[HDFS-8682] Should not remove decommissioned node,while calculating the number of live/dead decommissioned node.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.7.4
• Hadoop Flags: Reviewed
• Assignee: J.Andreina
• Reporter: J.Andreina
• Created: 27/Jun/15 09:27
• Updated: 30/Jul/16 01:00
• Resolved: 27/Aug/15 07:42

Description

True is passed as argument for removing decommissioned node from live/dead node list ,while calculating the number of live/dead decommissioned node.

public void fetchDatanodes(final List<DatanodeDescriptor> live,
final List<DatanodeDescriptor> dead, final boolean removeDecommissionNode )

In FSNamesystem#getNumDecomLiveDataNodes and FSNamesystem#getNumDecomDeadDataNodes , calculation is done as below.
getBlockManager().getDatanodeManager().fetchDatanodes(null, dead, true);

Issue Links

• is required by: HDFS-8780 Fetching live/dead datanode list with arg true for removeDecommissionNode,returns list with decom node.