decommissioned nodes report not consistent / clear
--------------------------------------------------
Key: HDFS-1290
URL: https://issues.apache.org/jira/browse/HDFS-1290
Project: Hadoop HDFS
Issue Type: Bug
Components: name-node
Affects Versions: 0.20.1
Environment: fedora 12
Reporter: Arun Ramakrishnan
after i add the list of decom nodes to exclude list and -refreshNodes.
In the WebUI the decom/excluded nodes show up in both the live node list and
the dead node list.
when I do -report from the command line.
"""
Datanodes available: 14 (20 total, 6 dead)
"""
The problem here is that is only 14 nodes total including the 6 added to the
exclude list.
Now, in the node level status for each of the nodes, the excluded nodes say
""""
Decommission Status : Normal
DFS Used%: 100%
DFS Remaining%: 0%
""""
But, all the nodes say the same thing. I think if it said something like
"in-progress", it would be more informative.
note. one thing distinguishing these excluded nodes is that they all report 0
or 100% values in -report.
Cause, at this point i know from
https://issues.apache.org/jira/browse/HDFS-1125 that one may have to restart
the cluster to completely remove the nodes.
But, i have no clue when i should restart.
Ultimately, whats needed is some indication to when the decomission is complete
so that all references to the excluded nodes ( from excludes, slaves ) and
restart the cluster.
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