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日志信息如下:
Initialization failed for Block pool BP-1392214458-192.168.209.201-1532143805036 (Datanode Uuid null) service to s201/192.168.209.201:8020 Datanode denied communication with namenode because hostname cannot be resolved (ip=192.168.209.129, hostname=192.168.209.129):
解决办法:
step1:查看下etc/hosts是否配置了,如果配置了请看步骤step2
step2:再namenode的机器上修改hdfs-site.xml文件,加入下面配置后,重新启动
- <property>
- <name>dfs.namenode.datanode.registration.ip-hostname-check</name>
- <value>false</value>
- </property>
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