The latest version of the Streaming Updater Producer has a bug that prevents Flink from starting.
Relevant part of stack trace
at org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducer.<init>(FlinkKafkaProducer.java:571) at org.wikidata.query.rdf.updater.OutputStreams.prepareSideOutputStream(OutputStreams.scala:63) at org.wikidata.query.rdf.updater.OutputStreams.lateEventsOutput(OutputStreams.scala:37) at org.wikidata.query.rdf.updater.OutputStreams.pipelineSinks(OutputStreams.scala:56) at org.wikidata.query.rdf.updater.UpdaterJob$.main(UpdaterJob.scala:27) at org.wikidata.query.rdf.updater.UpdaterJob.main(UpdaterJob.scala)
This is a blocker to deployment of the streaming updater