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Commit a70a47f2 authored by Marko Mäkelä's avatar Marko Mäkelä
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MDEV-24661: Remove the test innodb.innodb_wl6326_big 

The purpose of the test was to ensure that the SX (update) mode of
index tree and buffer page latches are being used.

The test has become unstable, possibly due to changes related to
buf_pool.mutex and buf_pool.page_hash, or to the use of MDL in the
purge of transaction history.

In 10.6, the test depends on instrumentation that was refactored
or removed in MDEV-24142.

The use of different latching modes can better be indirectly observed
through high-concurrency benchmarks. For MDEV-14637, a performance test
was conducted where the finer-grained latching and
BTR_CUR_FINE_HISTORY_LENGTH were removed. It caused a 20% performance
regression for UPDATE and somewhat smaller for INSERT.

Any new problem with latching granularity should be easily caught by
performance testing, or by stress tests with Random Query Generator.
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mysql-test/suite/innodb/disabled.def
View file @ a70a47f2
...@@ -11,4 +11,3 @@ ...@@ -11,4 +11,3 @@
############################################################################## ##############################################################################
create-index-debug : MDEV-13680 InnoDB may crash when btr_page_alloc() fails create-index-debug : MDEV-13680 InnoDB may crash when btr_page_alloc() fails
innodb_wl6326_big : MDEV-24661 frequent timeouts
mysql-test/suite/innodb/r/innodb_wl6326_big.result deleted 100644 → 0
View file @ d8373fea
CREATE SCHEMA my_schema;
USE my_schema;
CREATE FUNCTION f_thread_id (i INT) RETURNS CHAR(4) DETERMINISTIC
RETURN CONCAT(LPAD(CAST(i AS CHAR),3,'_'),'_') ;
SELECT CONCAT('->', f_thread_id( 1), '<-');
CONCAT('->', f_thread_id( 1), '<-')
->__1_<-
SELECT CONCAT('->', f_thread_id(12), '<-');
CONCAT('->', f_thread_id(12), '<-')
->_12_<-
SET @extra_int = 1;
SET @extra_string = f_thread_id(@extra_int);
SELECT @extra_int , @extra_string;
@extra_int @extra_string
1 __1_
CREATE FUNCTION f_col_int1 (i INT) RETURNS INT(20) DETERMINISTIC
RETURN i * 1000 + @extra_int ;
SELECT f_col_int1(my_col) AS my_result
FROM (SELECT 1 AS my_col UNION SELECT 12 UNION SELECT 123
UNION SELECT 1234 UNION SELECT 12345) AS tx;
my_result
1001
12001
123001
1234001
12345001
CREATE FUNCTION f_col_int2 (i INT) RETURNS INT(20) DETERMINISTIC
RETURN @extra_int * 10000000 + i ;
SELECT f_col_int2(my_col) AS my_result
FROM (SELECT 1 AS my_col UNION SELECT 12 UNION SELECT 123
UNION SELECT 1234 UNION SELECT 12345) AS tx;
my_result
10000001
10000012
10000123
10001234
10012345
CREATE FUNCTION f_col_int3 (i INT) RETURNS INT(20) DETERMINISTIC
RETURN @extra_int ;
SELECT f_col_int3(my_col) AS my_result
FROM (SELECT 1 AS my_col UNION SELECT 12 UNION SELECT 123
UNION SELECT 1234 UNION SELECT 12345) AS tx;
my_result
1
1
1
1
1
CREATE FUNCTION f_col_blob (i INT) RETURNS BLOB DETERMINISTIC
RETURN RPAD(@extra_string,(@@innodb_page_size / 2 ) + 1,'a');
SELECT CONCAT('->', SUBSTR(f_col_blob(my_col) FROM 1 FOR 10),
'<-.....->', SUBSTR(f_col_blob(my_col) FROM -10 FOR 10), '<-') AS my_result
FROM (SELECT 1 AS my_col UNION SELECT 12 UNION SELECT 123
UNION SELECT 1234 UNION SELECT 12345) AS tx;
my_result
->__1_aaaaaa<-.....->aaaaaaaaaa<-
->__1_aaaaaa<-.....->aaaaaaaaaa<-
->__1_aaaaaa<-.....->aaaaaaaaaa<-
->__1_aaaaaa<-.....->aaaaaaaaaa<-
->__1_aaaaaa<-.....->aaaaaaaaaa<-
CREATE FUNCTION f_col_char0 (i INT) RETURNS CHAR(255) DETERMINISTIC
RETURN LPAD(CAST(i AS CHAR),255,' ');
SELECT CONCAT('->', f_col_char0(my_col), '<-') AS my_result
FROM (SELECT 1 AS my_col UNION SELECT 12 UNION SELECT 123
UNION SELECT 1234 UNION SELECT 12345) AS tx;
my_result
-> 1<-
-> 12<-
-> 123<-
-> 1234<-
-> 12345<-
CREATE FUNCTION f_col_char1 (i INT) RETURNS CHAR(26) DETERMINISTIC
RETURN
CONCAT('B',
LPAD(SUBSTR(CAST(i AS CHAR),1,(LENGTH(CAST(i AS CHAR)) DIV 2)),10,' '),
@extra_string,
RPAD(SUBSTR(CAST(i AS CHAR), -((LENGTH(CAST(i AS CHAR)) + 1) DIV 2)),10,' '),
'E') ;
SELECT CONCAT('->', f_col_char1(my_col), '<-') AS my_result
FROM (SELECT 1 AS my_col UNION SELECT 12 UNION SELECT 123
UNION SELECT 1234 UNION SELECT 12345) AS tx;
my_result
->B __1_1 E<-
->B 1__1_2 E<-
->B 1__1_23 E<-
->B 12__1_34 E<-
->B 12__1_345 E<-
CREATE FUNCTION f_col_char2 (i INT) RETURNS CHAR(26) DETERMINISTIC
RETURN
CONCAT('B',
RPAD(SUBSTR(CAST(i AS CHAR),1,(LENGTH(CAST(i AS CHAR)) DIV 2)),10,' '),
@extra_string,
LPAD(SUBSTR(CAST(i AS CHAR), -((LENGTH(CAST(i AS CHAR)) + 1) DIV 2)),10,' '),
'E');
SELECT CONCAT('->', f_col_char2(my_col), '<-') AS my_result
FROM (SELECT 1 AS my_col UNION SELECT 12 UNION SELECT 123
UNION SELECT 1234 UNION SELECT 12345) AS tx;
my_result
->B __1_ 1E<-
