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Commit b4fb15cc authored by Marko Mäkelä's avatar Marko Mäkelä
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MDEV-16664: Remove innodb_lock_schedule_algorithm 

The setting innodb_lock_schedule_algorithm=VATS that was introduced
in MDEV-11039 (commit 021212b5)
causes conflicting exclusive locks to be incorrectly granted to
two transactions. Specifically, in lock_rec_insert_by_trx_age()
the predicate !lock_rec_has_to_wait_in_queue(in_lock) would hold even
though an active transaction is already holding an exclusive lock.
This was observed between two DELETE of the same clustered index record.
The HASH_DELETE invocation in lock_rec_enqueue_waiting() may be related.

Due to lack of progress in diagnosing the problem, we will remove the
option. The unsafe option was enabled by default between
commit 0c15d1a6 (MariaDB 10.2.3)
and the parent of
commit 1cc1d042 (MariaDB 10.2.17, 10.3.9),
and it was deprecated in
commit 295e2d50 (MariaDB 10.2.34).
parent 3b72b35a
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Showing with 32 additions and 702 deletions
mysql-test/suite/galera/galera_2nodes.cnf
View file @ b4fb15cc
......@@ -10,9 +10,6 @@ wsrep-provider=@ENV.WSREP_PROVIDER
wsrep_node_address=127.0.0.1
# enforce read-committed characteristics across the cluster
wsrep-sync-wait=15
# lock schedule alg appears to be VATS by default, and it is not
# yet compatible with galera
innodb_lock_schedule_algorithm=FCFS
[mysqld.1]
loose-innodb
......@@ -28,9 +25,6 @@ wsrep_sst_receive_address='127.0.0.1:@mysqld.1.#sst_port'
# enforce read-committed characteristics across the cluster
wsrep_causal_reads=ON
wsrep_sync_wait = 15
# lock schedule alg appears to be VATS by default, and it is not
# yet compatible with galera
innodb_lock_schedule_algorithm=FCFS
[mysqld.2]
loose-innodb
......@@ -54,9 +48,6 @@ wsrep_sst_receive_address='127.0.0.2:@mysqld.2.#sst_port'
# enforce read-committed characteristics across the cluster
wsrep_causal_reads=ON
wsrep_sync_wait = 15
# lock schedule alg appears to be VATS by default, and it is not
# yet compatible with galera
innodb_lock_schedule_algorithm=FCFS
[ENV]
NODE_MYPORT_1= @mysqld.1.port
......
mysql-test/suite/galera/galera_2nodes_as_master.cnf
View file @ b4fb15cc
......@@ -11,9 +11,6 @@ log-bin=mysqld-bin
binlog-format=row
innodb-autoinc-lock-mode=2
default-storage-engine=innodb
# lock schedule alg appears to be VATS by default, and it is not
# yet compatible with galera
innodb_lock_schedule_algorithm=FCFS
[mysqld.1]
#galera_port=@OPT.port
......@@ -33,9 +30,6 @@ wsrep_node_incoming_address=127.0.0.1:@mysqld.1.port
# enforce read-committed characteristics across the cluster
wsrep-causal-reads=ON
wsrep-sync-wait=15
# lock schedule alg appears to be VATS by default, and it is not
# yet compatible with galera
innodb_lock_schedule_algorithm=FCFS
[mysqld.2]
#galera_port=@OPT.port
......@@ -55,15 +49,9 @@ wsrep_node_incoming_address=127.0.0.1:@mysqld.2.port
# enforce read-committed characteristics across the cluster
wsrep-causal-reads=ON
wsrep-sync-wait=15
# lock schedule alg appears to be VATS by default, and it is not
# yet compatible with galera
innodb_lock_schedule_algorithm=FCFS
[mysqld.3]
server-id=3
# lock schedule alg appears to be VATS by default, and it is not
# yet compatible with galera
innodb_lock_schedule_algorithm=FCFS
[ENV]
NODE_MYPORT_1= @mysqld.1.port
......
