[HDFS-2174] Complete decoupling of failure states between edits and image dirs - ASF JIRA

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Details

Type: Sub-task
Status: Open
Priority: Major
Resolution: Unresolved
Affects Version/s: 0.23.0
Fix Version/s: None
Component/s: namenode
Labels:
None

Description

After ~~HDFS-1073~~, there is no reason to couple the failure state of edits dirs and image dirs. However, there is still a small amount of coupling in that image dirs are restored only when edits are rolled. This is not problematic, and mirrors the old behavior, but we could do better now – eg provide an interfaces for ops to monitor and manually manage image dir states at any point in time.

This is targeted to be fixed after ~~HDFS-1073~~ is merged.