->B1 __1_ 2E<-
->B1 __1_ 23E<-
->B12 __1_ 34E<-
->B12 __1_ 345E<-
CREATE FUNCTION f_col_char3 (i INT) RETURNS CHAR(26) DETERMINISTIC
RETURN
CONCAT('B',@extra_string,LPAD(CAST(i AS CHAR),20,' '),'E');
SELECT CONCAT('->', f_col_char3(my_col), '<-') AS my_result
FROM (SELECT 1 AS my_col UNION SELECT 12 UNION SELECT 123
UNION SELECT 1234 UNION SELECT 12345) AS tx;
my_result
->B__1_ 1E<-
->B__1_ 12E<-
->B__1_ 123E<-
->B__1_ 1234E<-
->B__1_ 12345E<-
CREATE FUNCTION f_col_char4 (i INT) RETURNS CHAR(26) DETERMINISTIC
RETURN
CONCAT('B',RPAD(CAST(i AS CHAR),20,' '),@extra_string,'E');
SELECT CONCAT('->', f_col_char4(my_col), '<-') AS my_result
FROM (SELECT 1 AS my_col UNION SELECT 12 UNION SELECT 123
UNION SELECT 1234 UNION SELECT 12345) AS tx;
my_result
->B1 __1_E<-
->B12 __1_E<-
->B123 __1_E<-
->B1234 __1_E<-
->B12345 __1_E<-
CREATE TABLE my_metrics LIKE information_schema.innodb_metrics;
ALTER TABLE my_metrics ADD COLUMN phase ENUM('after', 'before'),
DROP COLUMN SUBSYSTEM, DROP COLUMN TYPE, DROP COLUMN COMMENT,
ADD PRIMARY KEY (NAME,phase);
CREATE TABLE t1 (
col_int0 BIGINT,
col_int1 BIGINT,
col_int2 BIGINT,
col_int3 BIGINT,
col_blob BLOB,
col_char0 VARCHAR(255),
col_char1 VARCHAR(30),
col_char2 VARCHAR(30),
col_char3 VARCHAR(30),
col_char4 VARCHAR(30)
) ENGINE = InnoDB;
ALTER TABLE t1 ADD UNIQUE KEY uidx_col_int0 (col_int0),
ADD UNIQUE KEY uidx1 (col_int1, col_char0),
ADD UNIQUE KEY uidx2 (col_int2, col_char0, col_int1),
ADD UNIQUE KEY uidx3 (col_int3, col_int2, col_char0),
ADD UNIQUE KEY uidx4 (col_char1, col_char0),
ADD UNIQUE KEY uidx5 (col_char2, col_char0, col_char1),
ADD UNIQUE KEY uidx6 (col_char3, col_char2, col_char0),
ADD UNIQUE KEY uidx7 (col_int1, col_int2, col_int3, col_char4,
col_char1, col_char2, col_char3, col_char0),
ADD KEY idx8 (col_blob(10), col_char4);
CREATE PROCEDURE proc_fill_t1 (max_row_count INT, load_unit INT)
BEGIN
DECLARE my_count INTEGER DEFAULT 0;
DECLARE max_load_count INTEGER DEFAULT 0;
DROP TABLE IF EXISTS t0;
CREATE TEMPORARY TABLE t0 (col_int0 BIGINT, PRIMARY KEY(col_int0));
WHILE (my_count < load_unit ) DO
SET my_count = my_count + 1;
INSERT INTO t0 SET col_int0 = my_count;
END WHILE;
SET max_load_count = (SELECT (max_row_count DIV load_unit) + 1 );
SELECT COUNT(col_int0) INTO @val FROM t1;
SET my_count = 0;
REPEAT
INSERT INTO t1 (col_int0, col_int1, col_int2, col_int3, col_blob,
col_char0, col_char1, col_char2,col_char3,col_char4)
SELECT col_int0 + @val,
f_col_int1(col_int0 + @val),
f_col_int2(col_int0 + @val),
f_col_int3(col_int0 + @val),
f_col_blob(col_int0 + @val),
f_col_char0(col_int0 + @val),
f_col_char1(col_int0 + @val),
f_col_char2(col_int0 + @val),
f_col_char3(col_int0 + @val),
f_col_char4(col_int0 + @val)
FROM t0;
COMMIT;
SELECT MAX(col_int0) INTO @val FROM t1;
SET my_count = my_count + 1;
UNTIL( my_count > max_load_count OR @val >= max_row_count )
END REPEAT;
DROP TEMPORARY TABLE t0;
END|
CREATE PROCEDURE proc_dml (max_duration INT, t1_stripe_half INT)
BEGIN
DECLARE aux INTEGER DEFAULT 0;
DECLARE start_time INT;
DECLARE CONTINUE HANDLER FOR SQLEXCEPTION, SQLWARNING, NOT FOUND BEGIN END;
SET @extra_int = CONNECTION_ID();
SET @extra_string = f_thread_id(@extra_int);
SELECT ROUND(MAX(col_int0) / 2 ) INTO @t1_half FROM t1;
# The user lock 'Blocker' should be already set by some other session S1.
# S1 starts the race by releasing that lock.
# Wait till the lock is released and the lock can be obtained.
# In order to prevent endless waiting in case of non foreseen problems
# limit the timespan to 30 seconds.
SELECT GET_LOCK('Blocker', 30) INTO @aux;
# Release the lock immediate so that the other "runner" sessions start too.
SELECT RELEASE_LOCK('Blocker') INTO @aux;
SET start_time = UNIX_TIMESTAMP();
WHILE (UNIX_TIMESTAMP() - start_time < max_duration) DO
SET @aux = @t1_half - t1_stripe_half + ROUND(RAND() * t1_stripe_half * 2);
UPDATE t1 SET
col_int1 = f_col_int1(col_int0),
col_int2 = f_col_int2(col_int0),
col_int3 = f_col_int3(col_int0),
col_blob = f_col_blob(col_int0),
col_char0 = f_col_char0(col_int0),
col_char1 = f_col_char1(col_int0),
col_char2 = f_col_char2(col_int0),
col_char3 = f_col_char3(col_int0),
col_char4 = f_col_char4(col_int0)
WHERE col_int0 = @aux;
COMMIT;
END WHILE;
END|
SET GLOBAL innodb_monitor_disable = "innodb_rwlock_sx_%";
SET @pre_reset_ts = NOW();
SET GLOBAL innodb_monitor_reset = "innodb_rwlock_sx_%";
SET @pre_enable_ts = NOW();
SET GLOBAL innodb_monitor_enable = "innodb_rwlock_sx_%";
SET @pre_collect_ts = NOW();
DELETE FROM my_metrics;
INSERT INTO my_metrics
SELECT NAME, COUNT, MAX_COUNT, MIN_COUNT, AVG_COUNT,
COUNT_RESET, MAX_COUNT_RESET, MIN_COUNT_RESET, AVG_COUNT_RESET,
TIME_ENABLED, TIME_DISABLED, TIME_ELAPSED, TIME_RESET,
ENABLED, 'before'
FROM information_schema.innodb_metrics
WHERE NAME LIKE 'innodb_rwlock_sx_%';
