conf/hdfs-site.xml restart dfs. I believe it should be sufficient to restart the namenode only, but others can confirm. -Ayon
________________________________ From: Rita <rmorgan...@gmail.com> To: hdfs-user@hadoop.apache.org Sent: Thu, February 3, 2011 4:35:09 AM Subject: changing the block size Currently I am using the default block size of 64MB. I would like to change it for my cluster to 256 megabytes since I deal with large files (over 2GB). What is the best way to do this? What file do I have to make the change on? Does it have to be applied on the namenode or each individual data nodes? What has to get restarted, namenode, datanode, or both? -- --- Get your facts first, then you can distort them as you please.--