How does PostgreSQL replication work?
Working of PostgreSQL Replication In PostgreSQL, there is usually one database server on which all the modification relate operations and requests are served. Those changes are applied to other database servers called the slave servers or standby database servers.
Which server should I set the replication parameters on?
These parameters can be set on any server that is to send replication data to one or more standby servers. The primary is always a sending server, so these parameters must always be set on the primary.
What is the difference between master and slave in PostgreSQL?
That means the master nodes are always the replicated data’s senders while slave nodes receive the replicated data and apply the same changes over there. The built-in replication feature that is provided in PostgreSQL is the streaming replication that follows a master-slave structure.
Where are the synchronization workers taken from in PostgreSQL?
The synchronization workers are taken from the pool defined by max_logical_replication_workers. The default value is 2. This parameter can only be set in the postgresql.conf file or on the server command line. 20.5.
How to connect to PostgreSQL database using PHP?
There are two ways we can connect to the PostgreSQL database: 1 Using the PHP command line interface. 2 Using PHP API. More
Can Slony replicate between different versions of PostgreSQL?
We can replicate between different major versions of PostgreSQL instances which makes Slony a great option for database upgrades Replication events are logged within the database in Slony specific log tables which can pose a maintenance overhead.
How many database servers are there in PostgreSQL?
In PostgreSQL, there is usually one database server on which all the modification relate operations and requests are served. Those changes are applied to other database servers called the slave servers or standby database servers.