SHOW REPLICA HOSTS
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Contents
Syntax
SHOW SLAVE HOSTS SHOW REPLICA HOSTS -- from MariaDB 10.5.1
Description
This command is run on the primary and displays a list of replicas that are currently registered with it. Only replicas started with the --report-host=host_name
option
are visible in this list.
The output looks like this:
SHOW SLAVE HOSTS; +------------+-----------+------+-----------+ | Server_id | Host | Port | Master_id | +------------+-----------+------+-----------+ | 192168010 | iconnect2 | 3306 | 192168011 | | 1921680101 | athena | 3306 | 192168011 | +------------+-----------+------+-----------+
Server_id
: The unique server ID of the replica server, as configured in the server's option file, or on the command line with --server-id=value.Host
: The host name of the replica server, as configured in the server's option file, or on the command line with--report-host=host_name
. Note that this can differ from the machine name as configured in the operating system.Port
: The port the replica server is listening on.Master_id
: The unique server ID of the primary server that the replica server is replicating from.
Some MariaDB and MySQL versions report another variable, rpl_recovery_rank. This variable was never used, and was eventually removed in MariaDB 10.1.2 .
Requires the REPLICATION MASTER ADMIN privilege (>= MariaDB 10.5.2) or the REPLICATION SLAVE privilege (<= MariaDB 10.5.1).
SHOW REPLICA HOSTS
MariaDB starting with 10.5.1
SHOW REPLICA HOSTS
is an alias for SHOW SLAVE HOSTS
from MariaDB 10.5.1.
See Also
- MariaDB replication
- Replication threads
- SHOW PROCESSLIST. In
SHOW PROCESSLIST
output, replica threads are identified byBinlog Dump
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