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9edadc29b1
- Changed the performance schema query which gives sampling with event counting. It should fix the issue.
43 lines
1.2 KiB
Plaintext
43 lines
1.2 KiB
Plaintext
--source include/have_innodb.inc
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--source include/have_perfschema.inc
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--source include/have_debug.inc
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--source include/have_debug_sync.inc
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--source include/not_embedded.inc
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select count_star into @init_count from performance_schema.events_waits_summary_global_by_event_name WHERE event_name LIKE '%wait%io%file%innodb%innodb_temp_file%';
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connect (ddl, localhost, root,,);
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update performance_schema.setup_instruments set enabled='yes';
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update performance_schema.setup_consumers set enabled='yes';
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CREATE TABLE t1 (a serial, b varchar(255)) ENGINE=InnoDB;
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BEGIN;
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let $n=247;
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--disable_query_log
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while ($n) {
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dec $n;
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INSERT INTO t1 SELECT NULL, REPEAT('b',255);
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}
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--enable_query_log
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COMMIT;
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SET DEBUG_SYNC = 'row_log_apply_before SIGNAL go WAIT_FOR gone';
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send ALTER TABLE t1 ADD INDEX(b), ALGORITHM=INPLACE;
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connection default;
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SET DEBUG_SYNC = 'now WAIT_FOR go';
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select count_star into @final_count from performance_schema.events_waits_summary_global_by_event_name WHERE event_name LIKE '%wait%io%file%innodb%innodb_temp_file%';
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SELECT @final_count - @init_count;
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#--exec lsof -p `pidof mysqld`
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SET DEBUG_SYNC = 'now SIGNAL gone';
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connection ddl;
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reap;
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disconnect ddl;
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connection default;
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SET DEBUG_SYNC = 'RESET';
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DROP TABLE t1;
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