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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2021/04/12 08:16:54 UTC
[GitHub] [pulsar] wangjialing218 commented on a change in pull request #10129: fix the default retry letter and dead letter topic name
wangjialing218 commented on a change in pull request #10129:
URL: https://github.com/apache/pulsar/pull/10129#discussion_r611418959
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File path: pulsar-client/src/main/java/org/apache/pulsar/client/impl/ConsumerBuilderImpl.java
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@@ -121,8 +117,29 @@ public ConsumerBuilderImpl(PulsarClientImpl client, Schema<T> schema) {
}
if(conf.isRetryEnable() && conf.getTopicNames().size() > 0 ) {
TopicName topicFirst = TopicName.get(conf.getTopicNames().iterator().next());
- String retryLetterTopic = topicFirst.getNamespace() + "/" + conf.getSubscriptionName() + RetryMessageUtil.RETRY_GROUP_TOPIC_SUFFIX;
- String deadLetterTopic = topicFirst.getNamespace() + "/" + conf.getSubscriptionName() + RetryMessageUtil.DLQ_GROUP_TOPIC_SUFFIX;
+ String retryLetterTopic = topicFirst + "-" + conf.getSubscriptionName() + RetryMessageUtil.RETRY_GROUP_TOPIC_SUFFIX;
+ String deadLetterTopic = topicFirst + "-" + conf.getSubscriptionName() + RetryMessageUtil.DLQ_GROUP_TOPIC_SUFFIX;
+
+ //Issue 9327: do compatibility check in case of the default retry and dead letter topic name changed
+ String oldRetryLetterTopic = topicFirst.getNamespace() + "/" + conf.getSubscriptionName() + RetryMessageUtil.RETRY_GROUP_TOPIC_SUFFIX;
+ String oldDeadLetterTopic = topicFirst.getNamespace() + "/" + conf.getSubscriptionName() + RetryMessageUtil.DLQ_GROUP_TOPIC_SUFFIX;
+ try {
+ PartitionedTopicMetadata partitionedTopicMetadata = client.getLookup().getPartitionedTopicMetadata(TopicName.get(oldRetryLetterTopic)).get();
+ if (partitionedTopicMetadata.partitions > 0) {
+ retryLetterTopic = oldRetryLetterTopic;
+ }
+ } catch (Exception e) {
+ // oldRetryLetterTopic not exist, do nothing
Review comment:
change lookup method so that it could have a retry in case of retriable error
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