MDEV-9609 : wsrep_debug only logs DDL information on originating node

Added DDL logging to applier and replaying also so that
DDL is logged on other than originating node.

wsrep.h
	Removed wsrep_thd_is_local conditions and cleaned up
	the macros. Removed WSREP_TO_ISOLATION_END.

Event_job_data::execute
change_password
acl_set_default_role
mysql_execute_command
	Replaced macro by function call

wsrep_to_isolation_begin
wsrep_to_isolation_end
	If execution is not local log DDL-information when
	wsrep_debug is enabled

No new tests required as current regression setting is
already testing these code paths.

include/wsrep.h

@@ -25,38 +25,37 @@
 #define DBUG_ASSERT_IF_WSREP(A) DBUG_ASSERT(A)
 
 #define WSREP_MYSQL_DB (char *)"mysql"
+
 #define WSREP_TO_ISOLATION_BEGIN_IF(db_, table_, table_list_)           \
-  if (WSREP_ON && WSREP(thd) && wsrep_to_isolation_begin(thd, db_, table_, table_list_))
+  if (WSREP_ON && WSREP(thd) &&                                         \
+      wsrep_to_isolation_begin(thd, db_, table_, table_list_))
 
 #define WSREP_TO_ISOLATION_BEGIN(db_, table_, table_list_)              \
-  if (WSREP_ON && WSREP(thd) && wsrep_to_isolation_begin(thd, db_, table_, table_list_)) \
+  if (WSREP_ON && WSREP(thd) &&                                         \
+      wsrep_to_isolation_begin(thd, db_, table_, table_list_))          \
     goto wsrep_error_label;
 
 #define WSREP_TO_ISOLATION_BEGIN_CREATE(db_, table_, table_list_, create_info_)	\
   if (WSREP_ON && WSREP(thd) &&                                                 \
       wsrep_to_isolation_begin(thd, db_, table_,                                \
-                               table_list_, nullptr, nullptr, create_info_))\
+                               table_list_, nullptr, nullptr, create_info_))    \
     goto wsrep_error_label;
 
 #define WSREP_TO_ISOLATION_BEGIN_ALTER(db_, table_, table_list_, alter_info_, fk_tables_, create_info_)	\
-  if (WSREP(thd) && wsrep_thd_is_local(thd) &&				\
+  if (WSREP(thd) &&                                                     \
       wsrep_to_isolation_begin(thd, db_, table_,                        \
                                table_list_, alter_info_,                \
                                fk_tables_, create_info_))               \
     goto wsrep_error_label;
 
-#define WSREP_TO_ISOLATION_END                                          \
-  if ((WSREP(thd) && wsrep_thd_is_local_toi(thd)) ||                    \
-      wsrep_thd_is_in_rsu(thd))                                         \
-    wsrep_to_isolation_end(thd);
-
 /*
   Checks if lex->no_write_to_binlog is set for statements that use LOCAL or
   NO_WRITE_TO_BINLOG.
 */
 #define WSREP_TO_ISOLATION_BEGIN_WRTCHK(db_, table_, table_list_)       \
-  if (WSREP(thd) && !thd->lex->no_write_to_binlog                                   \
-         && wsrep_to_isolation_begin(thd, db_, table_, table_list_)) goto wsrep_error_label;
+  if (WSREP(thd) && !thd->lex->no_write_to_binlog &&                    \
+    wsrep_to_isolation_begin(thd, db_, table_, table_list_))            \
+    goto wsrep_error_label;
 
 #define WSREP_TO_ISOLATION_BEGIN_FK_TABLES(db_, table_, table_list_, fk_tables)    \
   if (WSREP(thd) && !thd->lex->no_write_to_binlog                                  \
@@ -77,7 +76,6 @@
 #define WSREP_TO_ISOLATION_BEGIN(db_, table_, table_list_) do { } while(0)
 #define WSREP_TO_ISOLATION_BEGIN_ALTER(db_, table_, table_list_, alter_info_, fk_tables_, create_info_)
 #define WSREP_TO_ISOLATION_BEGIN_FK_TABLES(db_, table_, table_list_, fk_tables_)
-#define WSREP_TO_ISOLATION_END
 #define WSREP_TO_ISOLATION_BEGIN_CREATE(db_, table_, table_list_, create_info_)
 #define WSREP_TO_ISOLATION_BEGIN_WRTCHK(db_, table_, table_list_)
 #define WSREP_SYNC_WAIT(thd_, before_)

sql/event_data_objects.cc

@@ -1545,7 +1545,9 @@ Event_job_data::execute(THD *thd, bool drop)
 
       if (sql_command_set)
       {
-        WSREP_TO_ISOLATION_END;
+#ifdef WITH_WSREP
+	wsrep_to_isolation_end(thd);
+#endif
         thd->lex->sql_command = sql_command_save;
       }
 

sql/sql_acl.cc

@@ -4028,10 +4028,9 @@ bool change_password(THD *thd, LEX_USER *user)
 
