Current File : //usr/share/mysql-test/suite/sys_vars/t/delayed_insert_limit_func.test
################################################################################
# #
# Variable Name: delayed_insert_limit #
# Scope: GLOBAL #
# Access Type: Dynamic #
# Data Type: Numeric #
# Default Value: 100 #
# Range: 1 - 4294967295 #
# #
# #
# Creation Date: 2008-02-25 #
# Author: Sharique Abdullah #
# Modified: HHunger 2009-02-26 Replaced 2 sleeps by wait conditions #
# Modified: mleich 2009-03-18 Partially reimplemented #
# #
# Description: Test Cases of Dynamic System Variable "delayed_insert_limit" #
# that checks behavior of this variable in the following ways #
# * Functionality based on different values #
# #
# Reference: #
# http://dev.mysql.com/doc/refman/5.1/en/server-system-variables.html #
# #
################################################################################
--echo ** Setup **
--echo
#
# Setup
#
--source include/not_embedded.inc
--echo Creating connection con0
connect (con0,localhost,root,,);
let $con0_id=`SELECT CONNECTION_ID()`;
--echo Creating connection con1
connect (con1,localhost,root,,);
let $con1_id=`SELECT CONNECTION_ID()`;
connection default;
SET @global_delayed_insert_limit = @@GLOBAL.delayed_insert_limit;
#
# Create Table
#
CREATE TABLE t1 (a VARCHAR(100),b VARCHAR(100),c VARCHAR(100));
CREATE VIEW v1 as select * from t1;
--echo '#--------------------FN_DYNVARS_25_01-------------------------#'
# delayed_insert_limit is smaller than the number of inserted rows
SET GLOBAL delayed_insert_limit = 14;
INSERT INTO t1 VALUES('1','1','1');
INSERT INTO t1 VALUES('2','1','1');
INSERT INTO t1 VALUES('3','1','1');
INSERT INTO t1 VALUES('4','1','1');
INSERT INTO t1 VALUES('5','1','1');
INSERT INTO t1 VALUES('6','1','1');
LOCK TABLE v1 WRITE;
--echo ** Connection con1 **
connection con1;
delimiter |;
send
INSERT DELAYED INTO t1 VALUES('7','1','1');
INSERT DELAYED INTO t1 VALUES('8','1','1');
INSERT DELAYED INTO t1 VALUES('9','1','1');
INSERT DELAYED INTO t1 VALUES('10','1','1');
INSERT DELAYED INTO t1 VALUES('11','1','1');
INSERT DELAYED INTO t1 VALUES('12','1','1');
INSERT DELAYED INTO t1 VALUES('13','1','1');
INSERT DELAYED INTO t1 VALUES('14','1','1');
INSERT DELAYED INTO t1 VALUES('15','1','1');
INSERT DELAYED INTO t1 VALUES('16','1','1');
INSERT DELAYED INTO t1 VALUES('17','1','1');
INSERT DELAYED INTO t1 VALUES('18','1','1');
INSERT DELAYED INTO t1 VALUES('19','1','1');
INSERT DELAYED INTO t1 VALUES('20','1','1');
INSERT DELAYED INTO t1 VALUES('21','1','1');
INSERT DELAYED INTO t1 VALUES('22','1','1');
INSERT DELAYED INTO t1 VALUES('23','1','1');
INSERT DELAYED INTO t1 VALUES('24','1','1');
INSERT DELAYED INTO t1 VALUES('25','1','1');
INSERT DELAYED INTO t1 VALUES('26','1','1');
INSERT DELAYED INTO t1 VALUES('27','1','1');
INSERT DELAYED INTO t1 VALUES('28','1','1');
INSERT DELAYED INTO t1 VALUES('29','1','1');
INSERT DELAYED INTO t1 VALUES('30','1','1');
INSERT DELAYED INTO t1 VALUES('31','1','1');
INSERT DELAYED INTO t1 VALUES('32','1','1');
INSERT DELAYED INTO t1 VALUES('33','1','1');
INSERT DELAYED INTO t1 VALUES('34','1','1');
INSERT DELAYED INTO t1 VALUES('35','1','1');
INSERT DELAYED INTO t1 VALUES('36','1','1');
INSERT DELAYED INTO t1 VALUES('37','1','1');
INSERT DELAYED INTO t1 VALUES('38','1','1');
INSERT DELAYED INTO t1 VALUES('39','1','1');
INSERT DELAYED INTO t1 VALUES('40','1','1');
INSERT DELAYED INTO t1 VALUES('41','1','1');
INSERT DELAYED INTO t1 VALUES('42','1','1');
INSERT DELAYED INTO t1 VALUES('43','1','1');|
delimiter ;|
--echo ** Connection con0 **
connection con0;
let $wait_condition=
SELECT variable_value > @@global.delayed_insert_limit
FROM information_schema.global_status
WHERE variable_name like 'Not_flushed_delayed_rows';
--source include/wait_condition.inc
let $my_select= SELECT COUNT(*) FROM t1;
