概述
grep -ri Exception得到如下信息:
/home/appleyuchi/bigdata/hadoop-3.2.1/logs/hadoop-appleyuchi-secondarynamenode-Desktop.log
2020-05-17 21:23:32,070 ERROR org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode: Exception in doCheckpoint
解决方案：
①去core-site.xml中获取hadoop.tmp.dir的取值
<property>
<name>hadoop.tmp.dir</name>
<value>file:/home/appleyuchi/bigdata/hadoop_tmp</value>
<description>Abase for other temporary directories.</description>
</property>
②rm -r /home/appleyuchi/bigdata/hadoop_tmp
③重启hadoop集群
该报错消失
最后
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![[hadoop3.1.2]无法启动namenode.Failed to start namenode.java.net.BindException: Port in use: hadoop1:9871](/uploads/reation/bcimg3.png)
![[hbase] 重启后hmaster消失](/uploads/reation/bcimg6.png)
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