如何在flink中设置kafka commitOffset？

Question

I already set committed offsetd by:

properties.setProperty("auto.commit.interval.ms", "1000");
properties.setProperty("auto.commit.enable", "true");
properties.setProperty("enable.auto.commit", "true");

FlinkKafkaConsumer08<MobilePageEvent> kafkaConsumer =
            new FlinkKafkaConsumer08<>(
                    "mobile-event.page-resource", SCHEMA, properties);

But in the web UI, I get invalid committed offsets:

Answer 1

After enabling check pointing, it works now:

StreamExecutionEnvironment environment =
            StreamExecutionEnvironment.getExecutionEnvironment();

environment.enableCheckpointing(5000);