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93f5d40656
The issue was that we sent two different signals to different threads after each other. The DEBUG_SYNC functionality cannot handle this (as the signal is stored in a global variable) and the first one can get lost. Fixed by using the same signal for both threads.
40 lines
1.1 KiB
Plaintext
40 lines
1.1 KiB
Plaintext
--source include/have_debug.inc
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create or replace table t1 (a int primary key, b int, c int, key(b),key(c)) engine=myisam;
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insert into t1 (a) values(1);
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set debug_sync='RESET';
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connect (con1, localhost, root,,);
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connect (con2, localhost, root,,);
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connection default;
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backup stage start;
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backup stage flush;
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select * from t1;
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set debug_sync='after_purge_tables SIGNAL parked WAIT_FOR go';
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set debug_sync='before_tc_release_table SIGNAL parked2 WAIT_FOR go2';
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--send backup stage BLOCK_DDL
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--connection con1
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set debug_sync='now WAIT_FOR parked';
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select * from t1;
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set debug_sync='now SIGNAL go';
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set debug_sync='now WAIT_FOR parked2';
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set debug_sync='before_wait_for_refs SIGNAL waiting WAIT_FOR go2';
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--send drop table t1;
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--connection con2
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set debug_sync='now WAIT_FOR waiting';
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set debug_sync='now SIGNAL go2';
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# Write out show processlist if the debug sync point times out
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let $wait_condition= select count(*)=0 from information_schema.processlist where state like "%debug%";
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source include/wait_condition.inc;
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--connection default
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--reap
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--connection con1
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--reap
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connection default;
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disconnect con1;
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disconnect con2;
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set debug_sync='RESET';
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