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When you install OpenNMS we have in our telemetryd-configuration.xml the Multi-UDP-9999 enabled by default. To enable flow processing there are other components, such as Elasticsearch for persistence and Grafana with Helm required. When having it enabled by default we run in problems if someone just sets OpenNMS as flow collector, cause it tries to process it but can't persist or handle it correctly. The administrator should only enable flows processing and reception when at least the Elasticsearch persistence is configured.
When you install OpenNMS we have in our telemetryd-configuration.xml the
Multi-UDP-9999enabled by default. To enable flow processing there are other components, such as Elasticsearch for persistence and Grafana with Helm required. When having it enabled by default we run in problems if someone just sets OpenNMS as flow collector, cause it tries to process it but can't persist or handle it correctly. The administrator should only enable flows processing and reception when at least the Elasticsearch persistence is configured.