業務背景

約定五天前的HDFS數據為過期版本號數據。寫一個腳本自己主動刪除過期版本號數據

$ hadoop fs -ls /user/pms/workspace/ouyangyewei/data Found 9 items drwxr-xr-x - pms pms 0 2015-08-11 17:03 /user/pms/workspace/ouyangyewei/data/2015-08-01 drwxr-xr-x - pms pms 0 2015-08-11 17:03 /user/pms/workspace/ouyangyewei/data/2015-08-02 drwxr-xr-x - pms pms 0 2015-08-11 17:03 /user/pms/workspace/ouyangyewei/data/2015-08-03 drwxr-xr-x - pms pms 0 2015-08-11 17:03 /user/pms/workspace/ouyangyewei/data/2015-08-04 drwxr-xr-x - pms pms 0 2015-08-11 17:03 /user/pms/workspace/ouyangyewei/data/2015-08-05 drwxr-xr-x - pms pms 0 2015-08-11 17:03 /user/pms/workspace/ouyangyewei/data/2015-08-06 drwxr-xr-x - pms pms 0 2015-08-11 17:03 /user/pms/workspace/ouyangyewei/data/2015-08-07 drwxr-xr-x - pms pms 0 2015-08-11 17:03 /user/pms/workspace/ouyangyewei/data/2015-08-08 drwxr-xr-x - pms pms 0 2015-08-11 17:03 /user/pms/workspace/ouyangyewei/data/2015-08-09

腳本實現

# --------------------------------------------------------- # # 刪除歷史版本號（五天前的為過期版本號數據） # # ---------------------------------------------------------old_version=$(hadoop fs -ls /user/pms/workspace/ouyangyewei/data | awk 'BEGIN{ five_days_ago=strftime("%F", systime()-5*24*3600) }{ split($8,arr,"/"); if(arr[7]<five_days_ago){printf "%s\n", $8} }') arr=(${old_version// / }) for version in ${arr[@]} do hadoop fs -rmr $version done

運行以后

$ hadoop fs -ls /user/pms/workspace/ouyangyewei/data Found 4 items drwxr-xr-x - pms pms 0 2015-08-11 17:03 /user/pms/workspace/ouyangyewei/data/2015-08-06 drwxr-xr-x - pms pms 0 2015-08-11 17:03 /user/pms/workspace/ouyangyewei/data/2015-08-07 drwxr-xr-x - pms pms 0 2015-08-11 17:03 /user/pms/workspace/ouyangyewei/data/2015-08-08 drwxr-xr-x - pms pms 0 2015-08-11 17:03 /user/pms/workspace/ouyangyewei/data/2015-08-09

轉載于:https://www.cnblogs.com/jzdwajue/p/7218361.html

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