[HBASE-11206] Enable automagically tweaking memstore and blockcache sizes

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Assignee: Unassigned
• Reporter: Michael Stack
• Created: 19/May/14 23:47
• Updated: 17/Jun/22 05:47
• Resolved: 11/Jun/22 19:19

Description

HBASE-5349
"Automagically tweak global memstore and block cache sizes based on workload" adds a nice new feature. It is off by default. Lets turn it on for 0.99. Liang Xie is concerned that automatically shifting blockcache and memstore sizes could wreck havoc w/ GC'ing in low-latency serving situation – a valid concern – but lets enable this feature in 0.99 and see how it does. Can always disable it before 1.0 if a problem.