debezium kafka connect for sql server The db history topic or its content is fully or partially missing
时间: 2023-12-03 16:03:48 浏览: 62
If the Debezium SQL Server Connector is reporting that the database history topic or its content is missing, it is likely that the Kafka topic that the database history is stored in has been deleted or is otherwise unavailable.
To resolve this issue, you can try the following steps:
1. First, check if the Kafka topic for the Debezium SQL Server Connector's database history exists. You can use the Kafka command line utility to list the available topics:
```
bin/kafka-topics.sh --list --bootstrap-server <kafka_broker>:<kafka_port>
```
Replace `<kafka_broker>` and `<kafka_port>` with the hostname and port of your Kafka broker, respectively.
2. If the topic does not exist, you can create it manually using the Kafka command line utility:
```
bin/kafka-topics.sh --create --bootstrap-server <kafka_broker>:<kafka_port> --replication-factor 1 --partitions 1 --topic <topic_name>
```
Replace `<topic_name>` with the name of the missing topic.
3. If the topic exists but the content is missing, you can try resetting the database history. This will cause the Debezium SQL Server Connector to start capturing changes from scratch, which may take some time.
To reset the database history, you can delete the Debezium SQL Server Connector's offset and history topics, then restart the connector. The offset and history topics have the same name as the main topic, but with "-offsets" and "-history" appended to the end, respectively. You can use the Kafka command line utility to delete the topics:
```
bin/kafka-topics.sh --delete --bootstrap-server <kafka_broker>:<kafka_port> --topic <topic_name>-offsets
bin/kafka-topics.sh --delete --bootstrap-server <kafka_broker>:<kafka_port> --topic <topic_name>-history
```
Replace `<topic_name>` with the name of the missing topic.
After deleting the offset and history topics, restart the Debezium SQL Server Connector. It will recreate the topics and start capturing changes from scratch.
Please note that resetting the database history will cause the Debezium SQL Server Connector to capture all changes from the beginning, which may result in a large amount of data being captured and processed.