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CDH4 VM

CDH4 VM

New Contributor
I've got few problems dealing with cloudera CDH4 vm.
 
1. Name node frequently goes into safe mode? Any reasons for this. I bring back to normal but problem persists quite frequently.
 
2. Says 100% DFS used. How to improve DFS memory? Whats the difference between Heap Memory and Non-Heap Memory in DFS. 
 
3. WARNING : There are 132 missing blocks. Please check the logs or run fsck in order to identify the missing blocks. 
 
4.Unable to access DFS , HTTP ERROR 500
2 REPLIES 2

Re: CDH4 VM

Master Guru
(1) - A low disk space (<1GB) will cause this. NameNode self-enters safemode to prevent itself from not persisting some change cause of lack of local space.

(2) - 100% DFS used indicates all your DataNodes' disks are full. It has nothing to do with the NameNode's JVM heap memory.

(3) - This can be caused by down or missing datanodes, or perhaps an omission of certain previously-present datanode data directories.

(4) - Please add more info, what do you do that leads to this error? What page do you visit?

Re: CDH5 VM

New Contributor

Hi,

Is there a way I can install cloudera VM for CDH 5.0 and practice Hadoop skills?