@Manoj Menon You can use to determine which files are having problems. hdfs fsck /
hdfs fsck hdfs://ip.or.host:50070/ | egrep -v '^\.+$' | grep -v replica | grep -v Replica More details can be found on the following link to see how to deal with "Corrupted Blocks". https://www.centoshowtos.org/hadoop/fix-corrupt-blocks-on-hdfs/ https://stackoverflow.com/questions/19205057/how-to-fix-corrupt-hdfs-files https://community.hortonworks.com/questions/50598/how-to-remove-corrupted-blocks-from-hdfs.html . Similarly if you see some "Under replicated Blocks" as well on your cluster then you can refer to the approach mentioned in the following HCC article to deal with it: https://community.hortonworks.com/articles/4427/fix-under-replicated-blocks-in-hdfs-manually.html .
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