![]() ![]() TutorialĪs an example, we are going to look at utilizing Debezium in Conduktor and accomplishing this with Docker. Ultimately, Debezium lets you track data changes, replicate data, update caches, sync data between microservices, and create audit logs among much more. He goes into more detail on the plans for Debezium going forward in this talk. Debezium Use CasesĪccording to Gunnar Morling from Redhat, tech lead for Debezium, CDC means "liberation for your data". The processed data can then be streamed out to a sink database such as ElasticSearch or a data warehouse. The changelog itself can be stored in Kafka, where a series of deployed programs are able to transform, aggregate, and join the data together. ![]() As your database has a change occur you can track that directly in Kafka.Īs illustrated in figure 2, one method of achieving this is by capturing the changelogs of a database upstream in either a Postgres or MySql database using the Debezium Kafka connectors. Here are all the properties of librdkafka, some of them are different from the official Java configuration (that Conduktor supports).Thanks to Kafka Connect and Debezium, change data capture, or CDC is now a common pattern that allows you to expose database changes as events into Kafka. ![]() It may happen when you work with Python or nodejs (both are using librdkafka behind the scene). If you are sure you have configured your connection properly in Conduktor and it works in other tools, make sure you're using the official configuration Java-style, and not the C-style (librdkafka). įAQ Ensure you are using the Java-style configuration See Naming Conventions for Realm Names and Hostnames. Note: It is recommended to have all uppercase realm names. Solution 4: Make the Kerberos realm name all uppercase.Cause 4: The Kerberos realm name is not all uppercase.Solution 3: Synchronize the clocks (or have a system administrator do so).Cause 3: Clock skew - If the time on the KDC and on the client differ significantly (typically 5 minutes), this error can be returned. ![]() Solution 2: Consult your Kerberos documentation to generate a new keytab and use that keytab.Cause 2: If you are using the keytab to get the key (e.g., by setting the useKeyTab option to true in the Krb5LoginModule entry in the JAAS login configuration file), then the key might have changed since you updated the keytab.Cause 1: The password entered is incorrect.Troubleshooting : " KrbException: Pre-authentication information was invalid " ERROR\ ![]()
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