Hi, @user2024 I don't the canary file is gonna cause this issue, the blocks that are corrupt/missing are now lost and cannot be recovered, you can manually delete those blocks by identifying them using the below command and run the hdfs balancer on HDFS so that NN will balance the new blocks across the cluster. # hdfs fsck -list-corruptfileblocks You can also refer to the below article. https://stackoverflow.com/questions/19205057/how-to-fix-corrupt-hdfs-files ... View more