C0urante commented on a change in pull request #11775:
URL: https://github.com/apache/kafka/pull/11775#discussion_r820935451
##########
File path:
connect/runtime/src/main/java/org/apache/kafka/connect/runtime/distributed/DistributedConfig.java
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@@ -192,6 +197,33 @@
public static final String INTER_WORKER_VERIFICATION_ALGORITHMS_DOC = "A
list of permitted algorithms for verifying internal requests";
public static final List<String>
INTER_WORKER_VERIFICATION_ALGORITHMS_DEFAULT =
Collections.singletonList(INTER_WORKER_SIGNATURE_ALGORITHM_DEFAULT);
+ private enum ExactlyOnceSourceSupport {
+ DISABLED(false),
+ PREPARING(true),
+ ENABLED(true);
+
+ public final boolean usesTransactionalLeader;
+
+ ExactlyOnceSourceSupport(boolean usesTransactionalLeader) {
+ this.usesTransactionalLeader = usesTransactionalLeader;
+ }
+
+ public static ExactlyOnceSourceSupport fromProperty(String property) {
+ return
ExactlyOnceSourceSupport.valueOf(property.toUpperCase(Locale.ROOT));
+ }
+
+ @Override
+ public String toString() {
+ return name().toLowerCase(Locale.ROOT);
+ }
+ }
+
+ public static final String EXACTLY_ONCE_SOURCE_SUPPORT_CONFIG =
"exactly.once.source.support";
+ public static final String EXACTLY_ONCE_SOURCE_SUPPORT_DOC = "Whether to
enable exactly-once support for source connectors in the cluster "
+ + "by using transactions to write source records and their source
offsets, and by proactively fencing out old task generations before bringing up
new ones. "
+ + "See the exactly-once source support documentation at " /* TODO:
Add docs link */ + " for more information on this feature.";
Review comment:
Ack, done (and filed https://issues.apache.org/jira/browse/KAFKA-13709
to track).
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