In my understanding, the max number of files stored in the HDFS should be <MEM 
of namenode>/sizeof(inode struct).   This max number of HDFS files should be no 
smaller than max files a datanode can hold.

Please feel free to correct me because I'm just beginning learning hadoop.

On Dec 23, 2011, at 10:35 AM, bourne1900 wrote:

> Hi all,
> How many files a datanode can hold?
> In my test case, when a datanode save 14million files, the cluster can't work.
> 
> 
> 
> 
> Bourne

Adrian Liu
adri...@yahoo-inc.com



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