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6a029cc54c
The reason for the bug above is unclear but - Modify pfs_upgrade so that it's result is easier to analyze in case something fails - Fix several minor weaknesses which could cause that a successing test (either an already existing or a to be developed one) fails because of imperfect cleanup, too slow disconnected sessions etc. should either fix the bug or reduce it's probability or at least make the analysis of failures easier.
92 lines
2.6 KiB
Plaintext
92 lines
2.6 KiB
Plaintext
# 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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--source include/wait_until_disconnected.inc
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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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