CDH4 VM

[#1]

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]

(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?

[#3]

Hi,

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