[BOOKKEEPER-237] Automatic recovery of under-replicated ledgers and its entries

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Implemented
• Affects Version/s: 4.0.0, 4.1.0
• Component/s: bookkeeper-auto-recovery
• Assignee: Rakesh Radhakrishnan
• Reporter: Rakesh Radhakrishnan
• Created: 04/May/12 12:37
• Updated: 14/Jan/13 14:23
• Resolved: 04/Jan/13 11:59

Description

As per the current design of BookKeeper, if one of the BookKeeper server dies, there is no automatic mechanism to identify and recover the under replicated ledgers and its corresponding entries. This would lead to losing the successfully written entries, which will be a critical problem in sensitive systems. This document is trying to describe few proposals to overcome these limitations.