# TC-01 There are exact three entries "innodb_rwlock_sx_%" with the
# with the name which follow in innodb_metrics.
# pass
SELECT COUNT(*) INTO @sx_count FROM my_metrics;
# TC-02 Counting is now enabled. ALL = @sx_count entries show that.
# pass
# TC-03 @pre_reset_ts < TIME_RESET. ALL = @sx_count entries show that.
# pass
# TC-04 @pre_enable_ts < TIME_ENABLED. ALL = @sx_count entries show that.
# pass
# TC-05 TIME_RESET < TIME_ENABLED AND TIME_ENABLED < @pre_collect_ts
# AND TIME_ELAPSED > 0. ALL = @sx_count entries show that.
# pass
# TC-06 COUNT_RESET = MAX_COUNT_RESET. ALL = @sx_count entries show that.
# pass
SET GLOBAL innodb_monitor_reset = "innodb_rwlock_sx_%";
SHOW ENGINE INNODB STATUS;
DELETE FROM my_metrics;
INSERT INTO my_metrics
SELECT NAME, COUNT, MAX_COUNT, MIN_COUNT, AVG_COUNT,
COUNT_RESET, MAX_COUNT_RESET, MIN_COUNT_RESET, AVG_COUNT_RESET,
TIME_ENABLED, TIME_DISABLED, TIME_ELAPSED, TIME_RESET,
ENABLED, 'before'
FROM information_schema.innodb_metrics
WHERE NAME LIKE 'innodb_rwlock_sx_%';
SET @extra_string = '__0_';
SET @extra_int = 0;
# TC-07 One session inserts some significant amount of rows into t1.
# The system MUST survive that.
SET @max_row_count = <max_row_count>;
SET @load_unit = <load_unit>;
SET @start_time = UNIX_TIMESTAMP();
SET AUTOCOMMIT = OFF;
CALL proc_fill_t1 (@max_row_count, @load_unit);
# pass
SET AUTOCOMMIT = ON;
SELECT col_int0 INTO @t1_half FROM t1
WHERE col_int0 >= (@val DIV 2) ORDER BY col_int0 LIMIT 1;
SHOW ENGINE INNODB STATUS;
SELECT col_int0, col_int1, col_int2, col_int3,
CONCAT('->', SUBSTR(col_blob FROM 1 FOR 10),
'<-.....->', SUBSTR(col_blob FROM -10 FOR 10), '<-') AS col_blobx,
CONCAT('->',col_char0,'<-') AS col_char0x,
CONCAT('->',col_char1,'<-') AS col_char1x,
CONCAT('->',col_char2,'<-') AS col_char2x,
CONCAT('->',col_char3,'<-') AS col_char3x,
CONCAT('->',col_char4,'<-') AS col_char4x
FROM t1 WHERE col_int0 between 98 AND 102;
col_int0 98
col_int1 98000
col_int2 98
col_int3 0
col_blobx ->__0_aaaaaa<-.....->aaaaaaaaaa<-
col_char0x -> 98<-
col_char1x ->B 9__0_8 E<-
col_char2x ->B9 __0_ 8E<-
col_char3x ->B__0_ 98E<-
col_char4x ->B98 __0_E<-
col_int0 99
col_int1 99000
col_int2 99
col_int3 0
col_blobx ->__0_aaaaaa<-.....->aaaaaaaaaa<-
col_char0x -> 99<-
col_char1x ->B 9__0_9 E<-
col_char2x ->B9 __0_ 9E<-
col_char3x ->B__0_ 99E<-
col_char4x ->B99 __0_E<-
col_int0 100
col_int1 100000
col_int2 100
col_int3 0
col_blobx ->__0_aaaaaa<-.....->aaaaaaaaaa<-
col_char0x -> 100<-
col_char1x ->B 1__0_00 E<-
col_char2x ->B1 __0_ 00E<-
col_char3x ->B__0_ 100E<-
col_char4x ->B100 __0_E<-
col_int0 101
col_int1 101000
col_int2 101
col_int3 0
col_blobx ->__0_aaaaaa<-.....->aaaaaaaaaa<-
col_char0x -> 101<-
col_char1x ->B 1__0_01 E<-
col_char2x ->B1 __0_ 01E<-
col_char3x ->B__0_ 101E<-
col_char4x ->B101 __0_E<-
col_int0 102
col_int1 102000
col_int2 102
col_int3 0
col_blobx ->__0_aaaaaa<-.....->aaaaaaaaaa<-
col_char0x -> 102<-
col_char1x ->B 1__0_02 E<-
col_char2x ->B1 __0_ 02E<-
col_char3x ->B__0_ 102E<-
col_char4x ->B102 __0_E<-
# TC-11 Several concurrent sessions perform updates in t1 like mad.
# The system MUST survive this.
# Printing of statements is partially suppressed.
SET @start_time = UNIX_TIMESTAMP();
SELECT 1 FROM t1 WHERE col_int0 = @t1_half FOR UPDATE;
1
1
SELECT GET_LOCK('Blocker', 1000) ;
GET_LOCK('Blocker', 1000)
1
RELEASE_LOCK('Blocker')
1
# pass
SHOW ENGINE INNODB STATUS;
# TC-13 One session performs ALTER TABLE t1 ADD KEY ... on the fat table t1.
# The system MUST survive this.
SET @start_time = UNIX_TIMESTAMP();
ALTER TABLE t1 ADD KEY idx_col_char4_col_char0 (col_char4,col_char0);
SHOW ENGINE INNODB STATUS;
# pass
# TC-15 One session performs a fat update on the fat table t1.
# The system MUST survive this.
SET @start_time = UNIX_TIMESTAMP();
SET @extra_int = 13;
SET @extra_string = f_thread_id(@extra_int);
UPDATE t1 SET
col_int1 = f_col_int1(col_int0), col_int2 = f_col_int2(col_int0),
col_int3 = f_col_int3(col_int0), col_blob = f_col_blob(col_int0),
col_char0 = f_col_char0(col_int0), col_char1 = f_col_char1(col_int0),
col_char2 = f_col_char2(col_int0), col_char3 = f_col_char3(col_int0),
col_char4 = f_col_char4(col_int0)
WHERE col_int0 BETWEEN @t1_half - 2500 AND @t1_half + 2500;
COMMIT;
SHOW ENGINE INNODB STATUS;
# pass
INSERT INTO my_metrics
SELECT NAME, COUNT, MAX_COUNT, MIN_COUNT, AVG_COUNT,
COUNT_RESET, MAX_COUNT_RESET, MIN_COUNT_RESET, AVG_COUNT_RESET,
TIME_ENABLED, TIME_DISABLED, TIME_ELAPSED, TIME_RESET,
ENABLED, 'after'
FROM information_schema.innodb_metrics
WHERE NAME LIKE 'innodb_rwlock_sx_%';
