Current File : //usr/share/mysql-test/t/variables-big.test
#
# test variables big
#
--source include/big_test.inc
#
# Bug#27322 failure to allocate transaction_prealloc_size causes crash
#
#
# Manual (5.1):
# Platform Bit Size Range Default
# 32/64 1024-128k 4096
#
# Observation(mleich):
# 1. - Linux 64 Bit, MySQL 64 Bit, 4 GiB RAM, 8 GiB swap
# - SET SESSION transaction_prealloc_size=1099511627776;
# SHOW PROCESSLIST;
# Id User ... Info
# <Id> root ... SHOW PROCESSLIST
# SELECT @@session.transaction_prealloc_size;
# @@session.transaction_prealloc_size
# 1099511627776
# very short runtime in 5.0
# excessive resource consumption + long runtime in 5.1 and 6.0
# 2. - Win in VM, slightly older version of this test, MySQL 5.0
# - testcase timeout after 900s
# analyze-timeout-mysqld.1.err :
# Id User ... Time Info
# 83 root ... 542 set session transaction_prealloc_size=1024*1024*1024*2
# 84 root ... 1 SHOW PROCESSLIST
#
# There is a significant probablitity that this tests fails with testcase
# timeout if the testing box is not powerful enough.
#
SET @def_var= @@session.transaction_prealloc_size;
--disable_warnings
SET SESSION transaction_prealloc_size=1024*1024*1024*1;
--replace_column 1 <Id> 3 <Host> 6 <Time> 7 <State>
--sorted_result
SHOW PROCESSLIST;
SET SESSION transaction_prealloc_size=1024*1024*1024*2;
--replace_column 1 <Id> 3 <Host> 6 <Time> 7 <State>
--sorted_result
SHOW PROCESSLIST;
SET SESSION transaction_prealloc_size=1024*1024*1024*3;
--replace_column 1 <Id> 3 <Host> 6 <Time> 7 <State>
--sorted_result
SHOW PROCESSLIST;
SET SESSION transaction_prealloc_size=1024*1024*1024*4;
--replace_column 1 <Id> 3 <Host> 6 <Time> 7 <State>
--sorted_result
SHOW PROCESSLIST;
SET SESSION transaction_prealloc_size=1024*1024*1024*5;
--replace_column 1 <Id> 3 <Host> 6 <Time> 7 <State>
--sorted_result
SHOW PROCESSLIST;
--enable_warnings
SET @@session.transaction_prealloc_size= @def_var;
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