[HBASE-6483] Fully enable ServerShutdownHandler after master joins the cluster

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Assignee: Unassigned
• Reporter: Jimmy Xiang
• Created: 31/Jul/12 22:37
• Updated: 13/Jun/22 18:58
• Resolved: 15/Aug/12 18:26

Description

Once ROOT and META are assigned, ServerShutdownHandler is enabled. So that we can handle meta/root region server failure before joinCluster is completed. However, we can hold ServerShutdownHandler a little bit more for the user region assignments, i.e. doesn't assign user regions before joinCluster is returned. If so, we can avoid some region assignments racing: same regions are trying to be assigned in both joinCluster and ServerShutdownHandler.