生产上HDFS Block损坏恢复

最新推荐文章于 2025-05-14 08:30:14 发布

wenwen16.

最新推荐文章于 2025-05-14 08:30:14 发布

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本文链接：https://blog.youkuaiyun.com/weixin_38729343/article/details/95526893

一.文件ruozedata.md

上传:
-bash-4.2$ hdfs dfs -mkdir /blockrecover
-bash-4.2$ echo "www.ruozedata.com" > ruozedata.md

-bash-4.2$ hdfs dfs -put ruozedata.md /blockrecover
-bash-4.2$ hdfs dfs -ls /blockrecover
Found 1 items
-rw-r--r--   3 hdfs supergroup         18 2019-03-03 14:42 /blockrecover/ruozedata.md
-bash-4.2$ 

校验: 健康状态
-bash-4.2$ hdfs fsck /
Connecting to namenode via http://yws76:50070/fsck?ugi=hdfs&path=%2F
FSCK started by hdfs (auth:SIMPLE) from /192.168.0.76 for path / at Sun Mar 03 14:44:44 CST 2019
...............................................................................Status: HEALTHY
 Total size:    50194618424 B
 Total dirs:    354
 Total files:   1079
 Total symlinks:                0
 Total blocks (validated):      992 (avg. block size 50599413 B)
 Minimally replicated blocks:   992 (100.0 %)
 Over-replicated blocks:        0 (0.0 %)
 Under-replicated blocks:       0 (0