# TC-16 The following activities happend after reset in innodb_metrics
# - Insert some significant amount of rows into t1.
# - Several concurrent users perform excessive updates in t1.
# - ALTER TABLE ... ADD KEY <sufficient big enough structure>
# - One UPDATE statement modifying a huge slice of t1.
# Any of them causes heavy use of SX lock and therefore COUNT_RESET
# must have grown for ALL = @sx_count entries.
# pass
# TC-09 Heavy activity after reset.
# COUNT_RESET = MAX_COUNT_RESET for ALL = @sx_count entries
# needs to stay valid though he counters will have grown.
# pass
DELETE FROM my_metrics;
INSERT INTO my_metrics
SELECT NAME, COUNT, MAX_COUNT, MIN_COUNT, AVG_COUNT,
COUNT_RESET, MAX_COUNT_RESET, MIN_COUNT_RESET, AVG_COUNT_RESET,
TIME_ENABLED, TIME_DISABLED, TIME_ELAPSED, TIME_RESET,
ENABLED, 'before'
FROM information_schema.innodb_metrics
WHERE NAME LIKE 'innodb_rwlock_sx_%';
SET GLOBAL innodb_monitor_reset = "innodb_rwlock_sx_%";
INSERT INTO my_metrics
SELECT NAME, COUNT, MAX_COUNT, MIN_COUNT, AVG_COUNT,
COUNT_RESET, MAX_COUNT_RESET, MIN_COUNT_RESET, AVG_COUNT_RESET,
TIME_ENABLED, TIME_DISABLED, TIME_ELAPSED, TIME_RESET,
ENABLED, 'after'
FROM information_schema.innodb_metrics
WHERE NAME LIKE 'innodb_rwlock_sx_%';
# TC-08 There was a reset. COUNT_RESET = MAX_COUNT_RESET for ALL
# = @sx_count entries.
# pass
# TC-17 We had heavy activity causing big counters and after that a reset.
# Reset causes COUNT > COUNT_RESET AND MAX_COUNT > MAX_COUNT_RESET
# for ALL @sx_count entries.
# pass
# TC-18 We had some reset but this must not decrease COUNT or MAX_COUNT
# after.COUNT >= before.COUNT AND
# after.MAX_COUNT >= before.MAX_COUNT for ALL @sx_count entries.
# pass
# TC-19 We had some reset after heavy activity and this must cause
# after.COUNT_RESET < before.COUNT_RESET
# AND after.MAX_COUNT_RESET < before.MAX_COUNT_RESET AND
# for ALL @sx_count entries.
# pass
connection con10;
disconnect con10;
connection con9;
disconnect con9;
connection con8;
disconnect con8;
connection con7;
disconnect con7;
connection con6;
disconnect con6;
connection con5;
disconnect con5;
connection con4;
disconnect con4;
connection con3;
disconnect con3;
connection con2;
disconnect con2;
connection con1;
disconnect con1;
connection default;
USE test;
DROP SCHEMA my_schema;
SET GLOBAL innodb_monitor_disable = all;
SET GLOBAL innodb_monitor_reset_all = all;
SET GLOBAL innodb_monitor_enable = default;
SET GLOBAL innodb_monitor_disable = default;
SET GLOBAL innodb_monitor_reset = default;
SET GLOBAL innodb_monitor_reset_all = default;
SET GLOBAL innodb_monitor_disable = "innodb_rwlock_sx_%";
SET GLOBAL innodb_monitor_reset = "innodb_rwlock_sx_%";
mysql-test/suite/innodb/t/innodb_wl6326_big.test deleted 100644 → 0
View file @ d8373fea
# This is a script for MTR with hybrid use.
# a) As regression test
# Mostly some brute force attempt to stress the internal sx locks of
# InnoDB which were introduced by WL#6326+WL#6363.
# The file with expected results fits to this variant.
# The impact on code coverage is quite good.
# b) As testbed for attempts to extend or improve the RQG test wl6326_sql.yy.
# The MTR based test uses
# - a table t1 with the same layout
# - the same stored functions
# - the same stored procedure proc_fill_t1 for inserting a configurable
# amount of records into t1
# like the RQG test wl6326_sql.yy.
# Feel free to modify parameters like $max_row_count, $max_con,
# $high_load_duration or switch debugging on (let $test_debug= 1).
# But please be aware that MTR will most probably report that the test
# failed because it got a difference to expected results.
# Reasons:
# - In general: The file with expected results fits to a) only.
# - The actual results might dependend on $max_row_count.
# - Additional result sets might be printed.
#
# WL#6326 is about the sx locks (InnoDB feature only).
--source include/have_innodb.inc
# Runtime properties:
# Notebook i5 dual core with HT, MySQL binaries compiled with debug,
# max_row_count=10000 rows
# vardir on tmpfs : ~ 375
# vardir on disk : ~ 546
--source include/big_test.inc
# Possibly related to MDEV-16678, the test seems to deterministically fail on
# non-debug builds. innodb_force_recovery=2 (disabling the purge of history)
# would seem to help a little.
--source include/have_debug.inc
# We go with "--send" and "--reap" and that fails with the embedded server.
--source include/not_embedded.inc
# Its intentional to not take the risk that a run with valgrind times out.
--source include/not_valgrind.inc
# FIXME:
# Increase the code coverage provided by the current test by
# trying "InnoDB Tablespace Monitor" as soon as some bug is fixed
# or wait till the deprecated "InnoDB Tablespace Monitor" is
# removed.
# Setup of some parameters
# ------------------------
# Number of records within every chunk to be added to t1.
let $load_unit= 10000;
#
# Rough number of records in t1 to achieve.
# We add chunks of $load_unit rows till the actual number
# of rows in the table t1 exceeds $max_row_count.
# let $max_row_count= 1000000;
# let $max_row_count= 300000;
# let $max_row_count= 100000;
# let $max_row_count= 30000;
let $max_row_count= 10000; # ~ 322s on tmpfs (NB)
#
# Determine which variant to run.
let $test_debug= 0;
#
# Number of concurrent sessions to be used in the high load test.
let $max_con= 10;
# Duration of the high load test in seconds.
let $high_load_duration= 60;
# Putting all objects into the SCHEMA my_schema makes the final cleanup easier.
# We simply run than DROP SCHEMA my_schema.
CREATE SCHEMA my_schema;
USE my_schema;
CREATE FUNCTION f_thread_id (i INT) RETURNS CHAR(4) DETERMINISTIC
RETURN CONCAT(LPAD(CAST(i AS CHAR),3,'_'),'_') ;
SELECT CONCAT('->', f_thread_id( 1), '<-');
SELECT CONCAT('->', f_thread_id(12), '<-');
