Travis Thompson created HDFS-6180:
-------------------------------------
Summary: dead node count / listing is very broken in JMX and old
GUI
Key: HDFS-6180
URL: https://issues.apache.org/jira/browse/HDFS-6180
Project: Hadoop HDFS
Issue Type: Bug
Affects Versions: 2.3.0
Reporter: Travis Thompson
After bringing up a 578 node cluster with 13 dead nodes, 0 were reported on the
new GUI, but showed up properly in the datanodes tab. Some nodes are also
being double reported in the deadnode and inservice section (22 show up dead,
565 show up alive, 9 duplicated nodes).
>From /jmx (confirmed that it's the same in jconsole):
{noformat}
{
"name" : "Hadoop:service=NameNode,name=FSNamesystemState",
"modelerType" : "org.apache.hadoop.hdfs.server.namenode.FSNamesystem",
"CapacityTotal" : 5477748687372288,
"CapacityUsed" : 24825720407,
"CapacityRemaining" : 5477723861651881,
"TotalLoad" : 565,
"SnapshotStats" : "{\"SnapshottableDirectories\":0,\"Snapshots\":0}",
"BlocksTotal" : 21065,
"MaxObjects" : 0,
"FilesTotal" : 25454,
"PendingReplicationBlocks" : 0,
"UnderReplicatedBlocks" : 0,
"ScheduledReplicationBlocks" : 0,
"FSState" : "Operational",
"NumLiveDataNodes" : 565,
"NumDeadDataNodes" : 0,
"NumDecomLiveDataNodes" : 0,
"NumDecomDeadDataNodes" : 0,
"NumDecommissioningDataNodes" : 0,
"NumStaleDataNodes" : 1
},
{noformat}
I'm not going to include deadnode/livenodes because the list is huge, but I've
confirmed there are 9 nodes showing up in both deadnodes and livenodes.
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