[HDFS-2727] libhdfs should get the default block size from the server

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.23.0, 1.0.0, 2.0.0-alpha
• Fix Version/s: 2.0.2-alpha
• Component/s: libhdfs
• Hadoop Flags: Incompatible change, Reviewed
• Release Note: libhdfs now uses the server block size configuration rather than the deprecated dfs.block.size client configuration.
• Assignee: Colin McCabe
• Reporter: Sho Shimauchi
• Created: 29/Dec/11 09:20
• Updated: 11/Oct/12 17:46
• Resolved: 21/Aug/12 03:49

Description

libhdfs uses the deprecated property dfs.block.size. It would be better for libhdfs to use the FileSystem#getDefaultBlockSize API instead.

This API has two advantages:
1. It uses the new, non-deprecated dfs.blocksize property
2. It handles string escapes like 'M' for 'megabytes' etc. which can appear in dfs.blocksize and dfs.block.size