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0c79de2419
Tasks:-
Changes in wsrep_dirty_reads variable
1.) Global + Session scope (Current: session-only)
2.) Can be set using command line.
3.) Allow all commands that do not change data (besides SELECT)
4.) Allow prepared Statements that do not change data
5.) Works with wsrep_sync_wait enabled
49 lines
1.2 KiB
Plaintext
49 lines
1.2 KiB
Plaintext
--source include/have_wsrep.inc
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--echo #
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--echo # wsrep_dirty_reads
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--echo #
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--echo # save the initial value
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SET @wsrep_dirty_reads_session_saved = @@session.wsrep_dirty_reads;
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--echo # default
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SELECT @@global.wsrep_dirty_reads;
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SELECT @@session.wsrep_dirty_reads;
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--echo
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--echo # valid values for session
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SET @@session.wsrep_dirty_reads=OFF;
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SELECT @@session.wsrep_dirty_reads;
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SET @@session.wsrep_dirty_reads=ON;
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SELECT @@session.wsrep_dirty_reads;
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SET @@session.wsrep_dirty_reads=default;
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SELECT @@session.wsrep_dirty_reads;
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--echo
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--echo # valid values for global
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SET @@global.wsrep_dirty_reads=OFF;
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SELECT @@global.wsrep_dirty_reads;
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SET @@global.wsrep_dirty_reads=ON;
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SELECT @@global.wsrep_dirty_reads;
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SET @@global.wsrep_dirty_reads=default;
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SELECT @@global.wsrep_dirty_reads;
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--echo
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--echo # invalid values
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--error ER_WRONG_VALUE_FOR_VAR
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SET @@session.wsrep_dirty_reads=NULL;
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--error ER_WRONG_VALUE_FOR_VAR
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SET @@session.wsrep_dirty_reads='junk';
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--error ER_WRONG_VALUE_FOR_VAR
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SET @@global.wsrep_dirty_reads=NULL;
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--error ER_WRONG_VALUE_FOR_VAR
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SET @@global.wsrep_dirty_reads='junk';
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--echo
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--echo # restore the initial values
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SET @@session.wsrep_dirty_reads = @wsrep_dirty_reads_session_saved;
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--echo # End of test
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