【Hadoop十二】HDFS常用命令

1. 修改日志文件查看器

hdfs oev -i edits_0000000000000000081-0000000000000000089 -o edits.xml
cat edits.xml

修改日志文件转储为xml格式的edits.xml文件,其中每条RECORD就是一个操作事务日志

2. fsimage查看HDFS中的块信息等

[hadoop@hadoop current]$  hdfs oiv -i fsimage_0000000000000016539  -o fsimage.fd -p FileDistribution maxSize 1000 step 5
[hadoop@hadoop current]$ cat fsimage.fd
 结果:
Processed 0 inodes.
Size	NumFiles
0	137
2097152	198
4194304	8
6291456	2
8388608	4
10485760	2
totalFiles = 351
totalDirectories = 283
totalBlocks = 214
totalSpace = 196413302
maxFileSize = 8945561
 

3. 查看HDFS上的文件和目录详细信息

hdfs oiv -i fsimage_0000000000000016539 -p XML -o fsimage.xml
cat fsimage.xml
 

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转载自bit1129.iteye.com/blog/2205437