Hello everyone.
I have experienced a very strange situation
about HDFS operation.
I have a 1 master and 10 slaves cluster
environment.
When I put a file A into HDFS with
dfs.replication=10, I can see every block of the file A is replicated in every
node.
So, it is reasonable to think tha
Hello,
I have a question about using the cached data in memory via centralized cache
management.
I cached
the data what I want to use through the CLI (hdfs cacheadmin
-addDirectives ...).
Then, when
I write my mapreduce application, how can I read the cached data in
memory?
Here
is the sour
Subject : Re: About debugging HDFS and MapReduce...
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What version of Hadoop are you using ?
Thanks
On Oct 6, 2013, at 8:56 PM, 남윤민
// Yoonmin Nam
Hello!!
My name is Yoonmin Nam from South Korea.Currently, I am trying to debug
namenode and datanode using eclipse and fully-distributed environemnt in my
lab. (1 master and 10 nodes)However, I can do debug but not fully, just some
portion of source code of hadoop.This means I cannot see how so
