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Memory Requirements
The Ambari host should have at least 1 GB RAM, with 500 MB free. To check available memory on any host, run: free - m If you plan to install the Ambari Metrics Service (AMS... -
1. Getting Ready
This section describes the information and materials you should get ready to install a cluster using Ambari. Ambari provides an end-to-end management and monitoring solution for y... -
3.2 Write Markdown in the RStudio visual editor
If you are not familiar with Markdown yet, or do not prefer writing Markdown code, RStudio v1.4 has included an experimental visual editor for Markdown documents, which feels simi... -
Configuring iptables
RHEL/CentOS/Oracle/Amazon Linux SLES Ubuntu Debian For Ambari to communicate during setup with the hosts it deploys to and manages, certain ports must be open and available. T... -
KYUUBI
KYUUBI数据源 使用HiveServer2 是否原生支持 KYUUBI数据源 使用HiveServer2 数据源：选择 KYUUBI 数据源名称：输入数据源的名称 描述：输入数据源的描述 IP 主机名：输入连接 KYUUBI 的 IP 端口：输入连接 KYUUBI 的端口 用户名：设置连接 KYUUBI 的用户名 密码：设置连接 KYU... -
Configure Kyuubi to use LDAP Authentication
Enable LDAP Authentication Kyuubi can be configured to enable frontend LDAP authentication for clients, such as the BeeLine, or the JDBC and ODBC drivers. At present, only simple... -
jdoquery DTD/XSD
JDO defines XML MetaData in jdo files as well as orm files, but also specifies that named queries can be defined in jdoquery files. As always with XML, the metadata must match t... -
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... -
Relation
countBy difference differenceWith unionWith union gt gte intersection lt lte max min propEq sortBy countBy (a → String) → [a] → {*} Parameters fnThe function u... -
String
match split trim replace toLower toUpper test toString match RegExp → String → [String | Undefined] Parameters rxA regular expression. strThe string to match against...
