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91 lines
2.6 KiB
Text
91 lines
2.6 KiB
Text
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# Copyright (C) 2009 Sun Microsystems, Inc
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# Tests for PERFORMANCE_SCHEMA
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#
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# Test the effect of a flush tables with read lock on SETUP_ tables.
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--source include/not_embedded.inc
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--source include/have_perfschema.inc
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use performance_schema;
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grant SELECT, UPDATE, LOCK TABLES on performance_schema.* to pfsuser@localhost;
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flush privileges;
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--echo connect (con1, localhost, pfsuser, , test);
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connect (con1, localhost, pfsuser, , test);
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lock tables performance_schema.SETUP_INSTRUMENTS read;
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--disable_result_log
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select * from performance_schema.SETUP_INSTRUMENTS;
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--enable_result_log
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unlock tables;
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lock tables performance_schema.SETUP_INSTRUMENTS write;
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update performance_schema.SETUP_INSTRUMENTS set enabled='NO';
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update performance_schema.SETUP_INSTRUMENTS set enabled='YES';
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unlock tables;
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--echo connection default;
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connection default;
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flush tables with read lock;
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--echo connection con1;
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connection con1;
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lock tables performance_schema.SETUP_INSTRUMENTS read;
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--disable_result_log
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select * from performance_schema.SETUP_INSTRUMENTS;
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--enable_result_log
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unlock tables;
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# This will block
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--send
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lock tables performance_schema.SETUP_INSTRUMENTS write;
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--echo connection default;
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connection default;
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let $wait_condition= select 1 from performance_schema.EVENTS_WAITS_CURRENT where event_name like "wait/synch/cond/sql/COND_global_read_lock";
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--source include/wait_condition.inc
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# Observe the blocked thread in the performance schema :)
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select event_name,
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left(source, locate(":", source)) as short_source,
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timer_end, timer_wait, operation
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from performance_schema.EVENTS_WAITS_CURRENT
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where event_name like "wait/synch/cond/sql/COND_global_read_lock";
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unlock tables;
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connection con1;
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--reap
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update performance_schema.SETUP_INSTRUMENTS set enabled='NO';
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update performance_schema.SETUP_INSTRUMENTS set enabled='YES';
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unlock tables;
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disconnect con1;
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--echo connection default;
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connection default;
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drop user pfsuser@localhost;
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flush privileges;
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