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MDEV-5205 - MariaDB does not start if more than 128 cpu's are available

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- thread_pool_size command line option upper limit increased to 100 000
  (same as for max_connections)
- thread_pool_size system variable upper limit is maximum of 128 or
  the value given at command line
- thread groups are now allocated dynamically

Different limit for command line option and system variable was done to
avoid additional mutex for all_groups and threadpool_max_size.
This commit is contained in:
Sergey Vojtovich
2013-11-05 09:18:59 +04:00
parent 52dea41052
commit fd9f1638ea
10 changed files with 64 additions and 9 deletions
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11
mysql-test/suite/sys_vars/r/thread_pool_size_high.result Normal file
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@ -0,0 +1,11 @@
SELECT @@global.thread_pool_size;
@@global.thread_pool_size
200
SET @@global.thread_pool_size=150;
SET @@global.thread_pool_size=200;
SET @@global.thread_pool_size=201;
Warnings:
Warning 1292 Truncated incorrect thread_pool_size value: '201'
SELECT @@global.thread_pool_size;
@@global.thread_pool_size
200

1
mysql-test/suite/sys_vars/t/thread_pool_size_basic.opt Normal file
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--loose-thread-handling=pool-of-threads

1
mysql-test/suite/sys_vars/t/thread_pool_size_basic.test
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@ -1,6 +1,7 @@
# uint global
--source include/not_windows.inc
--source include/not_embedded.inc
--source include/have_pool_of_threads.inc
SET @start_global_value = @@global.thread_pool_size;
#

1
mysql-test/suite/sys_vars/t/thread_pool_size_high.opt Normal file
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--loose-thread-handling=pool-of-threads --loose-thread-pool-size=200

14
mysql-test/suite/sys_vars/t/thread_pool_size_high.test Normal file
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--source include/not_windows.inc
--source include/not_embedded.inc
--source include/have_pool_of_threads.inc
SELECT @@global.thread_pool_size;
# Set lower value
SET @@global.thread_pool_size=150;
# Set original value
SET @@global.thread_pool_size=200;
# Try higher value
SET @@global.thread_pool_size=201;
SELECT @@global.thread_pool_size;