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Bug was introduced by cset 1.1659.14.1. Before it server was silently ignoring that lock can't be acquired because it already acquired. This patch makes make_global_read_lock_block_commit() return without error if lock already acquired. mysql-test/t/flush_table.test: Test case for bug#11934 FLUSH TABLES WITH READ LOCK hangs client. mysql-test/r/flush_table.result: Test case for bug#11934 FLUSH TABLES WITH READ LOCK hangs client. sql/lock.cc: Fix bug #11934 Two sequential FLUSH TABLES WITH READ LOCK hangs client. Make make_global_read_lock_block_commit() return without error if lock already acquired.
84 lines
2.0 KiB
Plaintext
84 lines
2.0 KiB
Plaintext
# TODO: Only run this if we have privilege to do flush table
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#
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# Test of flush table
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#
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--disable_warnings
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drop table if exists t1,t2;
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--enable_warnings
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create table t1 (a int not null auto_increment primary key);
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insert into t1 values(0);
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lock table t1 read;
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flush table t1;
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check table t1;
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drop table t1;
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#
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# In the following test FLUSH TABLES produces a deadlock
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# (hang forever) if the fix for BUG #3565 is missing.
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# And it shows that handler tables are re-opened after flush (BUG #4286).
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#
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create table t1(table_id char(20) primary key);
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create table t2(table_id char(20) primary key);
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insert into t1 values ('test.t1');
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insert into t1 values ('');
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insert into t2 values ('test.t2');
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insert into t2 values ('');
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handler t1 open as a1;
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handler t1 open as a2;
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handler t2 open;
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handler a1 read first limit 9;
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handler a2 read first limit 9;
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handler t2 read first limit 9;
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flush tables;
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handler a1 read first limit 9;
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handler a2 read first limit 9;
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handler t2 read first limit 9;
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#
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--error 1066
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handler t1 open as a1;
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--error 1066
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handler t1 open as a2;
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--error 1066
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handler t2 open;
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handler a1 read first limit 9;
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handler a2 read first limit 9;
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handler t2 read first limit 9;
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flush table t1;
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handler a1 read first limit 9;
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handler a2 read first limit 9;
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handler t2 read first limit 9;
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flush table t2;
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handler t2 close;
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drop table t1;
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drop table t2;
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#
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# The fix for BUG #4286 cannot restore the position after a flush.
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#
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create table t1(table_id char(20) primary key);
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insert into t1 values ('Record-01');
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insert into t1 values ('Record-02');
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insert into t1 values ('Record-03');
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insert into t1 values ('Record-04');
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insert into t1 values ('Record-05');
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handler t1 open;
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handler t1 read first limit 1;
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handler t1 read next limit 1;
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handler t1 read next limit 1;
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flush table t1;
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handler t1 read next limit 1;
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handler t1 read next limit 1;
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handler t1 close;
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drop table t1;
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#
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# Bug #11934 Two sequential FLUSH TABLES WITH READ LOCK hangs client
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#
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FLUSH TABLES WITH READ LOCK ;
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FLUSH TABLES WITH READ LOCK ;
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UNLOCK TABLES;
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# End of 4.1 tests
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