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MDEV-28854 Disallow INSERT DELAYED on Spider table

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Spider supports (or at least allows) INSERT DELAYED but the
documentation does not specify spider as a storage engine that supports
"INSERT DELAYED".
Also, although not mentioned in the documentation, "INSERT DELAYED" is
not intended to be executed inside a transaction, as can be seen from
the list of supported storage engines.
The current implementation allows executing a delayed insert on a
remote transactional table and this breaks the consistency ensured by
the transaction.

We too remove "internal_delayed", one of the Spider table parameters.
Documentation says,

> Whether to transmit existence of delay to remote servers when
> executing an INSERT DELAYED statement on local server.

This table parameter is only used for "INSERT DELAYED".

Reviewed by: Nayuta Yanagisawa
This commit is contained in:
Hirokazu Hata 2022-06-27 14:58:18 +09:00 • committed by GitHub
parent 5feb60ce18
commit 2c1aaa6664
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
9 changed files with 71 additions and 35 deletions
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8
storage/spider/ha_spider.cc
View file

@ -1110,9 +1110,6 @@ THR_LOCK_DATA **ha_spider::store_lock(
case TL_READ_HIGH_PRIORITY:
high_priority = TRUE;
break;
case TL_WRITE_DELAYED:
insert_delayed = TRUE;
break;
case TL_WRITE_LOW_PRIORITY:
low_priority = TRUE;
break;
@ -1222,7 +1219,6 @@ THR_LOCK_DATA **ha_spider::store_lock(
lock_type = TL_READ;
if (
lock_type >= TL_WRITE_CONCURRENT_INSERT && lock_type <= TL_WRITE &&
lock_type != TL_WRITE_DELAYED &&
!thd->in_lock_tables && !thd_tablespace_op(thd)
)
lock_type = TL_WRITE_ALLOW_WRITE;
@ -1804,7 +1800,6 @@ int ha_spider::reset()
insert_with_update = FALSE;
low_priority = FALSE;
high_priority = FALSE;
insert_delayed = FALSE;
use_pre_call = FALSE;
use_pre_records = FALSE;
pre_bitmap_checked = FALSE;
@ -9556,7 +9551,6 @@ ulonglong ha_spider::table_flags() const
HA_CAN_FULLTEXT |
HA_CAN_SQL_HANDLER |
HA_FILE_BASED |
HA_CAN_INSERT_DELAYED |
HA_CAN_BIT_FIELD |
HA_NO_COPY_ON_ALTER |
HA_BINLOG_ROW_CAPABLE |
@ -13955,7 +13949,6 @@ int ha_spider::sync_from_clone_source(
update_request = spider->update_request;
lock_mode = spider->lock_mode;
high_priority = spider->high_priority;
insert_delayed = spider->insert_delayed;
low_priority = spider->low_priority;
memcpy(conns, spider->conns,
sizeof(SPIDER_CONN *) * share->link_count);
@ -13997,7 +13990,6 @@ int ha_spider::sync_from_clone_source(
update_request = spider->update_request;
lock_mode = spider->lock_mode;
high_priority = spider->high_priority;
insert_delayed = spider->insert_delayed;
low_priority = spider->low_priority;
if ((error_num = spider_check_trx_and_get_conn(spider->trx->thd,

1
storage/spider/ha_spider.h
View file

@ -168,7 +168,6 @@ public:
bool insert_with_update;
bool low_priority;
bool high_priority;
bool insert_delayed;
bool use_pre_call;
bool use_pre_records;
bool pre_bitmap_checked;

32
storage/spider/mysql-test/spider/bugfix/r/mdev_28854.result Normal file
View file

