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Building Real Time Data Pipelines with CDC, Outbox, PostgreSQL, and Apache NiFi

lotharschulz.info · published 5 January 2026

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PostgreSQL CDC Best Practices: Managing WAL Growth and Replication Slots Read at the source ↗

lotharschulz.info

https://www.lotharschulz.info/category/architecture/cdc-architecture/

lotharschulz.info

https://www.lotharschulz.info/category/architecture/outbox-architecture/

lotharschulz.info

https://github.com/apache/nifi

github.com

https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/2.7.0/org.apache.nifi.processors.standard.QueryDatabaseTable/index.html

nifi.apache.org

https://www.postgresql.org/docs/17/runtime-config-wal.html

postgresql.org

https://docs.snowflake.com/en/release-notes/2025/other/2025-11-04-openflow

docs.snowflake.com

https://docs.snowflake.com/en/user-guide/data-integration/openflow/about

docs.snowflake.com

CDC and Outbox Pattern – same same but different? Read at the source ↗

lotharschulz.info

https://www.lotharschulz.info/wp-content/uploads/Screenshot-2022-12-08-at-17.53.25.png

lotharschulz.info

https://www.lotharschulz.info/wp-content/uploads/Screenshot-2023-05-09-at-22.08.11.png

lotharschulz.info

https://codeberg.org/lotharschulz/nifi-postgresql

codeberg.org

https://github.com/lotharschulz/nifi-postgresql

github.com

https://github.com/lotharschulz/nifi-postgresql/tree/main/.github/agents

github.com

https://codeberg.org/lotharschulz/nifi-postgresql/src/branch/main/docker-compose.yml

codeberg.org

https://www.postgresql.org/docs/17/logicaldecoding-explanation.html

postgresql.org

https://codeberg.org/lotharschulz/nifi-postgresql/src/branch/main/init.sql

codeberg.org

https://www.postgresql.org/docs/17/logicaldecoding-example.html

postgresql.org

https://codeberg.org/lotharschulz/nifi-postgresql/src/branch/main/nifi-cdc-setup.sh

codeberg.org

https://codeberg.org/lotharschulz/nifi-postgresql/src/branch/main/monitor-cdc-slot.sh

codeberg.org

https://codeberg.org/lotharschulz/nifi-postgresql/src/branch/main/monitor-outbox-slot.sh

codeberg.org

https://codeberg.org/lotharschulz/nifi-postgresql/commit/5c8d2eabeada1919985e3bd64c64df3eac0a566a

codeberg.org

https://codeberg.org/lotharschulz/nifi-postgresql/commit/5907f4b69abbc526d47d9f1b4d1f007c46301812

codeberg.org