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849af74a48
Split the test case so that a server restart is not needed. Reduce the test cases and use a simpler mechanism for triggering and waiting for purge. fil_table_accessible(): Check if a table can be accessed without enjoying MDL protection.
67 lines
1.6 KiB
Plaintext
67 lines
1.6 KiB
Plaintext
--source include/have_innodb.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/count_sessions.inc
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--echo #
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--echo # Bug #23070734 CONCURRENT TRUNCATE TABLES CAUSE STALLS
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--echo #
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create table t1 (f1 int ,f2 int,key(f2)) engine=innodb;
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begin;
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insert into t1 values (10,45),(20,78),(30,88),(40,23),(50,78),(60,11),(70,56),(80,90);
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delete from t1;
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connect (con2,localhost,root,,);
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# Stop the purge thread
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START TRANSACTION WITH CONSISTENT SNAPSHOT;
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connection default;
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# Ensure that the history list length will actually be decremented by purge.
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SET @saved_frequency = @@GLOBAL.innodb_purge_rseg_truncate_frequency;
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SET GLOBAL innodb_purge_rseg_truncate_frequency = 1;
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commit;
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connect (con1,localhost,root,,);
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SET DEBUG_SYNC= 'buffer_pool_scan SIGNAL started WAIT_FOR finish_scan';
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send truncate table t1;
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connection con2;
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SET DEBUG_SYNC= 'now WAIT_FOR started';
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# Allow purge to proceed, by discarding our read view.
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COMMIT;
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disconnect con2;
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connection default;
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# Wait for everything to be purged.
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let $wait_counter= 300;
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while ($wait_counter)
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{
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--replace_regex /.*History list length ([0-9]+).*/\1/
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let $remaining= `SHOW ENGINE INNODB STATUS`;
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if ($remaining == 'InnoDB 0')
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{
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let $wait_counter= 0;
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}
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if ($wait_counter)
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{
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real_sleep 0.1;
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dec $wait_counter;
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}
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}
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echo $remaining transactions not purged;
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SET GLOBAL innodb_purge_rseg_truncate_frequency = @saved_frequency;
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SET DEBUG_SYNC = 'now SIGNAL finish_scan';
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SET DEBUG_SYNC = 'RESET';
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connection con1;
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reap;
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disconnect con1;
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connection default;
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drop table t1;
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--source include/wait_until_count_sessions.inc
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