scwhittle commented on code in PR #34201:
URL: https://github.com/apache/beam/pull/34201#discussion_r2095586246
##########
sdks/java/io/kafka/src/main/java/org/apache/beam/sdk/io/kafka/KafkaUnboundedReader.java:
##########
@@ -173,19 +172,6 @@ public boolean advance() throws IOException {
elementsReadBySplit.inc();
ConsumerRecord<byte[], byte[]> rawRecord = pState.recordIter.next();
- long expected = pState.nextOffset;
- long offset = rawRecord.offset();
-
- if (offset < expected) { // -- (a)
- // this can happen when compression is enabled in Kafka (seems to be
fixed in 0.10)
Review Comment:
Thanks for checking!
##########
sdks/java/io/kafka/src/main/java/org/apache/beam/sdk/io/kafka/ReadFromKafkaDoFn.java:
##########
@@ -627,29 +626,6 @@ public ProcessContinuation processElement(
// Visible progress within the consumer polling timeout.
// Partially or fully claim and process records in this batch.
for (ConsumerRecord<byte[], byte[]> rawRecord : rawRecords) {
- // If the Kafka consumer returns a record with an offset that is
already processed
- // the record can be safely skipped. This is needed because there is
a possibility
- // that the seek() above fails to move the offset to the desired
position. In which
- // case poll() would return records that are already cnsumed.
- if (rawRecord.offset() < startOffset) {
- // If the start offset is not reached even after skipping the
records for 10 seconds
- // then the processing is stopped with a backoff to give the Kakfa
server some time
- // catch up.
- if (sw.elapsed().getSeconds() > 10L) {
- LOG.error(
- "The expected offset ({}) was not reached even after"
- + " skipping consumed records for 10 seconds. The offset
we could"
- + " reach was {}. The processing of this bundle will be
attempted"
- + " at a later time.",
- expectedOffset,
- rawRecord.offset());
- consumer.pause(Collections.singleton(topicPartition));
- return ProcessContinuation.resume()
-
.withResumeDelay(org.joda.time.Duration.standardSeconds(10L));
- }
- skippedRecords++;
- continue;
- }
if (skippedRecords > 0L) {
Review Comment:
can remove skippedRecords now too
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