revno: 5265

committer: Christopher Powers <chris.powers@oracle.com>
branch nick: mysql-5.6-bug16750433
timestamp: Fri 2013-06-28 07:48:12 -0500
message:
  Bug#16750433 - THE STATEMENT DIGEST DOES NOT SHOW THE SLAVE SQL
                 THREAD STATEMENTS

revno: 5414.1.1
committer: Marc Alff <marc.alff@oracle.com>
branch nick: mysql-5.6-bug17271055
timestamp: Thu 2013-08-29 12:29:25 +0200
message:
  Bug#17271055 "STATEMENT/COM" EVENT MEANING IS UNCLEAR

(test case was merged with perfschema 5.6.17)

sql/log_event.cc

@@ -41,6 +41,7 @@
 #include "transaction.h"
 #include <my_dir.h>
 #include "sql_show.h"    // append_identifier
+#include <mysql/psi/mysql_statement.h>
 #include <strfunc.h>
 #include "compat56.h"
 
@@ -4272,6 +4273,13 @@ int Query_log_event::do_apply_event(rpl_group_info *rgi,
       Parser_state parser_state;
       if (!parser_state.init(thd, thd->query(), thd->query_length()))
       {
+        thd->m_statement_psi= MYSQL_START_STATEMENT(&thd->m_statement_state,
+                                                    stmt_info_rpl.m_key,
+                                                    thd->db, thd->db_length,
+                                                    thd->charset());
+        THD_STAGE_INFO(thd, stage_init);
+        MYSQL_SET_STATEMENT_TEXT(thd->m_statement_psi, thd->query(), thd->query_length());
+
         mysql_parse(thd, thd->query(), thd->query_length(), &parser_state);
         /* Finalize server status flags after executing a statement. */
         thd->update_server_status();
@@ -4455,6 +4463,11 @@ end:
   thd->set_db(NULL, 0);                 /* will free the current database */
   thd->reset_query();
   DBUG_PRINT("info", ("end: query= 0"));
+
+  /* Mark the statement completed. */
+  MYSQL_END_STATEMENT(thd->m_statement_psi, thd->get_stmt_da());
+  thd->m_statement_psi= NULL;
+
   /*
     As a disk space optimization, future masters will not log an event for
     LAST_INSERT_ID() if that function returned 0 (and thus they will be able

sql/mysqld.cc

@@ -338,6 +338,13 @@ static PSI_rwlock_key key_rwlock_openssl;
 volatile sig_atomic_t ld_assume_kernel_is_set= 0;
 #endif
 
+/**
+  Statement instrumentation key for replication.
+*/
+#ifdef HAVE_PSI_STATEMENT_INTERFACE
+PSI_statement_info stmt_info_rpl;
+#endif
+
 /* the default log output is log tables */
 static bool lower_case_table_names_used= 0;
 static bool max_long_data_size_used= false;
@@ -3791,7 +3798,7 @@ void init_com_statement_info()
     com_statement_info[index].m_flags= 0;
   }
 
-  /* "statement/com/query" can mutate into "statement/sql/..." */
+  /* "statement/abstract/query" can mutate into "statement/sql/..." */
   com_statement_info[(uint) COM_QUERY].m_flags= PSI_FLAG_MUTABLE;
 }
 #endif
@@ -9617,23 +9624,49 @@ void init_server_psi_keys(void)
 
   category= "com";
   init_com_statement_info();
-  count= array_elements(com_statement_info);
+
+  /*
+    Register [0 .. COM_QUERY - 1] as "statement/com/..."
+  */
+  count= (int) COM_QUERY;
   mysql_statement_register(category, com_statement_info, count);
 
+  /*
+    Register [COM_QUERY + 1 .. COM_END] as "statement/com/..."
+  */
+  count= (int) COM_END - (int) COM_QUERY;
+  mysql_statement_register(category, & com_statement_info[(int) COM_QUERY + 1], count);
+
+  category= "abstract";
+  /*
+    Register [COM_QUERY] as "statement/abstract/com_query"
+  */
+  mysql_statement_register(category, & com_statement_info[(int) COM_QUERY], 1);
+
   /*
     When a new packet is received,
-    it is instrumented as "statement/com/".
+    it is instrumented as "statement/abstract/new_packet".
     Based on the packet type found, it later mutates to the
     proper narrow type, for example
-    "statement/com/query" or "statement/com/ping".
+    "statement/abstract/query" or "statement/com/ping".
-    In cases of "statement/com/query", SQL queries are given to
+    In cases of "statement/abstract/query", SQL queries are given to
     the parser, which mutates the statement type to an even more
     narrow classification, for example "statement/sql/select".
   */
   stmt_info_new_packet.m_key= 0;
-  stmt_info_new_packet.m_name= "";
+  stmt_info_new_packet.m_name= "new_packet";
   stmt_info_new_packet.m_flags= PSI_FLAG_MUTABLE;
-  mysql_statement_register(category, & stmt_info_new_packet, 1);
+  mysql_statement_register(category, &stmt_info_new_packet, 1);
+
+  /*
+    Statements processed from the relay log are initially instrumented as
+    "statement/abstract/relay_log". The parser will mutate the statement type to
+    a more specific classification, for example "statement/sql/insert".
+  */
+  stmt_info_rpl.m_key= 0;
+  stmt_info_rpl.m_name= "relay_log";
+  stmt_info_rpl.m_flags= PSI_FLAG_MUTABLE;
+  mysql_statement_register(category, &stmt_info_rpl, 1);
 #endif
 }
 

sql/mysqld.h

@@ -461,6 +461,11 @@ extern PSI_statement_info sql_statement_info[(uint) SQLCOM_END + 1];
 */
 extern PSI_statement_info com_statement_info[(uint) COM_END + 1];
 
+/**
+  Statement instrumentation key for replication.
+*/
+extern PSI_statement_info stmt_info_rpl;
+
 void init_sql_statement_info();
 void init_com_statement_info();
 #endif /* HAVE_PSI_STATEMENT_INTERFACE */

sql/sys_vars.cc

@@ -287,14 +287,15 @@ static Sys_var_long Sys_pfs_events_stages_history_size(
   - 1 for "statement/com/new_packet", for unknown enum_server_command
   - 1 for "statement/com/Error", for invalid enum_server_command
   - SQLCOM_END for all regular "statement/sql/...",
-  - 1 for "statement/sql/error", for invalid enum_sql_command.
+  - 1 for "statement/sql/error", for invalid enum_sql_command
+  - 1 for "statement/rpl/relay_log", for replicated statements.
 */
 static Sys_var_ulong Sys_pfs_max_statement_classes(
        "performance_schema_max_statement_classes",
        "Maximum number of statement instruments.",
        PARSED_EARLY READ_ONLY GLOBAL_VAR(pfs_param.m_statement_class_sizing),
        CMD_LINE(REQUIRED_ARG), VALID_RANGE(0, 256),
-       DEFAULT((ulong) SQLCOM_END + (ulong) COM_END + 3),
+       DEFAULT((ulong) SQLCOM_END + (ulong) COM_END + 4),
        BLOCK_SIZE(1));
 
 static Sys_var_long Sys_pfs_events_statements_history_long_size(