This table shows the configuration parameters used by the
replica for connecting to the source. Parameters stored in the
table can be changed at runtime with the
CHANGE MASTER TO
statement, as
indicated in the column descriptions.
Compared to the
replication_connection_status
table,
replication_connection_configuration
changes less frequently. It contains values that define how
the replica connects to the source and that remain constant
during the connection, whereas
replication_connection_status
contains values that change during the connection.
The
replication_connection_configuration
table has the following columns. The column descriptions
indicate the corresponding CHANGE MASTER TO
options from which the column values are taken, and the table
given later in this section shows the correspondence between
replication_connection_configuration
columns and SHOW SLAVE STATUS
columns.
CHANNEL_NAME
The replication channel which this row is displaying. There is always a default replication channel, and more replication channels can be added. See Section 16.2.2, “Replication Channels” for more information. (
CHANGE MASTER TO
option:FOR CHANNEL
)HOST
The replication source server that the replica is connected to. (
CHANGE MASTER TO
option:MASTER_HOST
)PORT
The port used to connect to the replication source server. (
CHANGE MASTER TO
option:MASTER_PORT
)USER
The user name of the account used to connect to the replication source server. (
CHANGE MASTER TO
option:MASTER_USER
)NETWORK_INTERFACE
The network interface that the replica is bound to, if any. (
CHANGE MASTER TO
option:MASTER_BIND
)AUTO_POSITION
1 if autopositioning is in use; otherwise 0. (
CHANGE MASTER TO
option:MASTER_AUTO_POSITION
)SSL_ALLOWED
,SSL_CA_FILE
,SSL_CA_PATH
,SSL_CERTIFICATE
,SSL_CIPHER
,SSL_KEY
,SSL_VERIFY_SERVER_CERTIFICATE
,SSL_CRL_FILE
,SSL_CRL_PATH
These columns show the SSL parameters used by the replica to connect to the replication source server, if any.
SSL_ALLOWED
has these values:Yes
if an SSL connection to the source is permittedNo
if an SSL connection to the source is not permittedIgnored
if an SSL connection is permitted but the replica does not have SSL support enabled
CHANGE MASTER TO
options for the other SSL columns:MASTER_SSL_CA
,MASTER_SSL_CAPATH
,MASTER_SSL_CERT
,MASTER_SSL_CIPHER
,MASTER_SSL_CRL
,MASTER_SSL_CRLPATH
,MASTER_SSL_KEY
,MASTER_SSL_VERIFY_SERVER_CERT
.CONNECTION_RETRY_INTERVAL
The number of seconds between connect retries. (
CHANGE MASTER TO
option:MASTER_CONNECT_RETRY
)CONNECTION_RETRY_COUNT
The number of times the replica can attempt to reconnect to the source in the event of a lost connection. (
CHANGE MASTER TO
option:MASTER_RETRY_COUNT
)HEARTBEAT_INTERVAL
The replication heartbeat interval on a replica, measured in seconds. (
CHANGE MASTER TO
option:MASTER_HEARTBEAT_PERIOD
)TLS_VERSION
The TLS version used on the source. For TLS version information, see Section 6.3.2, “Encrypted Connection TLS Protocols and Ciphers”. (
CHANGE MASTER TO
option:MASTER_TLS_VERSION
)This column was added in MySQL 5.7.10.
TRUNCATE TABLE
is not permitted
for the
replication_connection_configuration
table.
The following table shows the correspondence between
replication_connection_configuration
columns and SHOW SLAVE STATUS
columns.
replication_connection_configuration Column |
SHOW SLAVE STATUS Column |
---|---|
CHANNEL_NAME |
Channel_name |
HOST |
Master_Host |
PORT |
Master_Port |
USER |
Master_User |
NETWORK_INTERFACE |
Master_Bind |
AUTO_POSITION |
Auto_Position |
SSL_ALLOWED |
Master_SSL_Allowed |
SSL_CA_FILE |
Master_SSL_CA_File |
SSL_CA_PATH |
Master_SSL_CA_Path |
SSL_CERTIFICATE |
Master_SSL_Cert |
SSL_CIPHER |
Master_SSL_Cipher |
SSL_KEY |
Master_SSL_Key |
SSL_VERIFY_SERVER_CERTIFICATE |
Master_SSL_Verify_Server_Cert |
SSL_CRL_FILE |
Master_SSL_Crl |
SSL_CRL_PATH |
Master_SSL_Crlpath |
CONNECTION_RETRY_INTERVAL |
Connect_Retry |
CONNECTION_RETRY_COUNT |
Master_Retry_Count |
HEARTBEAT_INTERVAL |
None |
TLS_VERSION |
Master_TLS_Version |