do this test. do a copyFromLocal to create a new file in hdfs . check the block size of this new file. it should be 128mb if ur changes took effect.
Sent from my iPhone On Feb 6, 2011, at 2:24 PM, Rita <rmorgan...@gmail.com> wrote: > Bharath, > So, I have to restart the entire cluster? So, I need to stop the namenode and > then run start-dfs.sh ? > > Ayon, > So, what I did was decommission a node, remove all of its data (rm -rf > data.dir) and stopped the hdfs process on it. Then I made the change to > conf/hdfs-site.xml on the data node and then I restarted the datanode. I then > ran a balancer to take effect and I am still getting 64MB files instead of > 128MB. :-/ > > > > > > On Sun, Feb 6, 2011 at 2:25 PM, Bharath Mundlapudi <bharathw...@yahoo.com> > wrote: > Can you tell us, how are you verifying if its not working? > > Edit > conf/hdfs-site.xml dfs.block.size > > > And restart the cluster. > > -Bharath > > > From: Rita <rmorgan...@gmail.com> > To: hdfs-user@hadoop.apache.org > Cc: > Sent: Sunday, February 6, 2011 8:50 AM > > Subject: Re: changing the block size > > Neither one was working. > > Is there anything I can do? I always have problems like this in hdfs. It > seems even experts are guessing at the answers :-/ > > > On Thu, Feb 3, 2011 at 11:45 AM, Ayon Sinha <ayonsi...@yahoo.com> wrote: > 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.-- > > > > > -- > --- Get your facts first, then you can distort them as you please.-- > > > > > > > -- > --- Get your facts first, then you can distort them as you please.--