# Definition of parameters used in functions.
# We use here a "1" in order to make the impact on the results of the functions
# good visible.
SET @extra_int = 1;
SET @extra_string = f_thread_id(@extra_int);
SELECT @extra_int , @extra_string;
# The different functions are used later when filling t1 and also during
# RQG testing. They serve to generate the difference between column values
# in different rows in different areas of the column.
# Fictional example:
# row 1 col_int0=1 colx='1abcdefgh' coly='abcd1efgh' colz='abcdefgh1'
# row 2 col_int0=2 colx='2abcdefgh' coly='abcd2efgh' colz='abcdefgh2'
# The function f_<pattern> is for the column with the name <pattern>.
# There is a function
# - for every column except col_int0
# - even if the SQL for generating the value is simple.
# The reason for this is the architecture of the RQG test.
let $part= AS my_result
FROM (SELECT 1 AS my_col UNION SELECT 12 UNION SELECT 123
UNION SELECT 1234 UNION SELECT 12345) AS tx;
let $function_name= f_col_int1;
eval CREATE FUNCTION $function_name (i INT) RETURNS INT(20) DETERMINISTIC
RETURN i * 1000 + @extra_int ;
eval SELECT $function_name(my_col) $part;
let $function_name= f_col_int2;
eval CREATE FUNCTION $function_name (i INT) RETURNS INT(20) DETERMINISTIC
RETURN @extra_int * 10000000 + i ;
eval SELECT $function_name(my_col) $part;
let $function_name= f_col_int3;
eval CREATE FUNCTION $function_name (i INT) RETURNS INT(20) DETERMINISTIC
RETURN @extra_int ;
eval SELECT $function_name(my_col) $part;
let $function_name= f_col_blob;
eval CREATE FUNCTION $function_name (i INT) RETURNS BLOB DETERMINISTIC
RETURN RPAD(@extra_string,(@@innodb_page_size / 2 ) + 1,'a');
eval SELECT CONCAT('->', SUBSTR($function_name(my_col) FROM 1 FOR 10),
'<-.....->', SUBSTR($function_name(my_col) FROM -10 FOR 10), '<-') $part;
let $function_name= f_col_char0;
eval CREATE FUNCTION $function_name (i INT) RETURNS CHAR(255) DETERMINISTIC
RETURN LPAD(CAST(i AS CHAR),255,' ');
eval SELECT CONCAT('->', $function_name(my_col), '<-') $part;
let $function_name= f_col_char1;
eval CREATE FUNCTION $function_name (i INT) RETURNS CHAR(26) DETERMINISTIC
RETURN
CONCAT('B',
LPAD(SUBSTR(CAST(i AS CHAR),1,(LENGTH(CAST(i AS CHAR)) DIV 2)),10,' '),
@extra_string,
RPAD(SUBSTR(CAST(i AS CHAR), -((LENGTH(CAST(i AS CHAR)) + 1) DIV 2)),10,' '),
'E') ;
eval SELECT CONCAT('->', $function_name(my_col), '<-') $part;
let $function_name= f_col_char2;
eval CREATE FUNCTION $function_name (i INT) RETURNS CHAR(26) DETERMINISTIC
RETURN
CONCAT('B',
RPAD(SUBSTR(CAST(i AS CHAR),1,(LENGTH(CAST(i AS CHAR)) DIV 2)),10,' '),
@extra_string,
LPAD(SUBSTR(CAST(i AS CHAR), -((LENGTH(CAST(i AS CHAR)) + 1) DIV 2)),10,' '),
'E');
eval SELECT CONCAT('->', $function_name(my_col), '<-') $part;
let $function_name= f_col_char3;
eval CREATE FUNCTION $function_name (i INT) RETURNS CHAR(26) DETERMINISTIC
RETURN
CONCAT('B',@extra_string,LPAD(CAST(i AS CHAR),20,' '),'E');
eval SELECT CONCAT('->', $function_name(my_col), '<-') $part;
let $function_name= f_col_char4;
eval CREATE FUNCTION $function_name (i INT) RETURNS CHAR(26) DETERMINISTIC
RETURN
CONCAT('B',RPAD(CAST(i AS CHAR),20,' '),@extra_string,'E');
eval SELECT CONCAT('->', $function_name(my_col), '<-') $part;
# Auxiliary table for figuring out the impact of scenarios on
# information_schema.innodb_metrics content.
CREATE TABLE my_metrics LIKE information_schema.innodb_metrics;
ALTER TABLE my_metrics ADD COLUMN phase ENUM('after', 'before'),
DROP COLUMN SUBSYSTEM, DROP COLUMN TYPE, DROP COLUMN COMMENT,
ADD PRIMARY KEY (NAME,phase);
let $empty_my_metrics= DELETE FROM my_metrics;
let $before_my_metrics= INSERT INTO my_metrics
SELECT NAME, COUNT, MAX_COUNT, MIN_COUNT, AVG_COUNT,
COUNT_RESET, MAX_COUNT_RESET, MIN_COUNT_RESET, AVG_COUNT_RESET,
TIME_ENABLED, TIME_DISABLED, TIME_ELAPSED, TIME_RESET,
ENABLED, 'before'
FROM information_schema.innodb_metrics
WHERE NAME LIKE 'innodb_rwlock_sx_%';
let $after_my_metrics= INSERT INTO my_metrics
SELECT NAME, COUNT, MAX_COUNT, MIN_COUNT, AVG_COUNT,
COUNT_RESET, MAX_COUNT_RESET, MIN_COUNT_RESET, AVG_COUNT_RESET,
TIME_ENABLED, TIME_DISABLED, TIME_ELAPSED, TIME_RESET,
ENABLED, 'after'
FROM information_schema.innodb_metrics
WHERE NAME LIKE 'innodb_rwlock_sx_%';
let $print_metrics= SELECT NAME, COUNT, MAX_COUNT, MIN_COUNT, AVG_COUNT,
COUNT_RESET, MAX_COUNT_RESET, MIN_COUNT_RESET, AVG_COUNT_RESET,
TIME_ENABLED, TIME_DISABLED, TIME_ELAPSED, TIME_RESET, ENABLED
FROM information_schema.innodb_metrics
WHERE NAME LIKE 'innodb_rwlock_sx_%'
ORDER BY NAME;
# The main table for testing.
CREATE TABLE t1 (
col_int0 BIGINT,
col_int1 BIGINT,
col_int2 BIGINT,
col_int3 BIGINT,
col_blob BLOB,
col_char0 VARCHAR(255),
col_char1 VARCHAR(30),
col_char2 VARCHAR(30),
col_char3 VARCHAR(30),
col_char4 VARCHAR(30)
) ENGINE = InnoDB;
