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https://github.com/MariaDB/server.git
synced 2025-05-07 04:01:59 +03:00
60 lines
1.2 KiB
Plaintext
60 lines
1.2 KiB
Plaintext
set global innodb_lock_wait_timeout=42;
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connect a,localhost,root,,;
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connect b,localhost,root,,;
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connection a;
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select @@innodb_lock_wait_timeout;
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@@innodb_lock_wait_timeout
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42
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set innodb_lock_wait_timeout=1;
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select @@innodb_lock_wait_timeout;
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@@innodb_lock_wait_timeout
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1
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connection b;
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select @@innodb_lock_wait_timeout;
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@@innodb_lock_wait_timeout
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42
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set global innodb_lock_wait_timeout=347;
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select @@innodb_lock_wait_timeout;
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@@innodb_lock_wait_timeout
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42
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set innodb_lock_wait_timeout=10;
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select @@innodb_lock_wait_timeout;
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@@innodb_lock_wait_timeout
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10
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connect c,localhost,root,,;
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connection c;
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select @@innodb_lock_wait_timeout;
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@@innodb_lock_wait_timeout
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347
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disconnect c;
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connection a;
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SET @connection_b_id = <connection_b_id>;
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create table t1(a int primary key)engine=innodb;
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begin;
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insert into t1 values(1),(2),(3);
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connection b;
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select * from t1 for update;
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connection a;
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commit;
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connection b;
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a
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1
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2
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3
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connection a;
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begin;
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insert into t1 values(4);
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connection b;
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set innodb_lock_wait_timeout=3;
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select * from t1 for update;
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connection a;
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commit;
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connection b;
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ERROR HY000: Lock wait timeout exceeded; try restarting transaction
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disconnect b;
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connection a;
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disconnect a;
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connection default;
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drop table t1;
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set global innodb_lock_wait_timeout=<initial_timeout>;
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