Hi All,

 

Just wanted to know, what is the maximum and practical dfs.block.size used in production/test clusters.

 

  Current default value is 128MB and it can support upto 128TB ( Yup, right. It’s just a configuration value though)

   I have seen clusters using upto 1G block size for big files.

 

   Is there anyone using >2GB for block size?

 

  This is just to check, whether any compatibility issue arises if we reduce the max supported blocksize to 32GB ( to be safer side ).

 

-vinay