# Use many indexes with mostly significant size in order to cause
# some heavy use of sx locks during data generation.
ALTER TABLE t1 ADD UNIQUE KEY uidx_col_int0 (col_int0),
ADD UNIQUE KEY uidx1 (col_int1, col_char0),
ADD UNIQUE KEY uidx2 (col_int2, col_char0, col_int1),
ADD UNIQUE KEY uidx3 (col_int3, col_int2, col_char0),
ADD UNIQUE KEY uidx4 (col_char1, col_char0),
ADD UNIQUE KEY uidx5 (col_char2, col_char0, col_char1),
ADD UNIQUE KEY uidx6 (col_char3, col_char2, col_char0),
ADD UNIQUE KEY uidx7 (col_int1, col_int2, col_int3, col_char4,
col_char1, col_char2, col_char3, col_char0),
ADD KEY idx8 (col_blob(10), col_char4);
delimiter |;
CREATE PROCEDURE proc_fill_t1 (max_row_count INT, load_unit INT)
BEGIN
DECLARE my_count INTEGER DEFAULT 0;
DECLARE max_load_count INTEGER DEFAULT 0;
DROP TABLE IF EXISTS t0;
CREATE TEMPORARY TABLE t0 (col_int0 BIGINT, PRIMARY KEY(col_int0));
WHILE (my_count < load_unit ) DO
SET my_count = my_count + 1;
INSERT INTO t0 SET col_int0 = my_count;
END WHILE;
SET max_load_count = (SELECT (max_row_count DIV load_unit) + 1 );
SELECT COUNT(col_int0) INTO @val FROM t1;
SET my_count = 0;
REPEAT
INSERT INTO t1 (col_int0, col_int1, col_int2, col_int3, col_blob,
col_char0, col_char1, col_char2,col_char3,col_char4)
SELECT col_int0 + @val,
f_col_int1(col_int0 + @val),
f_col_int2(col_int0 + @val),
f_col_int3(col_int0 + @val),
f_col_blob(col_int0 + @val),
f_col_char0(col_int0 + @val),
f_col_char1(col_int0 + @val),
f_col_char2(col_int0 + @val),
f_col_char3(col_int0 + @val),
f_col_char4(col_int0 + @val)
FROM t0;
COMMIT;
SELECT MAX(col_int0) INTO @val FROM t1;
SET my_count = my_count + 1;
UNTIL( my_count > max_load_count OR @val >= max_row_count )
END REPEAT;
DROP TEMPORARY TABLE t0;
END|
delimiter ;|
delimiter |;
CREATE PROCEDURE proc_dml (max_duration INT, t1_stripe_half INT)
BEGIN
DECLARE aux INTEGER DEFAULT 0;
DECLARE start_time INT;
DECLARE CONTINUE HANDLER FOR SQLEXCEPTION, SQLWARNING, NOT FOUND BEGIN END;
SET @extra_int = CONNECTION_ID();
SET @extra_string = f_thread_id(@extra_int);
SELECT ROUND(MAX(col_int0) / 2 ) INTO @t1_half FROM t1;
# The user lock 'Blocker' should be already set by some other session S1.
# S1 starts the race by releasing that lock.
# Wait till the lock is released and the lock can be obtained.
# In order to prevent endless waiting in case of non foreseen problems
# limit the timespan to 30 seconds.
SELECT GET_LOCK('Blocker', 30) INTO @aux;
# Release the lock immediate so that the other "runner" sessions start too.
SELECT RELEASE_LOCK('Blocker') INTO @aux;
SET start_time = UNIX_TIMESTAMP();
WHILE (UNIX_TIMESTAMP() - start_time < max_duration) DO
SET @aux = @t1_half - t1_stripe_half + ROUND(RAND() * t1_stripe_half * 2);
UPDATE t1 SET
col_int1 = f_col_int1(col_int0),
col_int2 = f_col_int2(col_int0),
col_int3 = f_col_int3(col_int0),
col_blob = f_col_blob(col_int0),
col_char0 = f_col_char0(col_int0),
col_char1 = f_col_char1(col_int0),
col_char2 = f_col_char2(col_int0),
col_char3 = f_col_char3(col_int0),
col_char4 = f_col_char4(col_int0)
WHERE col_int0 = @aux;
COMMIT;
END WHILE;
END|
delimiter ;|
SET GLOBAL innodb_monitor_disable = "innodb_rwlock_sx_%";
SET @pre_reset_ts = NOW();
--sleep 1.1
SET GLOBAL innodb_monitor_reset = "innodb_rwlock_sx_%";
SET @pre_enable_ts = NOW();
--sleep 1.1
SET GLOBAL innodb_monitor_enable = "innodb_rwlock_sx_%";
--sleep 1.1
SET @pre_collect_ts = NOW();
eval $empty_my_metrics;
eval $before_my_metrics;
--echo # TC-01 There are exact three entries "innodb_rwlock_sx_%" with the
--echo # with the name which follow in innodb_metrics.
let $check_statement=
SELECT COUNT(*) <> 3 FROM my_metrics
WHERE NAME IN ('innodb_rwlock_sx_spin_waits',
'innodb_rwlock_sx_spin_rounds',
'innodb_rwlock_sx_os_waits');
if(`$check_statement`)
{
--echo # fail
eval $check_statement;
SELECT NAME FROM my_metrics
ORDER BY NAME;
exit;
}
--echo # pass
SELECT COUNT(*) INTO @sx_count FROM my_metrics;
--echo # TC-02 Counting is now enabled. ALL = @sx_count entries show that.
let $check_statement=
SELECT COUNT(*) <> @sx_count FROM my_metrics
WHERE ENABLED;
if(`$check_statement`)
{
--echo # fail
eval $check_statement;
SELECT NAME, ENABLED FROM my_metrics
ORDER BY NAME;
exit;
}
--echo # pass
--echo # TC-03 @pre_reset_ts < TIME_RESET. ALL = @sx_count entries show that.
let $check_statement=
SELECT COUNT(*) <> @sx_count FROM my_metrics
WHERE @pre_reset_ts < TIME_RESET;
if(`$check_statement`)
{
--echo # fail
eval $check_statement;
SELECT NAME, @pre_reset_ts, TIME_RESET FROM my_metrics
ORDER BY NAME;
exit;
}
--echo # pass
--echo # TC-04 @pre_enable_ts < TIME_ENABLED. ALL = @sx_count entries show that.
let $check_statement=
SELECT COUNT(*) <> @sx_count FROM my_metrics
WHERE @pre_enable_ts < TIME_ENABLED;
if(`$check_statement`)
{
--echo # fail
eval $check_statement;
SELECT NAME, @pre_enable_ts, TIME_ENABLED FROM my_metrics
ORDER BY NAME;
exit;
}
--echo # pass
--echo # TC-05 TIME_RESET < TIME_ENABLED AND TIME_ENABLED < @pre_collect_ts
--echo # AND TIME_ELAPSED > 0. ALL = @sx_count entries show that.
