Open-RMBT-Statistics

Open-RMBT is an open source, multi-threaded bandwidth measurement system.

It consists of the following components:

• Web site
• JavaScript client
• Android client
• iOS client
• Measurement server
• QoS measurement server
• Control server
• Statistics server (in this repository)
• Map server

Open-RMBT is released under the Apache License, Version 2.0. It was developed by the Austrian Regulatory Authority for Broadcasting and Telecommunications (RTR-GmbH).

Related material

• RMBT specification
• RTR-NetTest/open-rmbt - Orignal repository, today mainly contains Map and QoS-server
• RTR-NetTest/rmbt-server - Test Server for conducting measurements based on the RMBT protocol
• RTR-NetTest/rmbtws - JavaScript client for conducting RMBT-based speed measurements
• RTR-NetTest/open-rmbt-control - Control server
• RTR-NetTest/open-rmbt-ios - iOS app
• RTR-NetTest/open-rmbt-android - Android app
• RTR-NetTest/rtr-nettest/open-rmbt-website - Web site

System requirements for the Statistics-Server

• single (virtual) server with sufficient RAM and CPU performance

• Base system Debian 11 or newer (or similar)

• At least a single static public IPv4 address (IPv6 support recommended)

  NOTE: other Linux distributions can also be used, but commands and package names may be different

Installation

1. Setup IP/DNS/hostname
2. firewall (e.g. iptables)
3. Install git
4. Install and configure sshd
5. Install and configure ntp
6. dpkg-reconfigure locales (database requires en_US.UTF-8)
7. dpkg-reconfigure tzdata

Database Server

The statistics server uses a Postgresql database. In a production environment it is recommended to use a local replica of the master database, but for testing purposes the main database can be used directly. See RTR-NetTest/open-rmbt for basic setup instructions.

Statistics Server

Install components

• Apache Tomcat 10 or higher
• nginx; configure nginx to forward requests to localhost:8080
• letsencrypt; create certificate
• openjdk-17-jre (or other jdk distribution)
• redis

Build the RMBTStatisticServer.war archive

mvn compile war:war

Alternative: Get WAR using Github action

The WAR build action produces a WAR file that can be used on a server. This only applies to the feature/war branch.

Configure Tomcat

Configure catalina.properties

Edit /etc/tomcat9/catalina.properties, add the end add:

spring.profiles.active=prod

This activates the production spring profile.

Configure context.xml

Edit /etc/tomcat9/context.xml, add to <Context>:

<!-- Control/Statistic - Identification used in /version endpoint -->
<Parameter name="HOST_ID" value="[host_id]" override="false"/>

<!-- Statistic - database connection -->
<Parameter name="STATISTIC_DB_USER" value="rmbt" override="false"/>
<Parameter name="STATISTIC_DB_PASSWORD" value="[change_me]" override="false"/>
<Parameter name="STATISTIC_DB_HOST" value="localhost" override="false"/>
<Parameter name="STATISTIC_DB_PORT" value="5432" override="false"/>
<Parameter name="STATISTIC_DB_NAME" value="rmbt" override="false"/>

<!-- Statistic redis connection -->
<Parameter name="STATISTIC_REDIS_HOST" value="localhost" override="false"/>
<Parameter name="STATISTIC_REDIS_PORT" value="6379" override="false"/>

<!-- Statistic - logback configuration -->
<Parameter name="LOGGING_CONFIG_FILE_STATISTIC" value="/etc/tomcat9/logback-statistic.xml" override="false"/>

Substitute parts with []. [host_id] is a short string which identifies the host, eg. "host1." Make sure the file context.xml is owned bytomcat.

Configure Logstash

The basic logging configuration is to send log to console. In newer Debian installations systemd is configured to redirect that output to systemd log. Older systems send log to /var/log/tomcat9/catalina.out.

The following configuration sends log to console:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration>
<configuration>
  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
    <encoder>
      <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
    </encoder>
  </appender>
<!-- log levels: TRACE, DEBUG, INFO, WARN, ERROR -->
  <root level="INFO">
    <appender-ref ref="STDOUT" />
  </root>
</configuration>

Alternatively, log can be sent to Logstash on a remote ELK instance

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration>
<configuration scan="true">
    <include resource="org/springframework/boot/logging/logback/defaults.xml"/>

    <appender name="logstash" class="net.logstash.logback.appender.LogstashTcpSocketAppender">
        <param name="Encoding" value="UTF-8"/>
<!-- define remote logging  host here -->
        <remoteHost>elk.example.com</remoteHost>
        <port>5000</port>
        <encoder class="net.logstash.logback.encoder.LogstashEncoder">
<!-- add custom fields to identify server and host -->
            <customFields>{"app_name":"statistic-service", "host":"[host_id]"}</customFields>
        </encoder>
    </appender>
<!-- log levels: TRACE, DEBUG, INFO, WARN, ERROR -->
    <root level="INFO">
        <appender-ref ref="logstash"/>
    </root>
</configuration>

Again, make sure the file etc/tomcat9/logback-statistic.xml is owned bytomcat.

Install and configure PDF export

Weasyprint is required for PDF export.

Install:

• python3
• python3-pip
• libpango1.0-0 and then run pip3 install weasyprint