mysql-test/suite/galera/galera_2nodes_as_slave.cnf
View file @ b4fb15cc
......@@ -31,9 +31,6 @@ wsrep_sst_receive_address='127.0.0.1:@mysqld.1.#sst_port'
wsrep-causal-reads=ON
wsrep-sync-wait=15
server-id=1
# lock schedule alg appears to be VATS by default, and it is not
# yet compatible with galera
innodb_lock_schedule_algorithm=FCFS
[mysqld.2]
#galera_port=@OPT.port
......
mysql-test/suite/galera/galera_3nodes_as_slave.cnf
View file @ b4fb15cc
......@@ -8,9 +8,6 @@
[mysqld]
log-bin
binlog-format=row
# lock schedule alg appears to be VATS by default, and it is not
# yet compatible with galera
innodb_lock_schedule_algorithm=FCFS
[mysqld.1]
#galera_port=@OPT.port
......@@ -34,9 +31,6 @@ wsrep_sst_receive_address='127.0.0.1:@mysqld.1.#sst_port'
wsrep-causal-reads=ON
wsrep-sync-wait=15
server-id=1
# lock schedule alg appears to be VATS by default, and it is not
# yet compatible with galera
innodb_lock_schedule_algorithm=FCFS
[mysqld.2]
#galera_port=@OPT.port
......@@ -60,9 +54,6 @@ wsrep_sst_receive_address='127.0.0.1:@mysqld.2.#sst_port'
wsrep-causal-reads=ON
wsrep-sync-wait=15
server-id=2
# lock schedule alg appears to be VATS by default, and it is not
# yet compatible with galera
innodb_lock_schedule_algorithm=FCFS
[mysqld.3]
#galera_port=@OPT.port
......@@ -86,15 +77,9 @@ wsrep_sst_receive_address='127.0.0.1:@mysqld.3.#sst_port'
wsrep-causal-reads=ON
wsrep-sync-wait=15
server-id=3
# lock schedule alg appears to be VATS by default, and it is not
# yet compatible with galera
innodb_lock_schedule_algorithm=FCFS
[mysqld.4]
server-id=4
# lock schedule alg appears to be VATS by default, and it is not
# yet compatible with galera
innodb_lock_schedule_algorithm=FCFS
[ENV]
NODE_MYPORT_1= @mysqld.1.port
......
mysql-test/suite/galera/galera_4nodes.cnf
View file @ b4fb15cc
......@@ -10,9 +10,6 @@ wsrep_node_address=127.0.0.1
# enforce read-committed characteristics across the cluster
wsrep-causal-reads=ON
wsrep-sync-wait=15
# lock schedule alg appears to be VATS by default, and it is not
# yet compatible with galera
innodb_lock_schedule_algorithm=FCFS
[mysqld.1]
#galera_port=@OPT.port
......@@ -23,9 +20,6 @@ wsrep-cluster-address=gcomm://
wsrep_provider_options='base_port=@mysqld.1.#galera_port;gcache.size=10M'
wsrep_node_incoming_address=127.0.0.1:@mysqld.1.port
wsrep_sst_receive_address='127.0.0.1:@mysqld.1.#sst_port'
# lock schedule alg appears to be VATS by default, and it is not
# yet compatible with galera
innodb_lock_schedule_algorithm=FCFS
[mysqld.2]
#galera_port=@OPT.port
......@@ -36,9 +30,6 @@ wsrep_cluster_address='gcomm://127.0.0.1:@mysqld.1.#galera_port'
wsrep_provider_options='base_port=@mysqld.2.#galera_port;gcache.size=10M'
wsrep_node_incoming_address=127.0.0.1:@mysqld.2.port
wsrep_sst_receive_address='127.0.0.1:@mysqld.2.#sst_port'
# lock schedule alg appears to be VATS by default, and it is not
# yet compatible with galera
innodb_lock_schedule_algorithm=FCFS
[mysqld.3]
......@@ -50,9 +41,6 @@ wsrep_cluster_address='gcomm://127.0.0.1:@mysqld.1.#galera_port'
wsrep_provider_options='base_port=@mysqld.3.#galera_port;gcache.size=10M'
wsrep_node_incoming_address=127.0.0.1:@mysqld.3.port
wsrep_sst_receive_address='127.0.0.1:@mysqld.3.#sst_port'
# lock schedule alg appears to be VATS by default, and it is not
# yet compatible with galera
innodb_lock_schedule_algorithm=FCFS
[mysqld.4]
......@@ -64,9 +52,6 @@ wsrep_cluster_address='gcomm://127.0.0.1:@mysqld.1.#galera_port'
wsrep_provider_options='base_port=@mysqld.4.#galera_port;gcache.size=10M'
wsrep_node_incoming_address=127.0.0.1:@mysqld.4.port
wsrep_sst_receive_address='127.0.0.1:@mysqld.4.#sst_port'
# lock schedule alg appears to be VATS by default, and it is not
# yet compatible with galera
innodb_lock_schedule_algorithm=FCFS
[ENV]
NODE_MYPORT_1= @mysqld.1.port
......
