[HDFS-8793] Improve BlockManager memory and performance

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Target Version/s: 2.7.1
• Assignee: Yi Liu
• Reporter: Yi Liu
• Created: 17/Jul/15 08:27
• Updated: 17/Jul/15 13:53

Description

Umbrella JIRA to improve BlockManager memory and performance.

Sub-Tasks

• BlockManager#postponedMisreplicatedBlocks should use a LightWeightHashSet to save memory: Resolved
• Improve CorruptReplicasMap#corruptReplicasMap: Resolved
• Improve InvalidateBlocks#node2blocks: Resolved
• BlockManager#excessReplicateMap should use a HashMap: Resolved
• Implement ShrinkableHashMap extends java HashMap and use properly: Resolved