Commit 3e807d25 authored by Sergei Petrunia's avatar Sergei Petrunia Committed by Daniel Black

MDEV-23938: innodb row_search_idx_cond_check handle ICP_ABORTED_BY_USER

- row_search_mvcc() should return DB_INTERRUPTED when it got killed.
- Add a syncpoint for the ICP check.
- Add test coverage for killed-during-ICP-check scenario

Backport of MDEV-22761 fixes for ICP from 10.4 commits:
* a6f95648
* c03885cd

XtraDB was fixed in deb3b9a1

Reviewer: Daniel Black
parent 72cb2082
--source include/have_debug.inc
--source include/have_debug_sync.inc
--source include/count_sessions.inc
--disable_warnings
drop table if exists t0,t1,t2;
--enable_warnings
create table t0(a int primary key);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1(a int primary key);
insert into t1 select A.a + B.a* 10 + C.a * 100 from t0 A, t0 B, t0 C;
create table t2 (
kp1 int,
kp2 int,
col char(100),
key(kp1, kp2)
);
insert into t2 select a, a, a from t1;
select engine from information_schema.tables
where table_schema=database() and table_name='t2';
explain
select * from t2 where kp1 between 10 and 20 and kp2 +1 >100;
let $target_id= `select connection_id()`;
set debug_sync='handler_index_cond_check SIGNAL at_icp_check WAIT_FOR go';
send
select * from t2 where kp1 between 10 and 20 and kp2 +1 >100;
connect (con1, localhost, root,,);
connection con1;
set debug_sync='now WAIT_FOR at_icp_check';
evalp kill query $target_id;
set debug_sync='now SIGNAL go';
connection default;
--error ER_QUERY_INTERRUPTED
reap;
set debug_sync='RESET';
disconnect con1;
drop table t0,t1,t2;
--source include/wait_until_count_sessions.inc
set default_storage_engine=aria;
drop table if exists t0,t1,t2;
create table t0(a int primary key);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1(a int primary key);
insert into t1 select A.a + B.a* 10 + C.a * 100 from t0 A, t0 B, t0 C;
create table t2 (
kp1 int,
kp2 int,
col char(100),
key(kp1, kp2)
);
insert into t2 select a, a, a from t1;
select engine from information_schema.tables
where table_schema=database() and table_name='t2';
engine
Aria
explain
select * from t2 where kp1 between 10 and 20 and kp2 +1 >100;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 range kp1 kp1 5 NULL 10 Using index condition
set debug_sync='handler_index_cond_check SIGNAL at_icp_check WAIT_FOR go';
select * from t2 where kp1 between 10 and 20 and kp2 +1 >100;
connect con1, localhost, root,,;
connection con1;
set debug_sync='now WAIT_FOR at_icp_check';
kill query $target_id;
set debug_sync='now SIGNAL go';
connection default;
ERROR 70100: Query execution was interrupted
set debug_sync='RESET';
disconnect con1;
drop table t0,t1,t2;
set default_storage_engine=default;
set default_storage_engine=aria;
--source include/icp_debug_kill.inc
set default_storage_engine=default;
set default_storage_engine=innodb;
drop table if exists t0,t1,t2;
create table t0(a int primary key);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1(a int primary key);
insert into t1 select A.a + B.a* 10 + C.a * 100 from t0 A, t0 B, t0 C;
create table t2 (
kp1 int,
kp2 int,
col char(100),
key(kp1, kp2)
);
insert into t2 select a, a, a from t1;
select engine from information_schema.tables
where table_schema=database() and table_name='t2';
engine
InnoDB
explain
select * from t2 where kp1 between 10 and 20 and kp2 +1 >100;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 range kp1 kp1 5 NULL 11 Using index condition
