[HBASE-7303] Quit using reflection for the method DFSOutputStream#getNumCurrentReplicas(…)

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Not A Problem
• Affects Version/s: 0.95.2
• Assignee: Unassigned
• Reporter: Harsh J
• Created: 07/Dec/12 23:55
• Updated: 15/Jun/22 17:33
• Resolved: 15/Jun/22 17:33

Description

Given that we've raised our minimum version guarantee for HBase with 1.x carrying the 0.20-append code finally, and all subsequent releases (0.21*, 0.22, 0.23 and 2) have this method available in them, I don't see a reason to have the reflection based getNumCurrentReplicas invocation (via HDFS-826) anymore.

We could save ourselves quite a bit of perf. penalty by removing this check and simply calling the method directly, as its API has not changed across releases.