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91 lines
4.4 KiB
Text
91 lines
4.4 KiB
Text
###############################################################################
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# #
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# Variable Name: wait_timeout #
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# Scope: GLOBAL | SESSION #
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# Access Type: Dynamic #
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# Data Type: numeric #
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# Default Value: #
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# Range: #
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# #
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# #
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# Creation Date: 2008-03-07 #
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# Author: Salman Rawala #
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# #
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# Modified: HHunger 2008-08-27 Simplified the test and replaced the sleeps. #
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# #
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# Description: Test Cases of Dynamic System Variable wait_timeout #
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# that checks the functionality of this variable #
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# #
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# Reference: #
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# http://dev.mysql.com/doc/refman/5.1/en/server-system-variables.html #
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# #
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###############################################################################
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--source include/not_embedded.inc
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SET @start_value= @@global.wait_timeout;
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--echo '#--------------------FN_DYNVARS_186_01-------------------------#'
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#######################################################################
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# 1. test of scope session
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#######################################################################
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SET @start_time= UNIX_TIMESTAMP();
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connect (test_con1, localhost, root,,);
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connection test_con1;
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# If not explicitly changed, @@session.wait_timeout equals @@global.wait_timeout.
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SELECT @@session.wait_timeout = @@global.wait_timeout AS 'Expect 1';
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# Find a small value <> @@global.wait_timeout.
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let $session_value =
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`SELECT IF(@@global.wait_timeout <> 2 OR @@global.wait_timeout IS NULL, 2, 3)`;
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--replace_result $session_value <session_value>
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eval SET @@session.wait_timeout = $session_value;
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connect (test_con2, localhost, root,,);
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connection test_con2;
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--replace_result $session_value <session_value>
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eval SET @@session.wait_timeout = $session_value - 1;
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connection default;
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--echo wait until connections ready
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let $wait_condition= SELECT COUNT(*) = 1 FROM information_schema.processlist;
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--source include/wait_condition.inc
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SELECT info FROM information_schema.processlist;
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--echo '#--------------------FN_DYNVARS_186_03-------------------------#'
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#######################################################################
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# 2. test of scope global
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#######################################################################
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# Find a small value <> @@global.wait_timeout.
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let $global_value = $session_value + 1;
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--replace_result $global_value <global_value>
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eval SET @@global.wait_timeout= $global_value;
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# Changing the @@global.wait_timeout has no influence on the
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# @@session.wait_timeout of already established sessions.
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SELECT @@session.wait_timeout = @start_value AS 'Expect 1';
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connect (test_con3, localhost, root,,);
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connection test_con3;
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# If not explicitly changed, @@session.wait_timeout equals @@global.wait_timeout.
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SELECT @@session.wait_timeout = @@global.wait_timeout AS 'Expect 1';
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connection default;
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# We can be sure that the connections test_con1 and test_con2 must be
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# established because both have already executed a SET @@session.wait_timeout.
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# This means they are or at least were visible within the processlist.
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# Therefore we can now simply wait till both disappear from the processlist.
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let $wait_condition= SELECT COUNT(*) = 1 FROM information_schema.processlist;
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--source include/wait_condition.inc
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SELECT info FROM information_schema.processlist;
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--replace_result $global_value <global_value> $session_value <session_value>;
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eval SELECT UNIX_TIMESTAMP() - @start_time >= $global_value + $session_value;
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SET @@global.wait_timeout= @start_value;
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