[HDFS-7894] Rolling upgrade readiness is not updated in jmx until query command is issued.

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 2.6.1, 2.8.0, 2.7.1, 3.0.0-alpha1
• Labels: 2.6.1-candidate
• Target Version/s: 2.8.0
• Hadoop Flags: Reviewed
• Assignee: Brahma Reddy Battula
• Reporter: Kihwal Lee
• Created: 05/Mar/15 22:08
• Updated: 06/Jan/17 00:44
• Resolved: 08/May/15 14:34

Description

When a hdfs rolling upgrade is started and a rollback image is created/uploaded, the active NN does not update its rollingUpgradeInfo until it receives a query command via RPC. This results in inconsistent info being showing up in the web UI and its jmx page.

Issue Links

• is related to: HDFS-8656 Preserve compatibility of ClientProtocol#rollingUpgrade after finalization