在HDFS上删除超过10天的文件 [英] Delete files older than 10days on HDFS
本文介绍了在HDFS上删除超过10天的文件的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
在Linux中,我会使用:
find / path / to / directory / -type f -mtime +10 -name'* .txt'-execdir rm - {} \;
有没有办法在HDFS上做到这一点? (根据文件创建日期删除)解决方案1:使用多个命令作为由daemon12回答
hdfs dfs -ls / file / Path | tr -s| cut -d''-f6-8 | grep^ [0-9]| awk'BEGIN {MIN = 14400; LAST = 60 * MIN; 日期+%s| getline NOW} {cmd =date -d'\''$ 1$ 2'\''+%s; cmd | getline WHEN; DIFF = NOW-WHEN;如果(DIFF> LAST){打印删除:$ 3;系统(hdfs dfs -rm -r$ 3)}}'
解决方案2:
使用Shell脚本
today =`date +'%s``
hdfs dfs -ls / file / Path / | grep^ d|而读线;
dir_date = $(echo $ {line} | awk'{print $ 6}')
difference = $((($ {today} - $(date -d $ {dir_date} +%s) ))/(24 * 60 * 60)))
filePath = $(echo $ {line} | awk'{print $ 8}')
if [$ {difference} -gt 10];那么
hdfs dfs -rm -r $ filePath
fi
完成
Is there a way to delete files older than 10 days on HDFS?
In Linux I would use:
find /path/to/directory/ -type f -mtime +10 -name '*.txt' -execdir rm -- {} \;
Is there a way to do this on HDFS? (Deletion to be done based on file creation date)
解决方案
Solution 1: Using multiple commands as answered by daemon12
hdfs dfs -ls /file/Path | tr -s " " | cut -d' ' -f6-8 | grep "^[0-9]" | awk 'BEGIN{ MIN=14400; LAST=60*MIN; "date +%s" | getline NOW } { cmd="date -d'\''"$1" "$2"'\'' +%s"; cmd | getline WHEN; DIFF=NOW-WHEN; if(DIFF > LAST){ print "Deleting: "$3; system("hdfs dfs -rm -r "$3) }}'
Solution 2: Using Shell script
today=`date +'%s'`
hdfs dfs -ls /file/Path/ | grep "^d" | while read line ; do
dir_date=$(echo ${line} | awk '{print $6}')
difference=$(( ( ${today} - $(date -d ${dir_date} +%s) ) / ( 24*60*60 ) ))
filePath=$(echo ${line} | awk '{print $8}')
if [ ${difference} -gt 10 ]; then
hdfs dfs -rm -r $filePath
fi
done
这篇关于在HDFS上删除超过10天的文件的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文