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PgSQL判断主备库角色本实例采用5433端口$ psql -h 127.0.0.1 -p 5433psql (12.3)Type "help" for help. postgres=# \c pgdbYou are now connected to database "pgdb" as user 阅读全文
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Monitoring Group Replication https://dev.mysql.com/doc/refman/5.7/en/group-replication-monitoring.html Use the Perfomance Schema tables to monitor Gro 阅读全文
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1、The MySQL Group Replication plugin includes a set of APIs for capture, apply, and lifecycle, which control how the plugin interacts with MySQL Serve 阅读全文
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> select saddr,sid,serial#,paddr,username,status,program,sql_id from v$session where username =upper('sys'); SADDR SID SERIAL# PADDR USERNAME STATUS P 阅读全文