mysql-test/suite/innodb/r/innodb-lock-schedule-algorithm.result deleted 100644 → 0
View file @ 3b72b35a
CREATE TABLE t1 (i1 INT) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1),(2);
CREATE TABLE t2 (i2 int) ENGINE=MyISAM;
BEGIN;
DELETE FROM t1;
connect con1,localhost,root,,test;
connection con1;
BEGIN;
INSERT INTO t2 VALUES (1),(2);
SELECT * from t1;
i1
1
2
UPDATE t1 SET i1 = 1;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
COMMIT;
connection default;
COMMIT;
SELECT * FROM t1;
i1
SELECT * FROM t2;
i2
1
2
DROP TABLE t1, t2;
disconnect con1;
CREATE TABLE t1 (i1 INT) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1),(2);
CREATE TABLE t2 (i2 int) ENGINE=MyISAM;
BEGIN;
DELETE FROM t1;
connect con1,localhost,root,,test;
connection con1;
BEGIN;
INSERT INTO t2 VALUES (1),(2);
SELECT * FROM t1;
i1
1
2
UPDATE t1 SET i1 = 1;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
connection default;
COMMIT;
connection con1;
COMMIT;
connection default;
SELECT * FROM t1;
i1
SELECT * FROM t2;
i2
1
2
DROP TABLE t1, t2;
disconnect con1;
# "restart: --loose-innodb-lock-schedule-algorithm=FCFS"
# restart: --loose_innodb_lock_schedule_algorithm=FCFS
CREATE TABLE t1 (i1 INT) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1),(2);
CREATE TABLE t2 (i2 int) ENGINE=MyISAM;
BEGIN;
DELETE FROM t1;
connect con1,localhost,root,,test;
connection con1;
BEGIN;
INSERT INTO t2 VALUES (1),(2);
SELECT * from t1;
i1
1
2
UPDATE t1 SET i1 = 1;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
COMMIT;
connection default;
COMMIT;
SELECT * FROM t1;
i1
SELECT * FROM t2;
i2
1
2
DROP TABLE t1, t2;
disconnect con1;
CREATE TABLE t1 (i1 INT) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1),(2);
CREATE TABLE t2 (i2 int) ENGINE=MyISAM;
BEGIN;
DELETE FROM t1;
connect con1,localhost,root,,test;
connection con1;
BEGIN;
INSERT INTO t2 VALUES (1),(2);
SELECT * FROM t1;
i1
1
2
UPDATE t1 SET i1 = 1;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
connection default;
COMMIT;
connection con1;
COMMIT;
connection default;
SELECT * FROM t1;
i1
SELECT * FROM t2;
i2
1
2
DROP TABLE t1, t2;
disconnect con1;
mysql-test/suite/innodb/t/innodb-lock-schedule-algorithm.opt deleted 100644 → 0
View file @ 3b72b35a
--loose-innodb-lock-wait-timeout=1
--loose-innodb-lock-schedule-algorithm=VATS
mysql-test/suite/innodb/t/innodb-lock-schedule-algorithm.test deleted 100644 → 0
View file @ 3b72b35a
--source include/have_innodb.inc
CREATE TABLE t1 (i1 INT) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1),(2);
CREATE TABLE t2 (i2 int) ENGINE=MyISAM;
BEGIN;
DELETE FROM t1;
--connect (con1,localhost,root,,test)
connection con1;
BEGIN;
INSERT INTO t2 VALUES (1),(2);
SELECT * from t1;
--error 1205
UPDATE t1 SET i1 = 1;
COMMIT;
connection default;
COMMIT;
SELECT * FROM t1;
SELECT * FROM t2;
DROP TABLE t1, t2;
disconnect con1;
