CDH4 is the Cloudera Distribution of Hadoop, release 4. It includes Hadoop and nine other open source projects from the Hadoop ecosystem. It is comparable to HDP (the Horton Data Platform).

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hadoop hbase environment variables

I tried to setup a 4 node Hadoop cluster using CDH4.7. The cluster is up and running fine and when I submit a word count MR job it completed successfully but when I am submitting an MR job to insert ...
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CDH3 rebalancer without Cloudera Manager

We recently added new nodes to the cluster and I want to run the re-balancer to distribute the data among these nodes. We are using CDH3 and whole system is cheffed - I am not even sure if there is ...
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Setting up permissions in Cloudera Hadoop 4 (CDH4)

I would like to set up HDFS permissions in CDH4, with the following requirements: Everyone can read everything from all HDFS directories Each user can only write to his user directory on HDFS Except ...
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674 views

Cloudera VM Image CDH4 for laptop without hardware virtualization [closed]

My laptop does not have hardware virtualization(no Intel VT-X flag in BIOS). So, I cannot use the Cloudera Image for Hadoop in VirtualBox as it is 64-bit. Reference: ...
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284 views

Implications of Multiple JobTracker nodes in a Hadoop cluster?

I get the impression that one can, potentially, have multiple JobTracker nodes configured to share the same set of MR (TaskTracker) nodes. I know that, conventionally, all the nodes in a Hadoop ...
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Hadoop CDH4 Evaluation: Which Ubuntu would be preferred? Lucid or Precise [closed]

I'm setting up a CDH4 in AWS for evaluation (we already have a CHD3 running on Ubuntu Lucid) and I'd like advice regarding any known gotchyas that I'd be likely to encounter if running it on Lucid vs. ...