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Increased back_log to 150, but not more than max_connections.

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- This was done to get better performance when doing a lot of connections.
Ensure that thread_cache_size is not larger than max_connections (trivial optimizations).
Fixed that the --host_cache_size=# startup option works

mysql-test/r/variables.result:
  Increase back_log to 150
sql/hostname.cc:
  Fixed that the --host_cache_size=# startup option works
sql/mysqld.cc:
  Ensure that back_log and thread_cache_size is not set higher than max_connections (as this would not make any sense).
sql/sys_vars.cc:
  Increased back_log to 150
This commit is contained in:
Michael Widenius
2013-12-27 13:00:14 +02:00
parent 02765f4c61
commit e41788d2b2
5 changed files with 16 additions and 9 deletions
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10
mysql-test/suite/sys_vars/r/back_log_basic.result
View File

@ -1,20 +1,20 @@
select @@global.back_log;
@@global.back_log
50
150
select @@session.back_log;
ERROR HY000: Variable 'back_log' is a GLOBAL variable
show global variables like 'back_log';
Variable_name Value
back_log 50
back_log 150
show session variables like 'back_log';
Variable_name Value
back_log 50
back_log 150
select * from information_schema.global_variables where variable_name='back_log';
VARIABLE_NAME VARIABLE_VALUE
BACK_LOG 50
BACK_LOG 150
select * from information_schema.session_variables where variable_name='back_log';
VARIABLE_NAME VARIABLE_VALUE
BACK_LOG 50
BACK_LOG 150
set global back_log=1;
ERROR HY000: Variable 'back_log' is a read only variable
set session back_log=1;