CREATE TABLE t1 (i1 INT) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1),(2);
CREATE TABLE t2 (i2 int) ENGINE=MyISAM;
BEGIN;
DELETE FROM t1;
--connect (con1,localhost,root,,test)
connection con1;
BEGIN;
INSERT INTO t2 VALUES (1),(2);
SELECT * FROM t1;
--error 1205
UPDATE t1 SET i1 = 1;
connection default;
COMMIT;
connection con1;
COMMIT;
connection default;
SELECT * FROM t1;
SELECT * FROM t2;
DROP TABLE t1, t2;
disconnect con1;
--echo # "restart: --loose-innodb-lock-schedule-algorithm=FCFS"
--let $restart_parameters=--loose_innodb_lock_schedule_algorithm=FCFS
-- source include/restart_mysqld.inc
CREATE TABLE t1 (i1 INT) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1),(2);
CREATE TABLE t2 (i2 int) ENGINE=MyISAM;
BEGIN;
DELETE FROM t1;
--connect (con1,localhost,root,,test)
connection con1;
BEGIN;
INSERT INTO t2 VALUES (1),(2);
SELECT * from t1;
--error 1205
UPDATE t1 SET i1 = 1;
COMMIT;
connection default;
COMMIT;
SELECT * FROM t1;
SELECT * FROM t2;
DROP TABLE t1, t2;
disconnect con1;
CREATE TABLE t1 (i1 INT) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1),(2);
CREATE TABLE t2 (i2 int) ENGINE=MyISAM;
BEGIN;
DELETE FROM t1;
--connect (con1,localhost,root,,test)
connection con1;
BEGIN;
INSERT INTO t2 VALUES (1),(2);
SELECT * FROM t1;
--error 1205
UPDATE t1 SET i1 = 1;
connection default;
COMMIT;
connection con1;
COMMIT;
connection default;
SELECT * FROM t1;
SELECT * FROM t2;
DROP TABLE t1, t2;
disconnect con1;
mysql-test/suite/innodb/t/innodb_trx_weight.opt deleted 100644 → 0
View file @ 3b72b35a
--loose-innodb-lock-schedule-algorithm=FCFS
mysql-test/suite/sys_vars/r/sysvars_innodb.result
View file @ b4fb15cc
......@@ -1029,18 +1029,6 @@ NUMERIC_BLOCK_SIZE 0
ENUM_VALUE_LIST NULL
READ_ONLY NO
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME INNODB_LOCK_SCHEDULE_ALGORITHM
SESSION_VALUE NULL
DEFAULT_VALUE fcfs
VARIABLE_SCOPE GLOBAL
VARIABLE_TYPE ENUM
VARIABLE_COMMENT The algorithm Innodb uses for deciding which locks to grant next when a lock is released. Possible values are FCFS grant the locks in First-Come-First-Served order; VATS use the Variance-Aware-Transaction-Scheduling algorithm, which uses an Eldest-Transaction-First heuristic.
NUMERIC_MIN_VALUE NULL
NUMERIC_MAX_VALUE NULL
NUMERIC_BLOCK_SIZE NULL
ENUM_VALUE_LIST fcfs,vats
READ_ONLY YES
COMMAND_LINE_ARGUMENT REQUIRED
VARIABLE_NAME INNODB_LOCK_WAIT_TIMEOUT
SESSION_VALUE 50
DEFAULT_VALUE 50
......
sql/mysqld.cc
View file @ b4fb15cc
......@@ -5043,6 +5043,7 @@ static int init_server_components()
MARIADB_REMOVED_OPTION("innodb-concurrency-tickets"),
MARIADB_REMOVED_OPTION("innodb-file-format"),
MARIADB_REMOVED_OPTION("innodb-large-prefix"),
MARIADB_REMOVED_OPTION("innodb-lock-schedule-algorithm"),
MARIADB_REMOVED_OPTION("innodb-log-checksums"),
MARIADB_REMOVED_OPTION("innodb-log-compressed-pages"),
MARIADB_REMOVED_OPTION("innodb-log-files-in-group"),
......
