[BOOKKEEPER-1106] Ledger eviction should not impact write performance

• Type: Bug
• Status: In Progress
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 4.5.0
• Fix Version/s: 4.6.0
• Component/s: bookkeeper-server
• Labels: ghmigrated iktriage0
• Assignee: Yiming Zang
• Reporter: Yiming Zang
• Created: 16/Sep/17 17:01
• Updated: 17/Oct/17 21:24

Description

When read behind happens, it would quickly read bunch of ledgers, which will evict current active ledgers for writing from the ledger cache. with the ledger being evicted from cache, it would impact the write performance.

In order to address this issue, we should separate write FileInfo and read FileInfo in the cache.