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51a3d3668f
a race between updating and checking Max_used_connections. This is done in a loop until either disconnect finished or timeout expired. In a latter case the test will fail. mysql-test/r/status.result: Update result to match changes in test case. mysql-test/t/status.test: Close extra conections in previous test. In test for bug#15933 we have to wait for all disconnects to finish to avoid a race between updating and checking Max_used_connections. This is done in a loop until either disconnect finished or timeout expired. In a latter case the test will fail. Use con1, con2, con3 instead of con3, con4, con5.
45 lines
1.1 KiB
Text
45 lines
1.1 KiB
Text
flush status;
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show status like 'Table_lock%';
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Variable_name Value
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Table_locks_immediate 0
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Table_locks_waited 0
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SET SQL_LOG_BIN=0;
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drop table if exists t1;
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create table t1(n int) engine=myisam;
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insert into t1 values(1);
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lock tables t1 read;
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unlock tables;
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lock tables t1 read;
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update t1 set n = 3;
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unlock tables;
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show status like 'Table_lock%';
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Variable_name Value
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Table_locks_immediate 3
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Table_locks_waited 1
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drop table t1;
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select 1;
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1
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1
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show status like 'last_query_cost';
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Variable_name Value
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Last_query_cost 0.000000
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FLUSH STATUS;
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SHOW STATUS LIKE 'max_used_connections';
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Variable_name Value
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Max_used_connections 1
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SET @save_thread_cache_size=@@thread_cache_size;
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SET GLOBAL thread_cache_size=3;
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SHOW STATUS LIKE 'max_used_connections';
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Variable_name Value
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Max_used_connections 3
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FLUSH STATUS;
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SHOW STATUS LIKE 'max_used_connections';
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Variable_name Value
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Max_used_connections 2
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SHOW STATUS LIKE 'max_used_connections';
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Variable_name Value
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Max_used_connections 3
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SHOW STATUS LIKE 'max_used_connections';
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Variable_name Value
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Max_used_connections 4
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SET GLOBAL thread_cache_size=@save_thread_cache_size;
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