our read-only Configuration.

Issue Links

• is related to: HBASE-19295 The Configuration returned by CPEnv should be read-only.
• links to: Review Board (master)