[HDFS-9201] Namenode Performance Improvement : Using for loop without iterator

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Labels: namenode performance
• Assignee: nijel
• Reporter: nijel
• Created: 06/Oct/15 11:51
• Updated: 09/Oct/15 21:04

Description

As discussed in HBASE-12023, the for each loop syntax will create few extra objects and garbage.

For arrays and Lists can change to the traditional syntax.
This can improve memory foot print and can result in performance gain.