HDFS_under_replicated_blocks

摘要

Under replicated blocks:指的是副本数少于指定副本数的block数量

Blocks with corrupt replicas: 指的是存在损坏副本的block的数据

Missing blocks:丢失block数量

for hdfsfile in `sudo -u hdfs hdfs fsck / | grep 'Under replicated' | awk -F':' '{print $1}'`; do echo "Fixing $hdfsfile :" ;  sudo hdfs hadoop fs -setrep 3 $hdfsfile; done