[HDFS-13847] Clean up ErasureCodingPolicyManager

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.0.0
• Component/s: erasure-coding
• Assignee: Unassigned
• Reporter: Xiao Chen
• Created: 22/Aug/18 16:33
• Updated: 22/Aug/18 16:34

Description

ErasureCodingPolicyManager class is declared as LimitedPrivate for HDFS.

This doesn't seem to make sense, as I have checked all its usages are strictly within hadoop-hdfs project.
According to our compat guide:

Within a component Hadoop developers are free to use Private and Limited Private APIs,

We should tune this down to just Private.

This is identified because an internal testing marked HDFS-13772 as incompatible, due to the method signature changes on the ECPM class.