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Add new user variables for tuning memory usage:

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query_alloc_block_size, query_prealloc_size, range_alloc_block_size,transaction_alloc_block_size and transaction_prealloc_size
Add more checks for "out of memory" detection in range optimization
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monty@mashka.mysql.fi
2003-10-11 22:00:24 +03:00
parent 9bba878b8c
commit c95d142f8f
21 changed files with 257 additions and 81 deletions
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12
mysql-test/t/variables.test
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@@ -99,6 +99,18 @@ select @@timestamp>0;
set @@rand_seed1=10000000,@@rand_seed2=1000000;
select ROUND(RAND(),5);
show variables like '%alloc%';
set @@range_alloc_block_size=1024*16;
set @@query_alloc_block_size=1024*17+2;
set @@query_prealloc_size=1024*18;
set @@transaction_alloc_block_size=1024*20-1;
set @@transaction_prealloc_size=1024*21-1;
select @@query_alloc_block_size;
show variables like '%alloc%';
set @@range_alloc_block_size=default;
set @@query_alloc_block_size=default, @@query_prealloc_size=default;
set transaction_alloc_block_size=default, @@transaction_prealloc_size=default;
show variables like '%alloc%';
# The following should give errors