In our environment (Phantom version 4.10.3.x), the HEC (HTTP Event Collector) server name that is used as an "Indexer Host" (i.e. Phantom UI field label for the HEC server for a "Distributed Splunk Enterprise Deployment" ) was changed recently. The new server name was entered into the "Indexer Host" field, "Test Connection" was successful, and "reindex" was successful. However later it was noticed that no new event data was being ingested into the Splunk Enterprise phantom* indexes. The resolution was to restart Phantom and "reindex " again for the missing events in the phantom* indexes. It is suspected that the "process" for ingesting new events into the phantom* indexes is not updated with the changes to the "Indexer Host" field until Phantom is restarted; however, the "processes" for "Test Connection" and "reindex" appeared to work without a Phantom restart. No references that a Phantom restart is required was found in the online documentation.
Does anyone have more on this issue/bug/phenomenon and/or has anyone else experienced this issue/bug/phenomenon?