let $check_statement=
SELECT COUNT(*) <> @sx_count FROM my_metrics
WHERE TIME_RESET < TIME_ENABLED AND TIME_ENABLED < @pre_collect_ts
AND TIME_ELAPSED > 0;
if(`$check_statement`)
{
--echo # fail
eval $check_statement;
SELECT NAME, @pre_collect_ts, TIME_RESET, TIME_ENABLED, TIME_ELAPSED
FROM my_metrics
ORDER BY NAME;
exit;
}
--echo # pass
--echo # TC-06 COUNT_RESET = MAX_COUNT_RESET. ALL = @sx_count entries show that.
let $check_statement=
SELECT COUNT(*) <> @sx_count FROM my_metrics
WHERE COUNT_RESET = MAX_COUNT_RESET;
if(`$check_statement`)
{
--echo # fail
eval $check_statement;
SELECT NAME, COUNT_RESET, MAX_COUNT_RESET FROM my_metrics
ORDER BY NAME;
exit;
}
--echo # pass
SET GLOBAL innodb_monitor_reset = "innodb_rwlock_sx_%";
--disable_result_log
if($test_debug)
{
--enable_result_log
eval $print_metrics;
}
SHOW ENGINE INNODB STATUS;
--enable_result_log
eval $empty_my_metrics;
eval $before_my_metrics;
# These values (the "0") help to identify later if some record is in its
# initial state or already modified.
SET @extra_string = '__0_';
SET @extra_int = 0;
--echo # TC-07 One session inserts some significant amount of rows into t1.
--echo # The system MUST survive that.
--replace_result $max_row_count <max_row_count>
eval SET @max_row_count = $max_row_count;
--replace_result $load_unit <load_unit>
eval SET @load_unit = $load_unit;
SET @start_time = UNIX_TIMESTAMP();
SET AUTOCOMMIT = OFF;
CALL proc_fill_t1 (@max_row_count, @load_unit);
--echo # pass
SET AUTOCOMMIT = ON;
SELECT col_int0 INTO @t1_half FROM t1
WHERE col_int0 >= (@val DIV 2) ORDER BY col_int0 LIMIT 1;
--disable_result_log
if($test_debug)
{
--enable_result_log
SELECT COUNT(*) AS table_row_count,
UNIX_TIMESTAMP() - @start_time AS fill_run_time
FROM t1;
eval $print_metrics;
}
SHOW ENGINE INNODB STATUS;
--enable_result_log
# Show that the value distribution is according to the plan.
--vertical_results
SELECT col_int0, col_int1, col_int2, col_int3,
CONCAT('->', SUBSTR(col_blob FROM 1 FOR 10),
'<-.....->', SUBSTR(col_blob FROM -10 FOR 10), '<-') AS col_blobx,
CONCAT('->',col_char0,'<-') AS col_char0x,
CONCAT('->',col_char1,'<-') AS col_char1x,
CONCAT('->',col_char2,'<-') AS col_char2x,
CONCAT('->',col_char3,'<-') AS col_char3x,
CONCAT('->',col_char4,'<-') AS col_char4x
FROM t1 WHERE col_int0 between 98 AND 102;
--horizontal_results
# For experiments/interest only. Please do not remove that.
if (0)
{
ANALYZE TABLE t1;
SELECT n_rows, clustered_index_size, sum_of_other_index_sizes
FROM mysql.innodb_table_stats;
# SELECT * FROM mysql.innodb_index_stats;
# idx_col_int3_int0 n_diff_pfx01 1 col_int3
# idx_col_int3_int0 n_diff_pfx02 10000 col_int3,col_int0
# idx_col_int3_int0 n_diff_pfx03 10000 col_int3,col_int0,DB_ROW_ID
# idx_col_int3_int0 n_leaf_pages 19 Number of leaf pages in the index
# idx_col_int3_int0 size 20 Number of pages in the index
--vertical_results
SELECT t1.index_name, t1.stat_value AS idx_pages, t2.stat_value AS idx_leaf_pages,
(t1.stat_value - t2.stat_value - 1) / t1.stat_value AS sx_page_ratio
FROM mysql.innodb_index_stats t1, mysql.innodb_index_stats t2
WHERE t1.index_name = t2.index_name
AND t1.stat_name = 'size' AND t2.stat_name = 'n_leaf_pages'
ORDER BY t1.index_name;
--horizontal_results
}
--echo # TC-11 Several concurrent sessions perform updates in t1 like mad.
--echo # The system MUST survive this.
--echo # Printing of statements is partially suppressed.
SET @start_time = UNIX_TIMESTAMP();
SELECT 1 FROM t1 WHERE col_int0 = @t1_half FOR UPDATE;
SELECT GET_LOCK('Blocker', 1000) ;
--disable_query_log
let $num= $max_con;
while ($num)
{
--connect (con$num,localhost,root,,)
USE my_schema;
# The second parameter of the procedure is size of the affected stripe / 2.
# A smaller stripe causes some smaller counter growth but most probably
# also more stress around locking in general.
# Example # (nnnn) = half stripe size
# NAME | COUNT_RESET (5000) | COUNT_RESET (100)
# -----------------------------+--------------------+----------------
# innodb_rwlock_sx_os_waits | 1412 | 486
# innodb_rwlock_sx_spin_rounds | 44061 | 17031
# innodb_rwlock_sx_spin_waits | 996 | 515
--send
eval CALL proc_dml($high_load_duration,@t1_half);
dec $num;
}
--connection default
SELECT RELEASE_LOCK('Blocker') ;
--sleep 3
COMMIT;
let $num= $max_con;
while ($num)
{
--connection con$num
--reap
dec $num;
}
--echo # pass
--connection default
--enable_query_log
# let $wait_timeout= 181;
# --source include/wait_condition.inc
# eval $after_my_metrics;
--disable_result_log
if($test_debug)
{
--enable_result_log
SELECT UNIX_TIMESTAMP() - @start_time AS update_battle_run_time;
eval $print_metrics;
}
SHOW ENGINE INNODB STATUS;
--enable_result_log
--echo # TC-13 One session performs ALTER TABLE t1 ADD KEY ... on the fat table t1.
--echo # The system MUST survive this.
SET @start_time = UNIX_TIMESTAMP();
ALTER TABLE t1 ADD KEY idx_col_char4_col_char0 (col_char4,col_char0);
--disable_result_log
if($test_debug)
{
--enable_result_log
SELECT UNIX_TIMESTAMP() - @start_time AS add_key_run_time;
eval $print_metrics;
}
SHOW ENGINE INNODB STATUS;
--enable_result_log
--echo # pass
--echo # TC-15 One session performs a fat update on the fat table t1.
--echo # The system MUST survive this.
