[HDFS-16257] [HDFS] [RBF] Guava cache performance issue in Router MountTableResolver

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.10.1
• Fix Version/s: 2.10.2
• Labels: pull-request-available
• Assignee: Janus Chow
• Reporter: Janus Chow
• Created: 06/Oct/21 07:48
• Updated: 18/Oct/21 11:00
• Resolved: 18/Oct/21 10:59

Description

Branch 2.10.1 uses guava version of 11.0.2, which has a bug which affects the performance of cache, which was mentioned in HDFS-13821.

Since upgrading guava version seems affecting too much, this ticket is to add a configuration setting when initializing cache to walk around this issue.

Issue Links

• relates to: HDFS-13821 RBF: Add dfs.federation.router.mount-table.cache.enable so that users can disable cache
• links to: GitHub Pull Request #3524