How Norway's welfare system moved 400GB of daily logs to managed OpenSearch without a service interruption
The Norwegian Labor and Welfare Administration (NAV) pays out 33% of Norway’s state budget. A thousand developers rely on its central logging infrastructure every day. At OpenSearchCon Europe 2026, platform engineer Hans Kristian Flaatten and Aiven Product Director Dmitry Kan walked through how they swapped out the underlying search engine while the lights stayed on – and what happened when a last-minute integration problem turned up three days before Christmas.