SET @start_time = UNIX_TIMESTAMP();
SET @extra_int = 13;
SET @extra_string = f_thread_id(@extra_int);
eval UPDATE t1 SET
col_int1 = f_col_int1(col_int0), col_int2 = f_col_int2(col_int0),
col_int3 = f_col_int3(col_int0), col_blob = f_col_blob(col_int0),
col_char0 = f_col_char0(col_int0), col_char1 = f_col_char1(col_int0),
col_char2 = f_col_char2(col_int0), col_char3 = f_col_char3(col_int0),
col_char4 = f_col_char4(col_int0)
WHERE col_int0 BETWEEN @t1_half - 2500 AND @t1_half + 2500;
COMMIT;
--disable_result_log
if($test_debug)
{
--enable_result_log
SELECT UNIX_TIMESTAMP() - @start_time AS total_update_run_time;
eval $print_metrics;
}
SHOW ENGINE INNODB STATUS;
--enable_result_log
--echo # pass
# Basically every of the big activities causes some counter growth.
# But caused by
# - the architecture of InnoDB (certain things happen asynchronous)
# - the actual test configuration (server/InnoDB options)
# - conditions like parallel (./mtr --parallel=auto?) load on the testing box
# this might be not fulfilled per single big activity every time except
# we go with huge waits or similar.
# Observation:
# - non debug binaries: expectation frequent not fulfilled
# - debug binaries: expectation rare not fulfilled
#
let $wait_timeout= 121;
let $wait_condition=
SELECT COUNT(*) = @sx_count
FROM information_schema.innodb_metrics t_after
JOIN my_metrics t_before
ON t_after.COUNT_RESET > t_before.COUNT_RESET AND t_after.NAME = t_before.NAME;
--source include/wait_condition.inc
eval $after_my_metrics;
--echo # TC-16 The following activities happend after reset in innodb_metrics
--echo # - Insert some significant amount of rows into t1.
--echo # - Several concurrent users perform excessive updates in t1.
--echo # - ALTER TABLE ... ADD KEY <sufficient big enough structure>
--echo # - One UPDATE statement modifying a huge slice of t1.
--echo # Any of them causes heavy use of SX lock and therefore COUNT_RESET
--echo # must have grown for ALL = @sx_count entries.
# The former testcases TC-10 and TC12 had to be made a part of this testcase
# because their results were unstable.
let $check_statement=
SELECT COUNT(*) <> @sx_count FROM my_metrics t_after JOIN my_metrics t_before
ON t_after.COUNT_RESET > t_before.COUNT_RESET AND t_after.NAME = t_before.NAME
WHERE t_after.phase = 'after' AND t_before.phase = 'before';
if(`$check_statement`)
{
--echo # fail
eval $check_statement;
SELECT * FROM my_metrics
ORDER BY NAME, phase;
exit;
}
--echo # pass
--echo # TC-09 Heavy activity after reset.
--echo # COUNT_RESET = MAX_COUNT_RESET for ALL = @sx_count entries
--echo # needs to stay valid though he counters will have grown.
let $check_statement=
SELECT COUNT(*) <> @sx_count FROM my_metrics
WHERE phase = 'after' AND COUNT_RESET = MAX_COUNT_RESET;
if(`$check_statement`)
{
--echo # fail
eval $check_statement;
SELECT * FROM my_metrics
ORDER BY NAME, phase;
exit;
}
--echo # pass
eval $empty_my_metrics;
eval $before_my_metrics;
SET GLOBAL innodb_monitor_reset = "innodb_rwlock_sx_%";
eval $after_my_metrics;
--echo # TC-08 There was a reset. COUNT_RESET = MAX_COUNT_RESET for ALL
--echo # = @sx_count entries.
let $check_statement=
SELECT COUNT(*) <> @sx_count FROM my_metrics
WHERE phase = 'before' AND COUNT_RESET = MAX_COUNT_RESET;
if(`$check_statement`)
{
--echo # fail
eval $check_statement;
SELECT * FROM my_metrics
ORDER BY NAME, phase;
exit;
}
--echo # pass
--echo # TC-17 We had heavy activity causing big counters and after that a reset.
--echo # Reset causes COUNT > COUNT_RESET AND MAX_COUNT > MAX_COUNT_RESET
--echo # for ALL @sx_count entries.
let $check_statement=
SELECT COUNT(*) <> @sx_count FROM my_metrics
WHERE phase = 'after'
AND COUNT > COUNT_RESET
AND MAX_COUNT > MAX_COUNT_RESET;
if(`$check_statement`)
{
--echo # fail
eval $check_statement;
SELECT * FROM my_metrics
ORDER BY NAME, phase;
exit;
}
--echo # pass
--echo # TC-18 We had some reset but this must not decrease COUNT or MAX_COUNT
--echo # after.COUNT >= before.COUNT AND
--echo # after.MAX_COUNT >= before.MAX_COUNT for ALL @sx_count entries.
let $check_statement=
SELECT COUNT(*) <> @sx_count FROM my_metrics t_after JOIN my_metrics t_before
ON t_after.COUNT >= t_before.COUNT AND t_after.MAX_COUNT >= t_before.MAX_COUNT
AND t_after.NAME = t_before.NAME
WHERE t_after.phase = 'after' AND t_before.phase = 'before';
if(`$check_statement`)
{
--echo # fail
eval $check_statement;
SELECT * FROM my_metrics
ORDER BY NAME, phase;
exit;
}
--echo # pass
--echo # TC-19 We had some reset after heavy activity and this must cause
--echo # after.COUNT_RESET < before.COUNT_RESET
--echo # AND after.MAX_COUNT_RESET < before.MAX_COUNT_RESET AND
--echo # for ALL @sx_count entries.
let $check_statement=
SELECT COUNT(*) <> @sx_count FROM my_metrics t_after JOIN my_metrics t_before
ON t_after.COUNT_RESET < t_before.COUNT_RESET
AND t_after.MAX_COUNT_RESET < t_before.MAX_COUNT_RESET
AND t_after.NAME = t_before.NAME
WHERE t_after.phase = 'after' AND t_before.phase = 'before';
if(`$check_statement`)
{
--echo # fail
eval $check_statement;
SELECT * FROM my_metrics
ORDER BY NAME, phase;
exit;
}
--echo # pass
# Cleanup
let $num= $max_con;
while ($num)
{
--connection con$num
--disconnect con$num
--source include/wait_until_disconnected.inc
dec $num;
}
--connection default
USE test;
DROP SCHEMA my_schema;
SET GLOBAL innodb_monitor_disable = all;
SET GLOBAL innodb_monitor_reset_all = all;
--disable_warnings
SET GLOBAL innodb_monitor_enable = default;
SET GLOBAL innodb_monitor_disable = default;
SET GLOBAL innodb_monitor_reset = default;
SET GLOBAL innodb_monitor_reset_all = default;
--enable_warnings
SET GLOBAL innodb_monitor_disable = "innodb_rwlock_sx_%";
SET GLOBAL innodb_monitor_reset = "innodb_rwlock_sx_%";
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