@ -0,0 +1,32 @@
#
# MDEV-28854 Spider: Disallow INSERT DELAYED on Spider table
#
for master_1
for child2
child2_1
child2_2
child2_3
for child3
connection child2_1;
CREATE DATABASE auto_test_remote;
USE auto_test_remote;
CREATE TABLE tbl_a (id INT);
connection master_1;
CREATE DATABASE auto_test_local;
USE auto_test_local;
CREATE TABLE tbl_a (
id INT
) ENGINE=Spider DEFAULT CHARSET=utf8 COMMENT='table "tbl_a", srv "s_2_1"';
connection master_1;
INSERT DELAYED INTO tbl_a VALUES (1);
ERROR HY000: DELAYED option not supported for table 'tbl_a'
connection master_1;
DROP DATABASE IF EXISTS auto_test_local;
connection child2_1;
DROP DATABASE IF EXISTS auto_test_remote;
for master_1
for child2
child2_1
child2_2
child2_3
for child3

3
storage/spider/mysql-test/spider/bugfix/t/mdev_28854.cnf Normal file
View file

@ -0,0 +1,3 @@
!include include/default_mysqld.cnf
!include ../my_1_1.cnf
!include ../my_2_1.cnf

36
storage/spider/mysql-test/spider/bugfix/t/mdev_28854.test Normal file
View file

@ -0,0 +1,36 @@
--echo #
--echo # MDEV-28854 Spider: Disallow INSERT DELAYED on Spider table
--echo #
--disable_query_log
--disable_result_log
--source ../../t/test_init.inc
--enable_result_log
--enable_query_log
--connection child2_1
CREATE DATABASE auto_test_remote;
USE auto_test_remote;
CREATE TABLE tbl_a (id INT);
--connection master_1
CREATE DATABASE auto_test_local;
USE auto_test_local;
eval CREATE TABLE tbl_a (
id INT
) $MASTER_1_ENGINE $MASTER_1_CHARSET COMMENT='table "tbl_a", srv "s_2_1"';
--connection master_1
--error ER_DELAYED_NOT_SUPPORTED
INSERT DELAYED INTO tbl_a VALUES (1);
--connection master_1
DROP DATABASE IF EXISTS auto_test_local;
--connection child2_1
DROP DATABASE IF EXISTS auto_test_remote;
--disable_query_log
--disable_result_log
--source ../t/test_deinit.inc
--enable_query_log
--enable_result_log

3
storage/spider/spd_db_conn.h
View file

@ -33,7 +33,6 @@
#define SPIDER_DB_INSERT_IGNORE (1 << 1)
#define SPIDER_DB_INSERT_LOW_PRIORITY (1 << 2)
#define SPIDER_DB_INSERT_HIGH_PRIORITY (1 << 3)
#define SPIDER_DB_INSERT_DELAYED (1 << 4)
#define SPIDER_SQL_OPEN_PAREN_STR "("
#define SPIDER_SQL_OPEN_PAREN_LEN (sizeof(SPIDER_SQL_OPEN_PAREN_STR) - 1)
@ -75,8 +74,6 @@
#define SPIDER_SQL_HIGH_PRIORITY_LEN (sizeof(SPIDER_SQL_HIGH_PRIORITY_STR) - 1)
#define SPIDER_SQL_LOW_PRIORITY_STR "low_priority "
#define SPIDER_SQL_LOW_PRIORITY_LEN (sizeof(SPIDER_SQL_LOW_PRIORITY_STR) - 1)
#define SPIDER_SQL_SQL_DELAYED_STR "delayed "
#define SPIDER_SQL_SQL_DELAYED_LEN (sizeof(SPIDER_SQL_SQL_DELAYED_STR) - 1)
#define SPIDER_SQL_SQL_IGNORE_STR "ignore "
#define SPIDER_SQL_SQL_IGNORE_LEN (sizeof(SPIDER_SQL_SQL_IGNORE_STR) - 1)
#define SPIDER_SQL_FROM_STR " from "