send;
eval $my_select;
--echo ** Connection default **
connection default;
--echo ** Wait till con0 is blocked **
let $wait_condition=
SELECT COUNT(*) = 1 FROM information_schema.processlist
WHERE state = 'Waiting for table level lock' AND info = '$my_select';
--source include/wait_condition.inc
UNLOCK TABLES;
--echo ** Connection con1 **
connection con1;
--echo Asynchronous "reap" result
reap;
--echo ** Connection con0 **
connection con0;
--echo Asynchronous "reap" result
--echo The next result suffers from
--echo '# Bug#35386 insert delayed inserts 1 + limit rows instead of just limit rows'
#
# on UNLOCK TABLES both SELECT in the con0 and delayed insert thread in the
# con1 were awaken. There's no FIFO for TL_WRITE_DELAYED and TL_READ,
# so either the first delayed_insert_limit rows will be inserted
# before select (which will see 21 row) or select will go first (and see 6 rows)
#
--replace_result 6 21
reap;
--echo ** Connection default **
connection default;
let $wait_condition= SELECT count(*) = 43 FROM t1;
--source include/wait_condition.inc
--echo Checking if the delayed insert continued afterwards
SELECT COUNT(*) FROM t1;
DROP TABLE t1;
DROP VIEW v1;
--echo '#--------------------FN_DYNVARS_25_02-------------------------#'
# delayed_insert_limit is bigger than the number of inserted rows
CREATE TABLE t1 (a VARCHAR(100));
CREATE VIEW v1 AS SELECT * FROM t1;
SET GLOBAL delayed_insert_limit = 20;
INSERT INTO t1 VALUES('1');
INSERT INTO t1 VALUES('2');
INSERT INTO t1 VALUES('3');
INSERT INTO t1 VALUES('4');
INSERT INTO t1 VALUES('5');
INSERT INTO t1 VALUES('6');
LOCK TABLE v1 WRITE;
--echo ** Connection con1 **
connection con1;
--echo Asynchronous execute
delimiter |;
send
INSERT DELAYED INTO t1 VALUES('7');
INSERT DELAYED INTO t1 VALUES('8');
INSERT DELAYED INTO t1 VALUES('9');
INSERT DELAYED INTO t1 VALUES('10');
INSERT DELAYED INTO t1 VALUES('11');
INSERT DELAYED INTO t1 VALUES('12');
INSERT DELAYED INTO t1 VALUES('13');
INSERT DELAYED INTO t1 VALUES('14');
INSERT DELAYED INTO t1 VALUES('15');
INSERT DELAYED INTO t1 VALUES('16');
INSERT DELAYED INTO t1 VALUES('17');
INSERT DELAYED INTO t1 VALUES('18');
INSERT DELAYED INTO t1 VALUES('19');
INSERT DELAYED INTO t1 VALUES('20');
INSERT DELAYED INTO t1 VALUES('21');
INSERT DELAYED INTO t1 VALUES('22');|
delimiter ;|
--echo ** Connection con0 **
connection con0;
let $wait_condition=
SELECT variable_value > 0 FROM information_schema.global_status
WHERE variable_name like 'Not_flushed_delayed_rows';
--source include/wait_condition.inc
--echo Asynchronous execute
# Due to performance and server behaveiour the test observes values between 6 and 22.
# In any case the value must not be outside of that range.
let $my_select= SELECT COUNT(*) BETWEEN 6 AND 22 FROM t1;
send;
eval $my_select;
--echo ** Connection default **
connection default;
--echo ** Wait till con0 is blocked **
let $wait_condition=
SELECT COUNT(*) = 1 FROM information_schema.processlist
WHERE state = 'Waiting for table level lock' AND info = '$my_select';
--source include/wait_condition.inc
UNLOCK TABLES;
--echo ** Connection con1 **
connection con1;
reap;
--echo ** Connection con0 **
connection con0;
--echo Asynchronous "reap" result
reap;
--echo ** Connection default**
connection default;
--echo Checking if the delayed insert gives the same result afterwards
eval $my_select;
#
# Cleanup
#
--echo ** Connection default**
connection default;
DROP TABLE t1;
DROP VIEW v1;
SET @@GLOBAL.delayed_insert_limit = @global_delayed_insert_limit;
--echo Disconnecting from con1, con0
disconnect con0;
disconnect con1;
let $wait_condition=
SELECT COUNT(*) = 0 FROM information_schema.processlist
WHERE id IN ($con0_id,$con1_id);
--source include/wait_condition.inc
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