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	On Windows systems, occurrences of ERROR_SHARING_VIOLATION due to conflicting share modes between processes accessing the same file can result in CreateFile failures. mysys' my_open() already incorporates a workaround by implementing wait/retry logic on Windows. But this does not help if files are opened using shell redirection like mysqltest traditionally did it, i.e via --echo exec "some text" > output_file In such cases, it is cmd.exe, that opens the output_file, and it won't do any sharing-violation retries. This commit addresses the issue by introducing a new built-in command, 'write_line', in mysqltest. This new command serves as a brief alternative to 'write_file', with a single line output, that also resolves variables like "exec" would. Internally, this command will use my_open(), and therefore retry-on-error logic. Hopefully this will eliminate the very sporadic "can't open file because it is used by another process" error on CI.
		
			
				
	
	
		
			26 lines
		
	
	
	
		
			791 B
		
	
	
	
		
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			26 lines
		
	
	
	
		
			791 B
		
	
	
	
		
			Text
		
	
	
	
	
	
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--source include/not_embedded.inc
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# We used an invalid command-line option and InnoDB failed to start.
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# Ignore all related warnings
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call mtr.add_suppression("InnoDB");
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--vertical_results
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SELECT
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PLUGIN_NAME,PLUGIN_STATUS,PLUGIN_TYPE,PLUGIN_LIBRARY,PLUGIN_LIBRARY_VERSION,LOAD_OPTION
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FROM INFORMATION_SCHEMA.PLUGINS WHERE plugin_name = 'innodb';
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--echo #
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--echo # MDEV-6351 --plugin=force has no effect for built-in plugins
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--echo #
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--write_line wait $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
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--shutdown_server
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--source include/wait_until_disconnected.inc
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--error 1
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--exec $MYSQLD_CMD --innodb=force --innodb-page-size=6000 --disable-log-error
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--write_line restart $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
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--enable_reconnect
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--source include/wait_until_connected_again.inc
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--disable_reconnect
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