sql/sql_class.cc
View file @ b4fb15cc
......@@ -5037,15 +5037,6 @@ extern "C" enum enum_server_command thd_current_command(MYSQL_THD thd)
return thd->get_command();
}
extern "C" int thd_slave_thread(const MYSQL_THD thd)
{
return(thd->slave_thread);
}
/* Returns high resolution timestamp for the start
of the current query. */
extern "C" unsigned long long thd_start_utime(const MYSQL_THD thd)
......
sql/wsrep_var.cc
View file @ b4fb15cc
......@@ -97,12 +97,6 @@ static void wsrep_set_wsrep_on()
strcmp(wsrep_provider, WSREP_NONE);
}
/* This is intentionally declared as a weak global symbol, so that
linking will succeed even if the server is built with a dynamically
linked InnoDB. */
ulong innodb_lock_schedule_algorithm __attribute__((weak));
struct handlerton* innodb_hton_ptr __attribute__((weak));
bool wsrep_on_update (sys_var *self, THD* thd, enum_var_type var_type)
{
if (var_type == OPT_GLOBAL) {
......@@ -138,18 +132,7 @@ bool wsrep_on_update (sys_var *self, THD* thd, enum_var_type var_type)
bool wsrep_on_check(sys_var *self, THD* thd, set_var* var)
{
bool new_wsrep_on= (bool)var->save_result.ulonglong_value;
if (check_has_super(self, thd, var))
return true;
if (new_wsrep_on && innodb_hton_ptr && innodb_lock_schedule_algorithm != 0) {
my_message(ER_WRONG_ARGUMENTS, " WSREP (galera) can't be enabled "
"if innodb_lock_schedule_algorithm=VATS. Please configure"
" innodb_lock_schedule_algorithm=FCFS and restart.", MYF(0));
return true;
}
return false;
return check_has_super(self, thd, var);
}
bool wsrep_causal_reads_update (sys_var *self, THD* thd, enum_var_type var_type)
......
storage/innobase/handler/ha_innodb.cc
View file @ b4fb15cc
......@@ -326,22 +326,6 @@ static TYPELIB innodb_default_row_format_typelib = {
NULL
};
/** Possible values of the parameter innodb_lock_schedule_algorithm */
static const char* innodb_lock_schedule_algorithm_names[] = {
"fcfs",
"vats",
NullS
};
/** Used to define an enumerate type of the system variable
innodb_lock_schedule_algorithm. */
static TYPELIB innodb_lock_schedule_algorithm_typelib = {
array_elements(innodb_lock_schedule_algorithm_names) - 1,
"innodb_lock_schedule_algorithm_typelib",
innodb_lock_schedule_algorithm_names,
NULL
};
/** Names of allowed values of innodb_flush_method */
const char* innodb_flush_method_names[] = {
"fsync",
......@@ -1400,18 +1384,6 @@ innodb_page_size_validate(
DBUG_RETURN(0);
}
/******************************************************************//**
Returns true if the thread is the replication thread on the slave
server.
@return true if thd is the replication thread */
ibool
thd_is_replication_slave_thread(
/*============================*/
THD* thd) /*!< in: thread handle */
{
return thd && ((ibool) thd_slave_thread(thd));
}
/******************************************************************//**
Returns true if transaction should be flagged as read-only.
