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Starting the ybrelay Service Manually ​

If the environment variable JAVA_HOME is not set, ybrelay-init returns the following warnings:

ybrelay-init
INFO: Creating System Group: ybrelay with GID: 923
INFO: Creating System User: ybrelay with UID: 923
INFO: Creating Systemd service
WARN: JAVA_HOME environment variable not set                                 
WARN: Please edit the ybrelay.config
WARN: Service will be not enabled

The following procedure explains how to set JAVA_HOME in the ybrelay.config file, then start the service manually. ybrelay cannot be started with ybrelay-init after the ybrelay.config file has been edited.

  1. Edit the /opt/ybtools/config/ybrelay.config file and set the JAVA_HOME path:
JAVA_HOME=“/opt/java/jre1.8.0_91”
  1. After editing the configuration, enable and start the service:
systemctl enable ybrelay.service
Created symlink from /etc/systemd/system/multi-user.target.wants/ybrelay.service to /etc/systemd/system/ybrelay.service
systemctl start ybrelay.service
  1. Verify that the ybrelay.service was started properly:
systemctl status ybrelay.service

  ybrelay.service - Yellowbrick Data Load Relay Service

   Loaded: loaded (/etc/systemd/system/ybrelay.service; enabled; vendor preset: disabled)

   Active: active (running) since Thu 2019-11-14 18:40:33 UTC; 4s ago

Main PID: 3196 (java)

   CGroup: /system.slice/ybrelay.service

           └─3196 /opt/java/jre1.8.0_91/bin/java -Dvisualvm.display.name=YB:Relay -Xms512m -Xmx8g -ea -classpath 
/opt/ybtools/etc:/opt/ybtools/lib/relay-service-3.2.0-SNAPSHOT.jar:/opt/ybtools/lib/client-com...
 
Nov 14 18:40:33 rhel7.localdomain systemd[1]: Started Yellowbrick Data Load Relay Service.

Nov 14 18:40:33 rhel7.localdomain ybrelay[3196]: Warning; java is not in your PATH. Using JAVA_HOME fallback: 
/opt/java/jre1.8.0_91/bin.

Parent topic:Setting Up the ybrelay Service