[HDFS-10929] Ozone:SCM: explore if we need 3 maps for tracking the state of nodes

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: HDFS-7240
• Fix Version/s: HDFS-7240
• Component/s: ozone
• Labels: OzonePostMerge
• Target Version/s: HDFS-7240
• Assignee: Unassigned
• Reporter: Anu Engineer
• Created: 29/Sep/16 17:09
• Updated: 06/Sep/17 23:38

Description

Based on comments from jingzhao, This jira tracks if we really need 3 maps in the SCMNodeManager class or if we should collapse them to a single one. The reason why we have 3 maps is to reduce lock contention. We might be able to collapse this into a single map. This JIRA is to track that action item.