[HDFS-16844] [RBF] The routers should be resiliant against exceptions from StateStore

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.3.4
• Fix Version/s: 3.4.0, 3.3.5
• Component/s: rbf
• Labels: pull-request-available
• Target Version/s: 3.4.0, 3.3.5
• Hadoop Flags: Reviewed
• Assignee: Owen O'Malley
• Reporter: Owen O'Malley
• Created: 15/Nov/22 23:20
• Updated: 28/Jan/24 07:38
• Resolved: 18/Nov/22 17:31

Description

Currently, a single exception from the StateStore will cripple a router by clearing the caches before the replacement is loaded. Since the routers have the information in an in-memory cache, it is better to keep running. There is still the timeout that will push the router into safe-mode if it can't load the state store over a longer period of time.

Issue Links

• is duplicated by: HDFS-16843 [RBF] The routers should be resiliant against exceptions from StateStore
• links to: GitHub Pull Request #5138