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BUG#28722 (Multi-engine statements on has_own_binlogging engine):

Browse Source 
WL#3931 (Multi-table statement involving self-logging engines):

Adding logic to generate error if more than one engine is involved in
the statement and at least one engine is self-logging (i.e., has the
HA_HAS_OWN_BINLOGGING table flags set).


mysql-test/r/binlog_multi_engine.result:
  Result change.
mysql-test/t/binlog_multi_engine.test:
  Errors now generated for some statements due to NDB setting the
  HA_HAS_OWN_BINLOGGING flag.
sql/sql_base.cc:
  Computing both the intersection and union of all table flags in the
  logic to decide logging format.
  
  Calculating if there are more than one engine involved in the statement.
  For this case, we only consider engines that hold tables that data is
  written to.
  
  Adding logic to generate error if more than one engine is involved in
  the statement and at least one engine is self-logging (i.e., has the
  HA_HAS_OWN_BINLOGGING table flags set).
  ---
  Renaming variable.
This commit is contained in:
unknown
2007-06-21 13:34:06 +02:00
parent f3dc047890
commit d2d630c2ee
3 changed files with 57 additions and 29 deletions
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22
mysql-test/r/binlog_multi_engine.result
View File

@@ -10,7 +10,7 @@ UPDATE t1m, t1b SET m = 2, b = 3 WHERE n = c;
UPDATE t1m, t1n SET m = 2, e = 3 WHERE n = f;
ERROR HY000: Binary logging not possible. Message: Statement-based format required for this statement, but not allowed by this combination of engines
UPDATE t1n, t1b SET e = 2, b = 3 WHERE f = c;
ERROR HY000: Binary logging not possible. Message: Statement cannot be logged to the binary log in row-based nor statement-based format
ERROR HY000: Binary logging not possible. Message: Statement-based format required for this statement, but not allowed by this combination of engines
TRUNCATE t1m;
TRUNCATE t1b;
TRUNCATE t1n;
@@ -20,8 +20,9 @@ INSERT INTO t1b VALUES (1,1), (1,2), (2,1), (2,2);
INSERT INTO t1n VALUES (1,1), (1,2), (2,1), (2,2);
UPDATE t1m, t1b SET m = 2, b = 3 WHERE n = c;
UPDATE t1m, t1n SET m = 2, e = 3 WHERE n = f;
ERROR HY000: Binary logging not possible. Message: Statement cannot be written atomically since more than one engine involved and at least one engine is self-logging
UPDATE t1n, t1b SET e = 2, b = 3 WHERE f = c;
ERROR HY000: Binary logging not possible. Message: Statement cannot be logged to the binary log in row-based nor statement-based format
ERROR HY000: Binary logging not possible. Message: Statement cannot be written atomically since more than one engine involved and at least one engine is self-logging
TRUNCATE t1m;
TRUNCATE t1b;
TRUNCATE t1n;
@@ -33,8 +34,9 @@ INSERT INTO t1n VALUES (1,1), (1,2), (2,1), (2,2);
UPDATE t1m, t1b SET m = 2, b = 3 WHERE n = c;
ERROR HY000: Binary logging not possible. Message: Row-based format required for this statement, but not allowed by this combination of engines
UPDATE t1m, t1n SET m = 2, e = 3 WHERE n = f;
ERROR HY000: Binary logging not possible. Message: Statement cannot be written atomically since more than one engine involved and at least one engine is self-logging
UPDATE t1n, t1b SET e = 2, b = 3 WHERE f = c;
ERROR HY000: Binary logging not possible. Message: Statement cannot be logged to the binary log in row-based nor statement-based format
ERROR HY000: Binary logging not possible. Message: Row-based format required for this statement, but not allowed by this combination of engines
DROP TABLE t1m, t1b, t1n;
show binlog events from <binlog_start>;
Log_name Pos Event_type Server_id End_log_pos Info
@@ -50,9 +52,6 @@ master-bin.000001 # Query # # use `test`; TRUNCATE t1n
master-bin.000001 # Query # # use `test`; INSERT INTO t1m VALUES (1,1), (1,2), (2,1), (2,2)
master-bin.000001 # Query # # use `test`; INSERT INTO t1b VALUES (1,1), (1,2), (2,1), (2,2)
master-bin.000001 # Query # # use `test`; UPDATE t1m, t1b SET m = 2, b = 3 WHERE n = c
master-bin.000001 # Table_map # # table_id: # (test.t1m)
master-bin.000001 # Table_map # # table_id: # (test.t1n)
master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F
master-bin.000001 # Query # # use `test`; TRUNCATE t1m
master-bin.000001 # Query # # use `test`; TRUNCATE t1b
master-bin.000001 # Query # # BEGIN
@@ -60,23 +59,16 @@ master-bin.000001 # Table_map # # table_id: # (test.t1n)
master-bin.000001 # Table_map # # table_id: # (mysql.ndb_apply_status)
master-bin.000001 # Write_rows # # table_id: #
master-bin.000001 # Write_rows # # table_id: #
master-bin.000001 # Write_rows # # table_id: #
master-bin.000001 # Update_rows # # table_id: #
master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F
master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
master-bin.000001 # Query # # COMMIT
master-bin.000001 # Query # # use `test`; TRUNCATE t1n
master-bin.000001 # Table_map # # table_id: # (test.t1m)
master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
master-bin.000001 # Table_map # # table_id: # (test.t1m)
master-bin.000001 # Table_map # # table_id: # (test.t1n)
master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F
master-bin.000001 # Query # # BEGIN
master-bin.000001 # Table_map # # table_id: # (test.t1n)
master-bin.000001 # Table_map # # table_id: # (mysql.ndb_apply_status)
master-bin.000001 # Write_rows # # table_id: #
master-bin.000001 # Write_rows # # table_id: #
master-bin.000001 # Write_rows # # table_id: #
master-bin.000001 # Update_rows # # table_id: #
master-bin.000001 # Update_rows # # table_id: # flags: STMT_END_F
master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
master-bin.000001 # Query # # COMMIT
master-bin.000001 # Query # # use `test`; DROP TABLE t1m, t1b, t1n

