Batcher needs to be manually restarted when the following errors happen. When Kafka faces downtime, it is seen some batcher get stuck with the following errors. They need a restart from recovering from this.
[sarama] 2021/09/20 06:41:38 consumer/broker/2 abandoned subscription to ts.db.table/0 because consuming was taking too long
They should recover without restarts, or fatal and restart on its own.