[HDFS-5874] Should not compare DataNode current layout version with that of NameNode in DataStrorage

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: HDFS-5535 (Rolling upgrades)
• Component/s: datanode
• Hadoop Flags: Reviewed
• Assignee: Brandon Li
• Reporter: Brandon Li
• Created: 03/Feb/14 23:49
• Updated: 07/Feb/14 18:27
• Resolved: 07/Feb/14 18:27

Description

As Vinayakumar B pointed out in HDFS-5754: in DataStorage DATANODE_LAYOUT_VERSION should not compare with NameNode layout version anymore.

      if (DataNodeLayoutVersion.supports(
          LayoutVersion.Feature.FEDERATION,
          HdfsConstants.DATANODE_LAYOUT_VERSION) && 
          HdfsConstants.DATANODE_LAYOUT_VERSION == nsInfo.getLayoutVersion()) {
        readProperties(sd, nsInfo.getLayoutVersion());

Issue Links

• is related to: HDFS-5754 Split LayoutVerion into NamenodeLayoutVersion and DatanodeLayoutVersion