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  • 查看镜像文件

    1、查看镜像文件

    [xiaoqiu@s150 /home/xiaoqiu/hadoop_tmp/dfs/name/current]$ ls -h |grep fsimage
    fsimage_0000000000000000000
    fsimage_0000000000000000000.md5
    fsimage_0000000000000000966
    fsimage_0000000000000000966.md5
    

    [xiaoqiu@s150 /home/xiaoqiu/hadoop_tmp/dfs/name/current]$ hdfs oiv -i /home/xiaoqiu/hadoop_tmp/dfs/name/current/fsimage_0000000000000000966 -o a.xml -p XML
    
    [xiaoqiu@s150 /home/xiaoqiu/hadoop_tmp/dfs/name/current]$ ll |grep .xml
    -rw-rw-r--. 1 xiaoqiu xiaoqiu    4438 Dec 28 19:30 a.xml
    [xiaoqiu@s150 /home/xiaoqiu/hadoop_tmp/dfs/name/current]$ cat a.xml
    

    2、查看编辑日志

    [xiaoqiu@s150 /home/xiaoqiu/hadoop_tmp/dfs/name/current]$ hdfs oev -i /home/xiaoqiu/hadoop_tmp/dfs/name/current/edits_0000000000000000967-0000000000000000967 -o b.xml -p XML
    [xiaoqiu@s150 /home/xiaoqiu/hadoop_tmp/dfs/name/current]$ ll |grep b.xml
    -rw-rw-r--. 1 xiaoqiu xiaoqiu     204 Dec 28 20:32 b.xml
    [xiaoqiu@s150 /home/xiaoqiu/hadoop_tmp/dfs/name/current]$ cat b.xml
    

    3、启用滚动编辑日志

     hdfs dfsadmin -rollEdits



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  • 原文地址:https://www.cnblogs.com/flyingcr/p/10327009.html
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