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variables-big.test
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# # 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;