Hi all,
I have some job dependency jars that need to be pushed to all the node
managers' usercache ahead of the job that will be using it. I understand
that the job will distribute the jars at runtime, but if possible I want to
have it done beforehand.
Thanks in advance.
Regards,
Shashank
Thanks Anu, that makes sense. Assuming that works, allow me to complicate the
problem a bit further:
Say I didn't use LVM and I needed to move from 2x3 TB volumes to 6x1 TB
volumes. The problem now is that the contents of each 3TB volume won't fit on a
single 1TB volume. Is this still
Yes, it is possible, but If I were you and someone asked me to do it, I would
say No.
May I suggest that you decommission one node, let the data migrate to other
machines, replace the disks and bring that machine back in and let the cluster
heal itself.
Not as efficient as moving data around
Hi Joe,
As long as you copy all the data in the old disk without altering the paths (
ie. Structure and layout of the data dirs) and you use the same version of
datanode software then it should work.
Here is the Apache documentation that implies that this will work,
Hi all,
Each of our N datanodes has attached two 3TB disks. I want to attach new
*replacement* storage to each node, move the HDFS contents to the new
storage, and remove the old volumes. We're using Hadoop 2.7.1.
1. What is the simplest, correct way to do this? Does hot-swapping move data
from
I have a general question about Hadoop 2.8. Is it being prepped for release
anytime soon? I am awaiting HADOOP-5732 bringing SFTP support natively.
Thanks,
Ben
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Hi All,
I am new bee to Hadoop.
I installed hadoop 2.7.1 on windows 32 bit machine ( windows 7 ) for
learning purpose.
I can execute start-all.cmd successfully.
When i execute jps,i got the below output.
28544 NameNode
35728
36308 DataNode
43828 Jps
40688 NodeManager
33820 ResourceManager
My
