[KUDU-500] Changes to SysTables should be queryable on follower leaders upon replication

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: M5
• Component/s: master
• Labels: roadmap-candidate
• Target Version/s: Backlog
• Assignee: Unassigned
• Reporter: Alex Feinberg
• Due: 07/Nov/14
• Created: 11/Sep/14 13:06
• Updated: 03/Jun/20 15:33

Description

Currently CatalogManager serves requests from its in-memory objects. However, these objects are not updated on the replicas. There are two approaches for this: one is to serve CatalogManager from the underlying tablet (accepting potential latency hits, but making the implementation simpler), another is to implement callbacks on transaction completion on replicas (like MarkDirty but called whenever writes are committed on a replica).

Issue Links

• is related to: KUDU-3115 Improve scalability of Kudu masters