Sorry, that's rep factor and not blocksize. I think you need to copy the files.
Sent from my iPhone
On Jun 6, 2011, at 12:09 PM, "J. Ryan Earl" <[EMAIL PROTECTED]> wrote:
> So I have a question about changing dfs.block.size in $HADOOP_HOME/conf/hdfs-site.xml. I understand that when files are created, blocksizes can be modified from default. What happens if you modify the blocksize of an existing HDFS site? Do newly created files get the default blocksize and old files remain the same? Is there a way to change the blocksize of existing files; I'm assuming you could write MapReduce job to do it, but any build in facilities?