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Combining Async and Sync Offsets#

Sumit Rawal answered on June 1, 2023 Popularity 1/10 Helpfulness 1/10

answer Combining Async and Sync Offsets#

Combining Async and Sync Offsets#

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When a consumer deliberately exits after making the last commit, we know a rebalance will follow. In this case, we can combine synchronous and asynchronous commits together. Consider the following excerpt:

  try {
      while (true) {
          Duration oneSecond = Duration.ofMillis(1000);
          System.out.println("Consumer polling for data...");
          ConsumerRecords<String, String> records = consumer.poll(oneSecond);
          for (ConsumerRecord<String, String> record : records) {
              /**
                * Process records
                */
          }

          // Async commit without callback
          consumer.commitAsync();

      }
  } catch (Exception e) {
      // log exception
  } finally {

      try {
          // Initiate a synchronous commit since this is the last commit
          // before the consumer exits. The synchronous commit will retry
          // untill success or fail in case of an unrecoverable error.
          consumer.commitSync();
      } finally {
          consumer.close();
      }
  }
  }

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: java sync

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Contributed on Jun 01 2023

Sumit Rawal

0 Answers Avg Quality 2/10

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