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Fehler im Commit-Verhalten korrigiert: Bei Logik-Fehler, kein Commit
[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
eef0d00
..
d319295
100644
(file)
--- a/
src/main/java/de/juplo/kafka/ApplicationRebalanceListener.java
+++ b/
src/main/java/de/juplo/kafka/ApplicationRebalanceListener.java
@@
-3,7
+3,6
@@
package de.juplo.kafka;
import lombok.RequiredArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.kafka.clients.consumer.Consumer;
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 java.util.*;
import org.apache.kafka.common.TopicPartition;
import java.util.*;
@@
-11,7
+10,7
@@
import java.util.*;
@RequiredArgsConstructor
@Slf4j
@RequiredArgsConstructor
@Slf4j
-public class ApplicationRebalanceListener implements ConsumerRebalanceListener
+public class ApplicationRebalanceListener implements Co
mmittingCo
nsumerRebalanceListener
{
private final ApplicationRecordHandler recordHandler;
private final AdderResults adderResults;
{
private final ApplicationRecordHandler recordHandler;
private final AdderResults adderResults;
@@
-21,6
+20,8
@@
public class ApplicationRebalanceListener implements ConsumerRebalanceListener
private final Set<Integer> partitions = new HashSet<>();
private final Set<Integer> partitions = new HashSet<>();
+ private boolean commitsEnabled = true;
+
@Override
public void onPartitionsAssigned(Collection<TopicPartition> partitions)
{
@Override
public void onPartitionsAssigned(Collection<TopicPartition> partitions)
{
@@
-50,14
+51,17
@@
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)
+ if (commitsEnabled)
{
{
- log.warn("{} - Could not commit offsets in onPartitionsRevoked():", id, e);
+ 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 ->
}
partitions.forEach(tp ->
@@
-79,4
+83,16
@@
public class ApplicationRebalanceListener implements ConsumerRebalanceListener
stateRepository.save(new StateDocument(partition, state, results));
});
}
stateRepository.save(new StateDocument(partition, state, results));
});
}
+
+ @Override
+ public void enableCommits()
+ {
+ commitsEnabled = true;
+ }
+
+ @Override
+ public void disableCommits()
+ {
+ commitsEnabled = false;
+ }
}
}