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Collect Information
Before deploying a cluster, you should collect the following information: The fully qualified domain name (FQDN) of each host in your system. The Ambari Cluster Install wizard s... -
Installing MySQL
About This Task Before You Begin Steps About This Task You can install MySQL 5.5 or later. Before You Begin On the Ambari host, install the JDBC driver for MySQL, and then... -
Set Up Password-less SSH
About This Task Steps About This Task To have Ambari Server automatically install Ambari Agents on all your cluster hosts, you must set up password-less SSH connections betwee... -
4.19 Put together all code in the appendix (*)
Unless the target readers are highly interested in the computational details while they read a report, you may not want to show the source code blocks in the report. For this purp... -
4.8 Update the date automatically
If you want the date on which the Rmd document is compiled to be reflected in the output report, you can add an inline R expression to the date field in YAML, and use the Sys.Dat... -
Set Up Password-less SSH
About This Task Steps About This Task To have Ambari Server automatically install Ambari Agents on all your cluster hosts, you must set up password-less SSH connections between... -
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4.3 Access the document metadata in R code
When an Rmd document is compiled, all of its metadata in the YAML section will be stored in the list object rmarkdown::metadata . For example, rmarkdown::metadata$title gives you... -
6 LaTeX Output
For many authors, the main output of their work will be the PDF report, in which case they can utilize the powerful styling of LaTeX. In this chapter, we discuss approaches that c...
