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Rückbau auf einen Consumer, der in `onPartitionsRevoked()` immer committed
[demos/kafka/training]
/
src
/
main
/
java
/
de
/
juplo
/
kafka
/
ApplicationRebalanceListener.java
diff --git
a/src/main/java/de/juplo/kafka/ApplicationRebalanceListener.java
b/src/main/java/de/juplo/kafka/ApplicationRebalanceListener.java
index
6d3850f
..
eef0d00
100644
(file)
--- a/
src/main/java/de/juplo/kafka/ApplicationRebalanceListener.java
+++ b/
src/main/java/de/juplo/kafka/ApplicationRebalanceListener.java
@@
-2,12
+2,10
@@
package de.juplo.kafka;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
+import org.apache.kafka.clients.consumer.Consumer;
import org.apache.kafka.clients.consumer.ConsumerRebalanceListener;
import org.apache.kafka.common.TopicPartition;
import org.apache.kafka.clients.consumer.ConsumerRebalanceListener;
import org.apache.kafka.common.TopicPartition;
-import java.time.Clock;
-import java.time.Duration;
-import java.time.Instant;
import java.util.*;
import java.util.*;
@@
-19,6
+17,7
@@
public class ApplicationRebalanceListener implements ConsumerRebalanceListener
private final AdderResults adderResults;
private final StateRepository stateRepository;
private final String id;
private final AdderResults adderResults;
private final StateRepository stateRepository;
private final String id;
+ private final Consumer consumer;
private final Set<Integer> partitions = new HashSet<>();
private final Set<Integer> partitions = new HashSet<>();
@@
-51,6
+50,16
@@
public class ApplicationRebalanceListener implements ConsumerRebalanceListener
@Override
public void onPartitionsRevoked(Collection<TopicPartition> partitions)
{
@Override
public void onPartitionsRevoked(Collection<TopicPartition> partitions)
{
+ log.info("{} - Commiting offsets for all previously assigned partitions", id);
+ try
+ {
+ consumer.commitSync();
+ }
+ catch (Exception e)
+ {
+ log.warn("{} - Could not commit offsets in onPartitionsRevoked():", id, e);
+ }
+
partitions.forEach(tp ->
{
Integer partition = tp.partition();
partitions.forEach(tp ->
{
Integer partition = tp.partition();