Can't identify hadoop home from Matlab to use Matlab Parallel Toolbox.

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Xinsong Li 2015-1-26

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/171762-can-t-identify-hadoop-home-from-matlab-to-use-matlab-parallel-toolbox

评论： Jan Cerveny 2024-4-19

I have Matlab2014b + Hadoop installed. The hadoop works well on my CentOS Linux system.

I run the mablab on that CentOS Linux machine. With the commands as follows.

It shows the folder is not a valid Hadop no matter how to change it ( I tried set the directory with hadoop 1.2.1, hadoop 2.5.2, hadoop cloudera distribution; also tried with parameter HADOOP_PREFIX,HADOOP_HOME,MATLAB_HADOOP_INSTALL ).

Anything else I can do to fix this error ?

>> setenv('MATLAB_HADOOP_INSTALL','/mnt/disk1/data/soft/hadoop-2.5.2');

>> cluster = parallel.cluster.Hadoop;

Error using parallel.cluster.Hadoop (line 107) Unable to recognize '/mnt/disk1/data/soft/hadoop-2.5.2' as a valid HADOOP installation folder. Check that this is the root of your HADOOP installation folder.

Thanks and Best Wishes. Xinsong