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MDEV-27913 innodb_ft_cache_size max possible value (80000000) is too small for practical purposes

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- Make innodb_ft_cache_size & innodb_ft_total_cache_size are dynamic
variable and increase the maximum value of innodb_ft_cache_size to
512MB for 32-bit system and 1 TB for 64-bit system and set
innodb_ft_total_cache_size maximum value to 1 TB for 64-bit system.

- Print warning if the fts cache exceeds the innodb_ft_cache_size
and also unlock the cache if fts cache memory reduces less than
innodb_ft_cache_size.
This commit is contained in:
Thirunarayanan Balathandayuthapani
2022-02-24 19:42:43 +05:30
parent a6f258e47f
commit a76731e1a1
10 changed files with 135 additions and 30 deletions
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13
mysql-test/suite/sys_vars/r/innodb_ft_cache_size_basic.result
View File

@ -16,6 +16,15 @@ select * from information_schema.session_variables where variable_name='innodb_f
VARIABLE_NAME VARIABLE_VALUE
INNODB_FT_CACHE_SIZE 8000000
set global innodb_ft_cache_size=1;
ERROR HY000: Variable 'innodb_ft_cache_size' is a read only variable
Warnings:
Warning 1292 Truncated incorrect innodb_ft_cache_size value: '1'
SHOW VARIABLES like 'innodb_ft_cache_size';
Variable_name Value
innodb_ft_cache_size 1600000
set session innodb_ft_cache_size=1;
ERROR HY000: Variable 'innodb_ft_cache_size' is a read only variable
ERROR HY000: Variable 'innodb_ft_cache_size' is a GLOBAL variable and should be set with SET GLOBAL
set global innodb_ft_cache_size=512*1024*1024;
SHOW VARIABLES like 'innodb_ft_cache_size';
Variable_name Value
innodb_ft_cache_size 536870912
set global innodb_ft_cache_size=default;

13
mysql-test/suite/sys_vars/r/innodb_ft_total_cache_size_basic.result
View File

@ -16,6 +16,15 @@ select * from information_schema.session_variables where variable_name='innodb_f
VARIABLE_NAME VARIABLE_VALUE
INNODB_FT_TOTAL_CACHE_SIZE 640000000
set global innodb_ft_total_cache_size=1;
ERROR HY000: Variable 'innodb_ft_total_cache_size' is a read only variable
Warnings:
Warning 1292 Truncated incorrect innodb_ft_total_cache_size value: '1'
set session innodb_ft_total_cache_size=1;
ERROR HY000: Variable 'innodb_ft_total_cache_size' is a read only variable
ERROR HY000: Variable 'innodb_ft_total_cache_size' is a GLOBAL variable and should be set with SET GLOBAL
SHOW VARIABLES like 'innodb_ft_total_cache_size';
Variable_name Value
innodb_ft_total_cache_size 32000000
set global innodb_ft_total_cache_size=512*1024*1024;
show variables like 'innodb_ft_total_cache_size';
Variable_name Value
innodb_ft_total_cache_size 536870912
set global innodb_ft_total_cache_size=default;