我有一个三节点hadoop集群正在运行。出于某种原因，当datanode从属服务器启动时，它们会识别一个甚至在我的网络上都不存在的ip地址。这是我的主机名和ipMap。

nodes:
  - hostname: hadoop-master
    ip: 192.168.51.4
  - hostname: hadoop-data1
    ip: 192.168.52.4
  - hostname: hadoop-data2
    ip: 192.168.52.6

正如您在下面看到的，hadoop主节点启动正常，但是在其他两个节点中，只有一个节点显示为livedatanode，并且无论哪个节点显示都始终具有ip192.168.51.1，正如您在上面看到的，它甚至不存在于我的网络中。

hadoop@hadoop-master:~$ hdfs dfsadmin -report
Safe mode is ON
Configured Capacity: 84482326528 (78.68 GB)
Present Capacity: 75735965696 (70.53 GB)
DFS Remaining: 75735281664 (70.53 GB)
DFS Used: 684032 (668 KB)
DFS Used%: 0.00%
Under replicated blocks: 0
Blocks with corrupt replicas: 0
Missing blocks: 0
Missing blocks (with replication factor 1): 0

-------------------------------------------------
Live datanodes (2):

Name: 192.168.51.1:50010 (192.168.51.1)
Hostname: hadoop-data2
Decommission Status : Normal
Configured Capacity: 42241163264 (39.34 GB)
DFS Used: 303104 (296 KB)
Non DFS Used: 4305530880 (4.01 GB)
DFS Remaining: 37935329280 (35.33 GB)
DFS Used%: 0.00%
DFS Remaining%: 89.81%
Configured Cache Capacity: 0 (0 B)
Cache Used: 0 (0 B)
Cache Remaining: 0 (0 B)
Cache Used%: 100.00%
Cache Remaining%: 0.00%
Xceivers: 1
Last contact: Fri Sep 25 13:54:23 UTC 2015

Name: 192.168.51.4:50010 (hadoop-master)
Hostname: hadoop-master
Decommission Status : Normal
Configured Capacity: 42241163264 (39.34 GB)
DFS Used: 380928 (372 KB)
Non DFS Used: 4440829952 (4.14 GB)
DFS Remaining: 37799952384 (35.20 GB)
DFS Used%: 0.00%
DFS Remaining%: 89.49%
Configured Cache Capacity: 0 (0 B)
Cache Used: 0 (0 B)
Cache Remaining: 0 (0 B)
Cache Used%: 100.00%
Cache Remaining%: 0.00%
Xceivers: 1
Last contact: Fri Sep 25 13:54:21 UTC 2015

我确实尝试为每个主机显式添加dfs.datanode.address，但在这种情况下，它甚至无法显示为活动节点。下面是我的hdfs-site.xml的样子（注意，我在dfs.datanode.address set和absent中都尝试过）。

<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!--
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License. See accompanying LICENSE file.
-->

<!-- Put site-specific property overrides in this file. -->

<configuration>
  <property>
    <name>dfs.replication</name>
    <value>2</value>
    <description>Default block replication.
    The actual number of replications can be specified when the file is created.
    The default is used if replication is not specified in create time.
    </description>
  </property>
  <property>
    <name>dfs.namenode.rpc-bind-host</name>
    <value>0.0.0.0</value>
  </property>
  <property>
    <name>dfs.datanode.address</name>
    <value>192.168.51.4:50010</value>
  </property>
  <property>
    <name>dfs.namenode.datanode.registration.ip-hostname-check</name>
    <value>false</value>
  </property>
  <property>
   <name>dfs.namenode.name.dir</name>
   <value>/home/hadoop/hadoop-data/hdfs/namenode</value>
   <description>Determines where on the local filesystem the DFS name node should store the name table(fsimage). If this is a comma-delimited list of directories then the name table is replicated in all of the directories, for redundancy.</description>
  </property>
  <property>
   <name>dfs.datanode.data.dir</name>
   <value>/home/hadoop/hadoop-data/hdfs/datanode</value>
   <description>Determines where on the local filesystem an DFS data node should store its blocks. If this is a comma-delimited list of directories, then data will be stored in all named directories, typically on different devices. Directories that do not exist are ignored.</description>
  </property>
</configuration>

为什么hadoop要将每个数据节点与一个甚至不存在的ip相关联？或者更重要的是，如何让节点正常工作？
更新：所有节点上的/etc/hosts文件都是相同的

192.168.51.4 hadoop-master
192.168.52.4 hadoop-data1
192.168.52.6 hadoop-data2

下面是我的文件的内容。

hadoop@hadoop-master:~$ cat /usr/local/hadoop/etc/hadoop/slaves
hadoop-master
hadoop-data1
hadoop-data2

数据节点日志：
https://gist.github.com/dwatrous/7241bb804a9be8f9303fhttpshttp://gist.github.com/dwatrus/bcd85cda23d6eca3a68bhttps://gist.github.com/dwatrous/922c4f773aded0137fa3
名称节点日志：
https://gist.github.com/dwatrous/dafaa7695698f36a5d93