7
mysql-test/t/binlog_multi_engine.test
View File

@@ -1,3 +1,8 @@
# Test to test how logging is done depending on the capabilities of
# the engines. Unfortunately, we don't have a good row-only logging
# engine, and NDB does not really cut is since it is also
# self-logging. I'm using it nevertheless.
source include/have_blackhole.inc;
source include/have_ndb.inc;
source include/have_binlog_format_mixed_or_row.inc;
@@ -30,6 +35,7 @@ INSERT INTO t1b VALUES (1,1), (1,2), (2,1), (2,2);
INSERT INTO t1n VALUES (1,1), (1,2), (2,1), (2,2);
UPDATE t1m, t1b SET m = 2, b = 3 WHERE n = c;
error ER_BINLOG_LOGGING_IMPOSSIBLE;
UPDATE t1m, t1n SET m = 2, e = 3 WHERE n = f;
error ER_BINLOG_LOGGING_IMPOSSIBLE;
UPDATE t1n, t1b SET e = 2, b = 3 WHERE f = c;
@@ -47,6 +53,7 @@ INSERT INTO t1n VALUES (1,1), (1,2), (2,1), (2,2);
error ER_BINLOG_LOGGING_IMPOSSIBLE;
UPDATE t1m, t1b SET m = 2, b = 3 WHERE n = c;
error ER_BINLOG_LOGGING_IMPOSSIBLE;
UPDATE t1m, t1n SET m = 2, e = 3 WHERE n = f;
error ER_BINLOG_LOGGING_IMPOSSIBLE;
UPDATE t1n, t1b SET e = 2, b = 3 WHERE f = c;

