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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... -
Prepare the Environment
To deploy your Hortonworks stack using Ambari, you need to prepare your deployment environment: Set Up Password-less SSH Set Up Service User Accounts Enable NTP on the Cluster... -
Kyuubi v.s. HiveServer2
Introduction Hive on Spark Differences Between Kyuubi and HiveServer2 Performance References Introduction HiveServer2 is a service that enables clients to execute Hive QL qu... -
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... -
Cassandra
Description Key features Options host [string] keyspace [string] table [String] username [string] password [string] datacenter [String] consistency_level [String] fields [... -
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... -
String
match split trim replace toLower toUpper test toString match RegExp → String → [String | Undefined] Parameters rxA regular expression. strThe string to match against... -
Kafka source compatible kafka-connect-json
How To Use Kafka Sink Mysql Seatunnel connector kafka supports parsing data extracted through kafka connect source, especially data extracted from kafka connect jdbc and kafka c... -
Accumulo Shell
Basic Administration Table Maintenance User Administration Accumulo provides a simple shell that can be used to examine the contents and configuration settings of tables, inser... -
Types of Classes
JDO provides a means of transparent persistence of objects of user defined classes. With JDO there are actually 3 types of classes. Persistence Capable classes are classes whose...
