[HDFS-546] DatanodeDescriptor block iterator should be BlockInfo based rather than Block.

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.21.0
• Fix Version/s: 0.21.0
• Component/s: namenode
• Hadoop Flags: Reviewed
• Assignee: Konstantin Shvachko
• Reporter: Konstantin Shvachko
• Created: 15/Aug/09 00:34
• Updated: 24/Aug/10 20:48
• Resolved: 16/Aug/09 20:00

Description

DatanodeDescriptor.BlockIterator currently implements Iterator<Block>. I need to change it to implement Iterator<BlockInfo> instead. Otherwise, I cannot filter out blocks under construction in order to exclude them from balancing, as Hairong suggested in HDFS-517.

Issue Links

• blocks: HDFS-517 Introduce BlockInfoUnderConstruction to reflect block replica states while writing.