84 lines
2.5 KiB
Plaintext
84 lines
2.5 KiB
Plaintext
################################################################################
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# This test resolves Deadlock. GR deadlocks when START GR and
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# UNINSTALL happens at same time.
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#
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# Test:
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# 0. The test requires one server.
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# 1. Setup GR environment and execute START GR.
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# 2. Block start, so we can execute UNINSTALL.
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# 3. Execute UNINSTALL PLUGIN GR.
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# 4. SIGNAL START GR to resume processing.
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# 5. Confirm plugin is UNINSTALLED
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# 6. Cleanup
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#
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################################################################################
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--source include/have_debug.inc
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--source include/have_group_replication_plugin.inc
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--let $rpl_skip_group_replication_start= 1
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--source include/group_replication.inc
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--echo
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--echo # 1. Setup GR environment and execute START GR.
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--echo
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--let $rpl_connection_name= server1
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--source include/rpl_connection.inc
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SET GLOBAL group_replication_bootstrap_group=ON;
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SET GLOBAL group_replication_group_name = '8a94f357-bbbb-22aa-33bb-cccaaa420000';
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--echo
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--echo # 2. Block start, so we can execute UNINSTALL.
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--echo
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## If START GR gets lock and UNINSTALL blocks SQL Query execution,
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## GR used to deadlock.
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SET @debug_save= @@GLOBAL.DEBUG;
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SET @@GLOBAL.DEBUG= 'd,group_replication_wait_on_start';
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--send START GROUP_REPLICATION
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--echo
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--echo # 3. Execute UNINSTALL PLUGIN GR from second connection.
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--echo
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--let $rpl_connection_name= server_1
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--source include/rpl_connection.inc
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# Wait for the debug sync to be reached.
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SET DEBUG_SYNC= "now WAIT_FOR signal.start_waiting";
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UNINSTALL PLUGIN group_replication;
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--echo Wait for group replication plugin to be deleted.
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--let $wait_condition= SELECT COUNT(*)=1 from information_schema.plugins where PLUGIN_NAME like 'group_replication' and PLUGIN_STATUS like 'DELETED';
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--source include/wait_condition.inc
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--echo
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--echo # 4. SIGNAL START GR to resume processing.
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--echo
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SET DEBUG_SYNC= 'now SIGNAL signal.start_continue';
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--let $rpl_connection_name= server1
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--source include/rpl_connection.inc
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--reap
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--echo
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--echo # 5. Confirm plugin is UNINSTALLED.
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--echo
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--echo Wait for group replication plugin to be removed.
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--let $wait_condition= SELECT COUNT(*)=0 from information_schema.plugins where PLUGIN_NAME like 'group_replication';
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--source include/wait_condition.inc
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--echo
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--echo # 6. Cleanup
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--echo
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#Some test executions may uninstall the plugin before the member is ONLINE and writable
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SET GLOBAL read_only = 0;
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--source include/install_group_replication_plugin.inc
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SET @@GLOBAL.DEBUG= @debug_save;
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--source include/group_replication_end.inc
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