 #ifdef WITH_WSREP
 wsrep_error_label:
-  if (WSREP(thd) && !thd->wsrep_applier)
+  if (WSREP(thd))
   {
-    WSREP_TO_ISOLATION_END;
-
+    wsrep_to_isolation_end(thd);
     thd->set_query(query_save);
   }
 #endif /* WITH_WSREP */
@@ -4172,10 +4171,9 @@ int acl_set_default_role(THD *thd, const char *host, const char *user,
 
 #ifdef WITH_WSREP
 wsrep_error_label:
-  if (WSREP(thd) && !thd->wsrep_applier)
+  if (WSREP(thd))
   {
-    WSREP_TO_ISOLATION_END;
-
+    wsrep_to_isolation_end(thd);
     thd->set_query(query_save);
   }
 #endif /* WITH_WSREP */

sql/sql_parse.cc

@@ -6114,7 +6114,8 @@ mysql_execute_command(THD *thd)
 #ifdef WITH_WSREP
   thd->wsrep_consistency_check= NO_CONSISTENCY_CHECK;
 
-  WSREP_TO_ISOLATION_END;
+  if (wsrep_thd_is_toi(thd) || wsrep_thd_is_in_rsu(thd))
+    wsrep_to_isolation_end(thd);
   /*
     Force release of transactional locks if not in active MST and wsrep is on.
   */

sql/wsrep_mysqld.cc

@@ -2697,6 +2697,17 @@ static void wsrep_RSU_end(THD *thd)
   thd->variables.wsrep_on= 1;
 }
 
+static inline bool is_replaying_connection(THD *thd)
+{
+  bool ret;
+
+  mysql_mutex_lock(&thd->LOCK_thd_data);
+  ret=  (thd->wsrep_trx().state() == wsrep::transaction::s_replaying) ? true : false;
+  mysql_mutex_unlock(&thd->LOCK_thd_data);
+
+  return ret;
+}
+
 int wsrep_to_isolation_begin(THD *thd, const char *db_, const char *table_,
                              const TABLE_LIST* table_list,
                              const Alter_info *alter_info,
@@ -2706,9 +2717,18 @@ int wsrep_to_isolation_begin(THD *thd, const char *db_, const char *table_,
   /*
     No isolation for applier or replaying threads.
    */
-  if (!wsrep_thd_is_local(thd)) return 0;
+  if (!wsrep_thd_is_local(thd))
+  {
+    if (wsrep_OSU_method_get(thd) == WSREP_OSU_TOI)
+      WSREP_DEBUG("%s TOI Begin: %s",
+                  is_replaying_connection(thd) ? "Replay" : "Apply",
+                  wsrep_thd_query(thd));
+
+    return 0;
+  }
 
   int ret= 0;
+
   mysql_mutex_lock(&thd->LOCK_thd_data);
 
   if (thd->wsrep_trx().state() == wsrep::transaction::s_must_abort)
@@ -2791,25 +2811,32 @@ int wsrep_to_isolation_begin(THD *thd, const char *db_, const char *table_,
 
 void wsrep_to_isolation_end(THD *thd)
 {
-  DBUG_ASSERT(wsrep_thd_is_local_toi(thd) ||
-              wsrep_thd_is_in_rsu(thd));
-
-  thd->variables.lock_wait_timeout= thd->variables.saved_lock_wait_timeout;
-
   if (wsrep_thd_is_local_toi(thd))
   {
+    thd->variables.lock_wait_timeout= thd->variables.saved_lock_wait_timeout;
     DBUG_ASSERT(wsrep_OSU_method_get(thd) == WSREP_OSU_TOI);
     wsrep_TOI_end(thd);
   }
   else if (wsrep_thd_is_in_rsu(thd))
   {
+    thd->variables.lock_wait_timeout= thd->variables.saved_lock_wait_timeout;
     DBUG_ASSERT(wsrep_OSU_method_get(thd) == WSREP_OSU_RSU);
     wsrep_RSU_end(thd);
   }
   else
   {
-    DBUG_ASSERT(0);
+   /* Applier or replaying threads just output TO END */
+   if (wsrep_debug)
+   {
+     wsrep::client_state& client_state(thd->wsrep_cs());
+     WSREP_DEBUG("%s TO END: %lld: %s",
+                 is_replaying_connection(thd) ? "Replay" : "Apply",
+                 client_state.toi_meta().seqno().get(),
+                 wsrep_thd_query(thd));
+   }
+   return;
   }
+
   if (wsrep_emulate_bin_log) wsrep_thd_binlog_trx_reset(thd);
 }
 
@@ -2957,17 +2984,6 @@ static inline bool is_client_connection(THD *thd)
   return (thd->wsrep_client_thread && thd->variables.wsrep_on);
 }
 
-static inline bool is_replaying_connection(THD *thd)
-{
-  bool ret;
-
-  mysql_mutex_lock(&thd->LOCK_thd_data);
-  ret=  (thd->wsrep_trx().state() == wsrep::transaction::s_replaying) ? true : false;
-  mysql_mutex_unlock(&thd->LOCK_thd_data);
-
-  return ret;
-}
-
 static inline bool is_committing_connection(THD *thd)
 {
   bool ret;