Hello, I checked the ML archives and the Wiki, as well as the HDFS user guide, but could not find information about how to change block size of an existing HDFS.
After running fsck I can see that my avg. block size is 12706144 B (cca 12MB), and that's a lot smaller than what I have configured: dfs.block.size=67108864 B Is the difference between the configured block size and actual (avg) block size results effectively wasted space? If so, is there a way to change the DFS block size and have Hadoop shrink all the existing blocks? I am OK with not running any jobs on the cluster for a day or two if I can do something to free up the wasted disk space. Thanks, Otis -- Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch
