[HDFS-8494] Remove hard-coded chunk size in favor of ECZone

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: HDFS-7285
• Fix Version/s: HDFS-7285
• Assignee: Kai Sasaki
• Reporter: Kai Sasaki
• Created: 29/May/15 00:57
• Updated: 23/Sep/15 00:05
• Resolved: 23/Sep/15 00:05

Description

It is necessary to remove hard-coded values inside NameNode configured in HdfsConstants. In this JIRA, we can remove chunkSize gracefully in favor of HDFS-8375.

Because cellSize is now originally stored only in ErasureCodingZone, BlockInfoStriped can receive cellSize in addition to ECSchema when its initialization.

Issue Links

• blocks: HDFS-8062 Remove hard-coded values in favor of EC schema
• is duplicated by: HDFS-8882 Erasure Coding: Use datablocks, parityblocks and cell size from ErasureCodingPolicy
• relates to: HDFS-8375 Add cellSize as an XAttr to ECZone
• relates to: HDFS-8530 Restore ECZone info inside FSImageLoader