@return true if the thd is marked as read-only */
......@@ -3205,15 +3177,6 @@ static int innodb_init_params()
DBUG_RETURN(HA_ERR_INITIALIZATION);
}
#ifdef WITH_WSREP
/* Currently, Galera does not support VATS lock schedule algorithm. */
if (innodb_lock_schedule_algorithm == INNODB_LOCK_SCHEDULE_ALGORITHM_VATS
&& global_system_variables.wsrep_on) {
ib::info() << "For Galera, using innodb_lock_schedule_algorithm=fcfs";
innodb_lock_schedule_algorithm = INNODB_LOCK_SCHEDULE_ALGORITHM_FCFS;
}
#endif /* WITH_WSREP */
#ifndef HAVE_LZ4
if (innodb_compression_algorithm == PAGE_LZ4_ALGORITHM) {
sql_print_error("InnoDB: innodb_compression_algorithm = %lu unsupported.\n"
......@@ -18930,18 +18893,6 @@ static MYSQL_SYSVAR_ULONG(doublewrite_batch_size, srv_doublewrite_batch_size,
NULL, NULL, 120, 1, 127, 0);
#endif /* defined UNIV_DEBUG || defined UNIV_PERF_DEBUG */
static MYSQL_SYSVAR_ENUM(lock_schedule_algorithm, innodb_lock_schedule_algorithm,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY,
"The algorithm Innodb uses for deciding which locks to grant next when"
" a lock is released. Possible values are"
" FCFS"
" grant the locks in First-Come-First-Served order;"
" VATS"
" use the Variance-Aware-Transaction-Scheduling algorithm, which"
" uses an Eldest-Transaction-First heuristic.",
NULL, NULL, INNODB_LOCK_SCHEDULE_ALGORITHM_FCFS,
&innodb_lock_schedule_algorithm_typelib);
static MYSQL_SYSVAR_STR(buffer_pool_filename, srv_buf_dump_filename,
PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_MEMALLOC,
"Filename to/from which to dump/load the InnoDB buffer pool",
......@@ -19639,7 +19590,6 @@ static struct st_mysql_sys_var* innobase_system_variables[]= {
MYSQL_SYSVAR(ft_num_word_optimize),
MYSQL_SYSVAR(ft_sort_pll_degree),
MYSQL_SYSVAR(force_load_corrupted),
MYSQL_SYSVAR(lock_schedule_algorithm),
MYSQL_SYSVAR(lock_wait_timeout),
MYSQL_SYSVAR(deadlock_detect),
MYSQL_SYSVAR(page_size),
......
storage/innobase/handler/ha_innodb.h
View file @ b4fb15cc
......@@ -530,12 +530,6 @@ the definitions are bracketed with #ifdef INNODB_COMPATIBILITY_HOOKS */
extern "C" {
/** Check if a user thread is a replication slave thread
@param thd user thread
@retval 0 the user thread is not a replication slave thread
@retval 1 the user thread is a replication slave thread */
int thd_slave_thread(const MYSQL_THD thd);
/** Check if a user thread is running a non-transactional update
@param thd user thread
@retval 0 the user thread is not running a non-transactional update
......
storage/innobase/include/ha_prototypes.h
View file @ b4fb15cc
......@@ -108,15 +108,6 @@ innobase_convert_name(
ulint idlen, /*!< in: length of id, in bytes */
THD* thd); /*!< in: MySQL connection thread, or NULL */
/******************************************************************//**
Returns true if the thread is the replication thread on the slave
server.
@return true if thd is the replication thread */
ibool
thd_is_replication_slave_thread(
/*============================*/
THD* thd); /*!< in: thread handle */
/******************************************************************//**
Returns true if the transaction this thread is processing has edited
non-transactional tables. Used by the deadlock detector when deciding
......
storage/innobase/include/lock0lock.h
View file @ b4fb15cc
......@@ -39,17 +39,6 @@ Created 5/7/1996 Heikki Tuuri
#include "gis0rtree.h"
#include "lock0prdt.h"
/** Alternatives for innodb_lock_schedule_algorithm, which can be changed by
setting innodb_lock_schedule_algorithm. */
enum innodb_lock_schedule_algorithm_t {
/*!< First Come First Served */
INNODB_LOCK_SCHEDULE_ALGORITHM_FCFS,
/*!< Variance-Aware-Transaction-Scheduling */
INNODB_LOCK_SCHEDULE_ALGORITHM_VATS
};
extern ulong innodb_lock_schedule_algorithm;
// Forward declaration
class ReadView;
......
storage/innobase/lock/lock0lock.cc
View file @ b4fb15cc
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