Direct Installation

The direct installation refers to downloading and installing packages directly in your own server(s)

Requirements

OS: RedHat or compatible (CentOS, Oracle Linux, Fedora), Debian or compatible (Ubuntu)
Java: JDK 8/11 (OpenJDK, Oracle, Temurin or other JDK compatible distributions)
Scala: 2.12
Memory: 16GB+
Metadata DB: PostgreSQL 12+
Spark: 3.1.x (for local mode it’s embedded)
YARN+HDFS: Hadoop 3.2+
Hadoop Tools: Hive: 2.1+, Impala
Ports open:
- Flexter metadata - ports to a PostgreSQL instance storing Flexter’s metastore. Not required if installed on the same machine as the Flexter processor. Usually 5432 (default).
- Flexter UI
  - backend (default: 8081)
  - frontend (default: 9091)
- Spark
  - Master - Web UI and job submissions (defaults: 8080, 7077)
  - Worker - WebUI (defaults: 7071)
  - Application WebUI/driver (default: 4040 and subsequent if multiple)
  - History Server (default: 18080)
- HDFS (as per existing cluster configuration)
  - master node(s) (default: 8020/9000)
  - slave nodes(s) (default: 50010)
- Hive (if used)
  - metastore (as per existing metastore configuration)

The Flexter download process.

The flexter database setup based on Official PostgreSQL documentation

The flexter post-installation steps

The Flexter upgrade process.