Technical requirements

In the Learn PostgreSQL GitHub repository, you can find three Docker images:

• chapter17_streaming: Primary/replica asynchronous replication; if you want to use the replica container after starting the container with:

  chapter_17$ bash run-pg-docker.sh chapter17_streaming
  

  you have to run:

  chapter_17$ bash run-pg-docker_replica.sh chapter17_streaming
  

• chapter17_synchronous: Primary/replica synchronous replication; if you want to use the replica container after starting the container with:

  chapter_17$ bash run-pg-docker.sh chapter17_synchronous
  

  you have to run:

  chapter_17$ bash run-pg-docker_replica.sh chapter17_synchronous
  

• chapter17_delayed: Primary/replica with delayed replication; if you want to use the replica container after starting the container with:

  chapter_17$ bash run-pg-docker.sh chapter17_delayed
  

  you have to run:

  chapter_17...