Book Image

PostgreSQL for Data Architects

By : Jayadevan M
Book Image

PostgreSQL for Data Architects

By: Jayadevan M

Overview of this book

Table of Contents (19 chapters)
PostgreSQL for Data Architects
About the Author
About the Reviewers

The WAL sender and WAL receiver

These are two processes introduced in the recent versions of PostgreSQL, mainly, to support the replication process. The sender process sends the WALs to the standby server and the receiver on the slave side receives it.

So far, we covered most of all the key processes and one big memory area: shared_buffers. However, we have a couple of important memory areas still to be covered. Let's do this before we move on to the next section.