[HDFS-12218] Rename split EC / replicated block metrics in BlockManager

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 3.0.0-beta1
• Fix Version/s: 3.0.0-beta1
• Component/s: erasure-coding, metrics
• Labels: hdfs-ec-3.0-must-do
• Target Version/s: 3.0.0-beta1
• Hadoop Flags: Incompatible change

Release Note

This renames ClientProtocol#getECBlockGroupsStats to ClientProtocol#getEcBlockGroupStats and ClientProtocol#getBlockStats to ClientProtocol#getReplicatedBlockStats. The return-type classes have also been similarly renamed. Their fields have also been renamed to drop the "stats" suffix.

Additionally, ECBlockGroupStats#pendingDeletionBlockGroups has been renamed to ECBlockGroupStats#pendingDeletionBlocks, to clarify that this is the number of blocks, not block groups, pending deletion. The corresponding NameNode metric has also been renamed to PendingDeletionECBlocks.

• Assignee: Andrew Wang
• Reporter: Andrew Wang
• Created: 28/Jul/17 18:28
• Updated: 07/Oct/17 02:24
• Resolved: 08/Sep/17 00:00

Description

Noted in HDFS-12206, we should propagate the naming changes made in HDFS-12206 for FSNamesystem into BlockManager and related classes. Also an opportunity to clarify usage of "ECBlocks" vs "ECBlockGroups" in some names.

Issue Links

• is related to: HDFS-12206 Rename the split EC / replicated block metrics