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MDEV-12009: Allow to force kill user threads/query which are flagged as high priority by Galera

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As noted on kill_one_thread SUPER should be able to kill even
system threads i.e. threads/query flagged as high priority or
wsrep applier thread. Normal user, should not able to kill
threads/query flagged as high priority (BF) or wsrep applier
thread.
This commit is contained in:
Jan Lindström
2019-02-05 15:41:53 +02:00
parent 21b2fada7a
commit 81d71ee6b2
10 changed files with 95 additions and 8 deletions
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3
include/mysql/service_wsrep.h
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@@ -112,6 +112,7 @@ extern struct wsrep_service_st {
int (*wsrep_trx_order_before_func)(MYSQL_THD, MYSQL_THD);
void (*wsrep_unlock_rollback_func)();
void (*wsrep_set_data_home_dir_func)(const char *data_dir);
my_bool (*wsrep_thd_is_applier_func)(THD *thd);
} *wsrep_service;
#ifdef MYSQL_DYNAMIC_PLUGIN
@@ -155,6 +156,7 @@ extern struct wsrep_service_st {
#define wsrep_trx_order_before(T1,T2) wsrep_service->wsrep_trx_order_before_func(T1,T2)
#define wsrep_unlock_rollback() wsrep_service->wsrep_unlock_rollback_func()
#define wsrep_set_data_home_dir(A) wsrep_service->wsrep_set_data_home_dir_func(A)
#define wsrep_thd_is_applier(T) wsrep_service->wsrep_thd_is_applier_func(T)
#define wsrep_debug get_wsrep_debug()
#define wsrep_log_conflicts get_wsrep_log_conflicts()
@@ -214,6 +216,7 @@ void wsrep_thd_set_conflict_state(THD *thd, enum wsrep_conflict_state state);
bool wsrep_thd_ignore_table(THD *thd);
void wsrep_unlock_rollback();
void wsrep_set_data_home_dir(const char *data_dir);
my_bool wsrep_thd_is_applier(THD *thd);
#endif