16
storage/spider/spd_db_mysql.cc
View file

@ -8044,7 +8044,6 @@ int spider_mbase_handler::append_insert(
spider_string *str,
int link_idx
) {
SPIDER_SHARE *share = spider->share;
DBUG_ENTER("spider_mbase_handler::append_insert");
if (
(
@ -8069,15 +8068,6 @@ int spider_mbase_handler::append_insert(
DBUG_RETURN(HA_ERR_OUT_OF_MEM);
str->q_append(SPIDER_SQL_LOW_PRIORITY_STR, SPIDER_SQL_LOW_PRIORITY_LEN);
}
else if (spider->insert_delayed)
{
if (share->internal_delayed)
{
if (str->reserve(SPIDER_SQL_SQL_DELAYED_LEN))
DBUG_RETURN(HA_ERR_OUT_OF_MEM);
str->q_append(SPIDER_SQL_SQL_DELAYED_STR, SPIDER_SQL_SQL_DELAYED_LEN);
}
}
else if (
spider->lock_type >= TL_WRITE &&
!spider->write_can_replace &&
@ -14667,12 +14657,6 @@ int spider_mbase_copy_table::append_insert_str(
DBUG_RETURN(HA_ERR_OUT_OF_MEM);
sql.q_append(SPIDER_SQL_LOW_PRIORITY_STR, SPIDER_SQL_LOW_PRIORITY_LEN);
}
else if (insert_flg & SPIDER_DB_INSERT_DELAYED)
{
if (sql.reserve(SPIDER_SQL_SQL_DELAYED_LEN))
DBUG_RETURN(HA_ERR_OUT_OF_MEM);
sql.q_append(SPIDER_SQL_SQL_DELAYED_STR, SPIDER_SQL_SQL_DELAYED_LEN);
}
else if (insert_flg & SPIDER_DB_INSERT_HIGH_PRIORITY)
{
if (sql.reserve(SPIDER_SQL_HIGH_PRIORITY_LEN))

1
storage/spider/spd_include.h
View file

@ -951,7 +951,6 @@ typedef struct st_spider_share
int selupd_lock_mode;
int query_cache;
int query_cache_sync;
int internal_delayed;
int bulk_size;
int bulk_update_mode;
int bulk_update_size;

6
storage/spider/spd_table.cc
View file

@ -2035,7 +2035,6 @@ int spider_parse_connect_info(
share->selupd_lock_mode = -1;
share->query_cache = -1;
share->query_cache_sync = -1;
share->internal_delayed = -1;
share->bulk_size = -1;
share->bulk_update_mode = -1;
share->bulk_update_size = -1;
@ -2259,7 +2258,6 @@ int spider_parse_connect_info(
SPIDER_PARAM_STR_LIST("hws", hs_write_socks);
#endif
SPIDER_PARAM_INT("isa", init_sql_alloc_size, 0);
SPIDER_PARAM_INT_WITH_MAX("idl", internal_delayed, 0, 1);
SPIDER_PARAM_LONGLONG("ilm", internal_limit, 0);
SPIDER_PARAM_LONGLONG("ios", internal_offset, 0);
SPIDER_PARAM_INT_WITH_MAX("iom", internal_optimize, 0, 1);
@ -2484,8 +2482,6 @@ int spider_parse_connect_info(
"multi_split_read", multi_split_read, 0, 2147483647);
SPIDER_PARAM_INT_WITH_MAX(
"selupd_lock_mode", selupd_lock_mode, 0, 2);
SPIDER_PARAM_INT_WITH_MAX(
"internal_delayed", internal_delayed, 0, 1);
SPIDER_PARAM_INT_WITH_MAX(
"table_count_mode", table_count_mode, 0, 3);
SPIDER_PARAM_INT_WITH_MAX(
@ -3809,8 +3805,6 @@ int spider_set_connect_info_default(
share->query_cache = 0;
if (share->query_cache_sync == -1)
share->query_cache_sync = 0;
if (share->internal_delayed == -1)
share->internal_delayed = 0;
if (share->bulk_size == -1)
share->bulk_size = 16000;
if (share->bulk_update_mode == -1)