Github user paul-guo- commented on the issue: https://github.com/apache/incubator-hawq/pull/918 I think we could add more details on wiki to save dev's time although dev do not call these perl script often. ed, you have had the successful experience so you can share on that page. I just tried to install JSON perl module but failed, following the steps on http://www.cpan.org/modules/INSTALL.html cpan App::cpanminus cpanm Module::JSON
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