parsec plugin not unloaded during mtr test run

unit.conc_connection                     w15 [ pass ]      2

MTR's internal check of the test case 'unit.conc_connection' failed.

This means that the test case does not preserve the state that existed

before the test case was executed.  Most likely the test case did not

do a proper clean-up. It could also be caused by the previous test run

by this thread, if the server wasn't restarted.

This is the diff of the states of the servers before and after the

test case was executed:

mysqltest: Logging to '/home/buildbot/amd64-ubuntu-2004-debug/build/mysql-test/var/15/tmp/check-mysqld_1.log'.

mysqltest: Results saved in '/home/buildbot/amd64-ubuntu-2004-debug/build/mysql-test/var/15/tmp/check-mysqld_1.result'.

mysqltest: Connecting to server localhost:19660 (socket /home/buildbot/amd64-ubuntu-2004-debug/build/mysql-test/var/tmp/15/mysqld.1.sock) as 'root', connection 'default', attempt 0 ...

mysqltest: ... Connected.

mysqltest: Start processing test commands from './include/check-testcase.inc' ...

mysqltest: ... Done processing test commands.

--- /home/buildbot/amd64-ubuntu-2004-debug/build/mysql-test/var/15/tmp/check-mysqld_1.result	2024-11-21 07:27:00.936421798 +0000

+++ /home/buildbot/amd64-ubuntu-2004-debug/build/mysql-test/var/15/tmp/check-mysqld_1.reject	2024-11-21 07:27:49.359574547 +0000

@@ -900,7 +900,7 @@

 mysql.help_category	920235239

 mysql.help_keyword	1315967545

 mysql.help_relation	3123006815

-mysql.plugin	0

+mysql.plugin	768818758

 mysql.procs_priv	0

 mysql.roles_mapping	0

 mysql.tables_priv	454043219

@@ -909,7 +909,7 @@

 mysql.time_zone_name	2502923589

 mysql.time_zone_transition	3719776009

 mysql.time_zone_transition_type	267780600

-mysql.global_priv	3162002917

+mysql.global_priv	2548605602

 PLUGIN_NAME	PLUGIN_VERSION	PLUGIN_STATUS	PLUGIN_TYPE	PLUGIN_TYPE_VERSION	PLUGIN_LIBRARY	PLUGIN_LIBRARY_VERSION	PLUGIN_AUTHOR	PLUGIN_DESCRIPTION	PLUGIN_LICENSE	LOAD_OPTION	PLUGIN_MATURITY	PLUGIN_AUTH_VERSION

 binlog	2.0	ACTIVE	DAEMON	110701.0	NULL	NULL	MySQL AB	This is a plugin to represent the binlog in a transaction	GPL	FORCE	Stable	2.0

 mysql_native_password	1.0	ACTIVE	AUTHENTICATION	2.2	NULL	NULL	R.J.Silk, Sergei Golubchik	Native MySQL authentication	GPL	FORCE	Stable	1.0

@@ -985,5 +985,6 @@

 THREAD_POOL_STATS	1.0	DISABLED	INFORMATION SCHEMA	110701.0	NULL	NULL	Vladislav Vaintroub	Provides performance counter information for threadpool.	GPL	OFF	Stable	1.0

 THREAD_POOL_WAITS	1.0	DISABLED	INFORMATION SCHEMA	110701.0	NULL	NULL	Vladislav Vaintroub	Provides wait counters for threadpool.	GPL	OFF	Stable	1.0

 partition	1.0	DISABLED	STORAGE ENGINE	110701.0	NULL	NULL	Mikael Ronstrom, MySQL AB	Partition Storage Engine Helper	GPL	OFF	Stable	1.0

+parsec	1.0	ACTIVE	AUTHENTICATION	2.2	auth_parsec.so	1.15	Nikita Maliavin	Password Authentication using Response Signed with Elliptic Curve	GPL	ON	Beta	1.0

 VARIABLE_NAME	VARIABLE_VALUE

 DEBUG_SYNC	ON - current signals: ''

Result length mismatch

not ok