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Delete partition folders in hdfs older than N days

I want to delete partition folders older than N days.

The command below gives folders that are exactly 50 days ago. I want a list of all folders that are less than 50 days old

hadoop fs -ls /data/publish/DMPD/VMCP/staging/tvmcpr_usr_prof/chgdt=`date --date '50 days ago' +\%Y-\%m-\%d`
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2 answers


You can try with solr hdfsfindtool:



hadoop jar /opt/cloudera/parcels/CDH/lib/solr/contrib/mr/search-mr-job.jar org.apache.solr.hadoop.HdfsFindTool -find /data/publish/DMPD/VMCP/staging/tvmcpr_usr_prof -mtime +50 | xargs hdfs dfs -rm -r -skipTrash
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This can be done with a bash

script



today=`date +'%s'`
hdfs dfs -ls /data/publish/DMPD/VMCP/staging/tvmcpr_usr_prof/ | 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 [ ${difference} -lt 50 ]; then
    echo "${filepath}"
fi
done
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