[MDEV-30269] Remove rpl_semi_sync_[master,slave] plugin keyword usage in code - Jira

According to the documentation of rpl_semi_sync_slave, this option is removed and indeed -result

show variables like 'rpl_semi_sync_slave%';

Variable_name	Value

rpl_semi_sync_slave_delay_master	OFF

rpl_semi_sync_slave_enabled	OFF

rpl_semi_sync_slave_kill_conn_timeout	5

rpl_semi_sync_slave_trace_level	32

However there is usage of this variable in functions is_semi_sync_slave() and Repl_semi_sync_slave::request_transmit()

inline bool is_semi_sync_slave()

  int null_value;

  long long val= 0;

  get_user_var_int("rpl_semi_sync_slave", &val, &null_value);

  return val;

It should be changed with rpl_semi_sync_slave_enabled (KB)see Repl_semi_sync_slave::init_object().

relates to

MDEV-13073 AliSQL: [Performance] Issue #40 Optimize performance of semisync

links to

PR 2528

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