The default data size limit can be increased through the following workflow:
1. Export the current GeoEvent Configuration, Site > Configuration Store > Export Configuration.
2. Stop the ArcGIS GeoEvent Windows Service.
3. Open the ArcGIS GeoEvent configuration file located in,'C:\Program Files\ArcGIS\Server\GeoEvent\etc\ArcGISGeoEvent.cfg' in a Text editor.
4. Replace the following line:
wrapper.java.additional.16=-Djute.maxbuffer=0xA00000
WITH
wrapper.java.additional.16=-Djute.maxBuffer=0xA00000
5. Navigate to C:\ProgramData\Esri\GeoEvent.
6. Delete the ‘zookeeper’ folder.
7. Start the ArcGIS GeoEvent Windows Service.
8. Import the GeoEvent Configuration.