Looks like the data was removed from hdfs but no drop partition query was executed on hive side. The data being displayed from 'show partitions <table_name>' command retrieves data from hive metastore db, which has the information on table partition but not the real data, which is stored in hdfs. About the data missing from hdfs, it might be worth checking the hdfs-audit.log to trace the lifecycle of the directory/file
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