hadoop namenode datanode啓動不起來

時間 2019-12-06

標籤 hadoop namenode datanode 啓動起來欄目 Hadoop 简体版

原文原文鏈接

啓動namenode時報如下錯誤：java

FATAL org.apache.hadoop.hdfs.server.datanode.DataNode: Initialization failed for Block pool <registering> (Datanode Uuid unassigned) service to hadoop09-linux/192.168.3.40:8020. Exiting. node

java.io.IOException: Incompatible clusterIDs in /opt/modules/hadoop-2.5.0/data/tmp/dfs/data: namenode clusterID = CID-1d0bc295-ef75-479e-98df-f6b2f51eb4bf; datanode clusterID = CID-08c24683-8fa9-48c3-a20c-61147b790a5blinux

緣由：namenode 的 clusterIDs 和 datanode的不同apache

解決方法：cd ${HADOOP_HOME}/data/tmp/dfs/name/current,查看VERSION文件裏的clusterID=CID-1d0bc295-ef75-479e-98df-f6b2f51eb4bf 覆蓋掉datanode的oop

${HADOOP_HOME}/data/tmp/dfs/data/current/VERSION裏的clusterIDui

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