Dippatel98 commented on code in PR #32456:
URL: https://github.com/apache/beam/pull/32456#discussion_r1765303134
##########
sdks/java/io/kafka/src/main/java/org/apache/beam/sdk/io/kafka/ReadFromKafkaDoFn.java:
##########
@@ -460,7 +460,25 @@ public ProcessContinuation processElement(
}
return ProcessContinuation.resume();
}
+ long skippedRecords = 0L;
+ final Stopwatch sw = Stopwatch.createStarted();
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().toMillis() > 10000L) {
Review Comment:
Oh! I didn't see that method. Changed this.
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