If I have 2 DataNode DN1 and DN2 with two directories storing the data i.e. ‘/DN1’ & ‘/DN2’. So, can I move the blocks from one DN to another DN and update the meta.
Currently Hadoop does not automatically do this. You have to do this manually:
Just try the following command:
hadoop fs -rm ...READ MORE
The distributed copy command, distcp, is a ...READ MORE
You can add some more memory by ...READ MORE
In this case what you can do ...READ MORE
Firstly you need to understand the concept ...READ MORE
org.apache.hadoop.mapred is the Old API
org.apache.hadoop.mapreduce is the ...READ MORE
put <localSrc> <dest>
copyFr ...READ MORE
In your case there is no difference ...READ MORE
I would suggest you go through this ...READ MORE
Well, what you can do is use ...READ MORE
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