set debug_sync='handler_index_cond_check SIGNAL at_icp_check WAIT_FOR go';
select * from t2 where kp1 between 10 and 20 and kp2 +1 >100;
connect con1, localhost, root,,;
connection con1;
set debug_sync='now WAIT_FOR at_icp_check';
kill query $target_id;
set debug_sync='now SIGNAL go';
connection default;
ERROR 70100: Query execution was interrupted
set debug_sync='RESET';
disconnect con1;
drop table t0,t1,t2;
set default_storage_engine=default;
--source include/have_innodb.inc
set default_storage_engine=innodb;
--source include/icp_debug_kill.inc
set default_storage_engine=default;
drop table if exists t0,t1,t2;
create table t0(a int primary key);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1(a int primary key);
insert into t1 select A.a + B.a* 10 + C.a * 100 from t0 A, t0 B, t0 C;
create table t2 (
kp1 int,
kp2 int,
col char(100),
key(kp1, kp2)
);
insert into t2 select a, a, a from t1;
select engine from information_schema.tables
where table_schema=database() and table_name='t2';
engine
MyISAM
explain
select * from t2 where kp1 between 10 and 20 and kp2 +1 >100;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 range kp1 kp1 5 NULL 11 Using index condition
set debug_sync='handler_index_cond_check SIGNAL at_icp_check WAIT_FOR go';
select * from t2 where kp1 between 10 and 20 and kp2 +1 >100;
connect con1, localhost, root,,;
connection con1;
set debug_sync='now WAIT_FOR at_icp_check';
kill query $target_id;
set debug_sync='now SIGNAL go';
connection default;
ERROR 70100: Query execution was interrupted
set debug_sync='RESET';
disconnect con1;
drop table t0,t1,t2;
--source include/icp_debug_kill.inc
......@@ -5519,6 +5519,7 @@ extern "C" enum icp_result handler_index_cond_check(void* h_arg)
THD *thd= h->table->in_use;
enum icp_result res;
DEBUG_SYNC(thd, "handler_index_cond_check");
enum thd_kill_levels abort_at= h->has_transactions() ?
THD_ABORT_SOFTLY : THD_ABORT_ASAP;
if (thd_kill_level(thd) > abort_at)
......
......@@ -3588,7 +3588,7 @@ row_sel_try_search_shortcut_for_mysql(
/*********************************************************************//**
Check a pushed-down index condition.
@return ICP_NO_MATCH, ICP_MATCH, or ICP_OUT_OF_RANGE */
@return ICP_ABORTED_BY_USER, ICP_NO_MATCH, ICP_MATCH, or ICP_OUT_OF_RANGE */
static
enum icp_result
row_search_idx_cond_check(
......@@ -4110,10 +4110,13 @@ row_search_for_mysql(
switch (row_search_idx_cond_check(
buf, prebuilt,
rec, offsets)) {
case ICP_NO_MATCH:
case ICP_OUT_OF_RANGE:
case ICP_ABORTED_BY_USER:
mtr_commit(&mtr);
err = DB_INTERRUPTED;
goto release_search_latch_if_needed;
case ICP_ERROR:
case ICP_NO_MATCH:
case ICP_OUT_OF_RANGE:
goto shortcut_mismatch;
case ICP_MATCH:
goto shortcut_match;
......@@ -4849,8 +4852,10 @@ row_search_for_mysql(
buf, prebuilt, rec, offsets)) {
case ICP_NO_MATCH:
goto next_rec;
case ICP_OUT_OF_RANGE:
case ICP_ABORTED_BY_USER:
err = DB_INTERRUPTED;
goto idx_cond_failed;
case ICP_OUT_OF_RANGE:
case ICP_ERROR:
err = DB_RECORD_NOT_FOUND;
goto idx_cond_failed;
......@@ -4904,9 +4909,11 @@ row_search_for_mysql(
row_unlock_for_mysql(prebuilt, TRUE);
}
goto next_rec;
case ICP_ABORTED_BY_USER:
err = DB_INTERRUPTED;
goto idx_cond_failed;
case ICP_OUT_OF_RANGE:
case ICP_ABORTED_BY_USER:
case ICP_ERROR:
case ICP_ERROR:
err = DB_RECORD_NOT_FOUND;
goto idx_cond_failed;
case ICP_MATCH:
......
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