Is there any unique identifier for postgreSQL server Or how come postgres master is identifying its slave...
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Is there any way to have more than one PostgreSQL slave servers in the same system.
If yes, how come a master detect each server as different slaves from the below query
select * from pg_stat_replication;
will give one row for each slave which are connected to it, with PID, IP-address/client_address, client_port, etc..
If two servers are running in the same machine gives the same IP-address so it is not a unique identifier.
If slave got restarted then both client_port and PID will change so these are also cant be a unique identifier.
So, what is the unique identifier used by Postgres master to identify each slave server uniquely? Or how it is finding its slave servers differently?
postgresql master-slave-replication
asked 10 mins ago
manvithmanvith
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Is there any way to have more than one PostgreSQL slave servers in the same system.
If yes, how come a master detect each server as different slaves from the below query
select * from pg_stat_replication;
will give one row for each slave which are connected to it, with PID, IP-address/client_address, client_port, etc..
If two servers are running in the same machine gives the same IP-address so it is not a unique identifier.
If slave got restarted then both client_port and PID will change so these are also cant be a unique identifier.
So, what is the unique identifier used by Postgres master to identify each slave server uniquely? Or how it is finding its slave servers differently?
postgresql master-slave-replication
asked 10 mins ago
manvithmanvith
1
New contributor
manvith is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
Is there any way to have more than one PostgreSQL slave servers in the same system.
If yes, how come a master detect each server as different slaves from the below query
select * from pg_stat_replication;
will give one row for each slave which are connected to it, with PID, IP-address/client_address, client_port, etc..
If two servers are running in the same machine gives the same IP-address so it is not a unique identifier.
If slave got restarted then both client_port and PID will change so these are also cant be a unique identifier.
So, what is the unique identifier used by Postgres master to identify each slave server uniquely? Or how it is finding its slave servers differently?
postgresql master-slave-replication
asked 10 mins ago
manvithmanvith
1
New contributor
manvith is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Is there any way to have more than one PostgreSQL slave servers in the same system.
If yes, how come a master detect each server as different slaves from the below query
select * from pg_stat_replication;
will give one row for each slave which are connected to it, with PID, IP-address/client_address, client_port, etc..
If two servers are running in the same machine gives the same IP-address so it is not a unique identifier.
If slave got restarted then both client_port and PID will change so these are also cant be a unique identifier.
So, what is the unique identifier used by Postgres master to identify each slave server uniquely? Or how it is finding its slave servers differently?
postgresql master-slave-replication
postgresql master-slave-replication
asked 10 mins ago
manvithmanvith
1
New contributor
manvith is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 10 mins ago
manvithmanvith
1
New contributor
manvith is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 10 mins ago
manvithmanvith
1
New contributor
manvith is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 10 mins ago
manvithmanvith
1
asked 10 mins ago
manvithmanvith
1
1
New contributor
manvith is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
manvith is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
manvith is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
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