57
sql/sql_base.cc
View File

@@ -28,6 +28,8 @@
#include <io.h>
#endif
#define FLAGSTR(S,F) ((S) & (F) ? #F " " : "")
/**
This internal handler is used to trap internally
errors that can occur when executing open table
@@ -3996,36 +3998,47 @@ int decide_logging_format(THD *thd, TABLE_LIST *tables)
{
if (mysql_bin_log.is_open() && (thd->options & OPTION_BIN_LOG))
{
handler::Table_flags binlog_flags= ~handler::Table_flags();
handler::Table_flags flags_some_set= handler::Table_flags();
handler::Table_flags flags_all_set= ~handler::Table_flags();
my_bool multi_engine= FALSE;
void* prev_ht= NULL;
for (TABLE_LIST *table= tables; table; table= table->next_global)
{
if (!table->placeholder() && table->lock_type >= TL_WRITE_ALLOW_WRITE)
{
#define FLAGSTR(S,F) ((S) & (F) ? #F " " : "")
#ifndef DBUG_OFF
ulonglong flags= table->table->file->ha_table_flags();
ulonglong const flags= table->table->file->ha_table_flags();
DBUG_PRINT("info", ("table: %s; ha_table_flags: %s%s",
table->table_name,
FLAGSTR(flags, HA_BINLOG_STMT_CAPABLE),
FLAGSTR(flags, HA_BINLOG_ROW_CAPABLE)));
#endif
binlog_flags &= table->table->file->ha_table_flags();
if (prev_ht && prev_ht != table->table->file->ht)
multi_engine= TRUE;
prev_ht= table->table->file->ht;
flags_all_set &= flags;
flags_some_set |= flags;
}
binlog_flags&= HA_BINLOG_FLAGS;
DBUG_PRINT("info", ("binlog_flags: %s%s",
FLAGSTR(binlog_flags, HA_BINLOG_STMT_CAPABLE),
FLAGSTR(binlog_flags, HA_BINLOG_ROW_CAPABLE)));
}
DBUG_PRINT("info", ("flags_all_set: %s%s",
FLAGSTR(flags_all_set, HA_BINLOG_STMT_CAPABLE),
FLAGSTR(flags_all_set, HA_BINLOG_ROW_CAPABLE)));
DBUG_PRINT("info", ("flags_some_set: %s%s",
FLAGSTR(flags_some_set, HA_BINLOG_STMT_CAPABLE),
FLAGSTR(flags_some_set, HA_BINLOG_ROW_CAPABLE)));
DBUG_PRINT("info", ("thd->variables.binlog_format: %ld",
thd->variables.binlog_format));
DBUG_PRINT("info", ("multi_engine: %s",
multi_engine ? "TRUE" : "FALSE"));
int error= 0;
if (binlog_flags == 0)
if (flags_all_set == 0)
{
my_error((error= ER_BINLOG_LOGGING_IMPOSSIBLE), MYF(0),
"Statement cannot be logged to the binary log in"
" row-based nor statement-based format");
}
else if (thd->variables.binlog_format == BINLOG_FORMAT_STMT &&
(binlog_flags & HA_BINLOG_STMT_CAPABLE) == 0)
(flags_all_set & HA_BINLOG_STMT_CAPABLE) == 0)
{
my_error((error= ER_BINLOG_LOGGING_IMPOSSIBLE), MYF(0),
"Statement-based format required for this statement,"
@@ -4033,13 +4046,29 @@ int decide_logging_format(THD *thd, TABLE_LIST *tables)
}
else if ((thd->variables.binlog_format == BINLOG_FORMAT_ROW ||
thd->lex->is_stmt_unsafe()) &&
(binlog_flags & HA_BINLOG_ROW_CAPABLE) == 0)
(flags_all_set & HA_BINLOG_ROW_CAPABLE) == 0)
{
my_error((error= ER_BINLOG_LOGGING_IMPOSSIBLE), MYF(0),
"Row-based format required for this statement,"
" but not allowed by this combination of engines");
}
/*
If more than one engine is involved in the statement and at
least one is doing it's own logging (is *self-logging*), the
statement cannot be logged atomically, so we generate an error
rather than allowing the binlog to become corrupt.
*/
if (multi_engine &&
(flags_some_set & HA_HAS_OWN_BINLOGGING))
{
error= ER_BINLOG_LOGGING_IMPOSSIBLE;
my_error(error, MYF(0),
"Statement cannot be written atomically since more"
" than one engine involved and at least one engine"
" is self-logging");
}
DBUG_PRINT("info", ("error: %d", error));
if (error)
@@ -4061,7 +4090,7 @@ int decide_logging_format(THD *thd, TABLE_LIST *tables)
here.
*/
if (thd->lex->is_stmt_unsafe() ||
(binlog_flags & HA_BINLOG_STMT_CAPABLE) == 0)
(flags_all_set & HA_BINLOG_STMT_CAPABLE) == 0)
{
thd->set_current_stmt_binlog_row_based_if_mixed();
}