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061adae9a2
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.
38 lines
1.1 KiB
Text
38 lines
1.1 KiB
Text
#
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# Specific tests for case-insensitive file systems
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# i.e. lower_case_filesystem=ON
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#
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-- source include/have_case_insensitive_file_system.inc
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# Embedded server does not support restarting.
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--source include/not_embedded.inc
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--echo #
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--echo # Bug#20198490 : LOWER_CASE_TABLE_NAMES=0 ON WINDOWS LEADS TO PROBLEMS
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--echo #
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let SEARCH_FILE= $MYSQLTEST_VARDIR/log/my_restart.err;
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--error 0,1
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--remove_file $SEARCH_FILE
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#Shutdown the server
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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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#Start the server with --lower_case_table_names=0 in Windows.
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--enable_reconnect
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--error 1
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--exec $MYSQLD_CMD --lower_case_table_names=0 > $SEARCH_FILE 2>&1
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#Search for the error messege in the server error log.
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let SEARCH_PATTERN= \[ERROR\] The server option \'lower_case_table_names\' is configured to use case sensitive table names;
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--source include/search_pattern_in_file.inc
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#Restart the server
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--write_line restart $MYSQLTEST_VARDIR/tmp/mysqld.1.expect
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--source include/wait_until_connected_again.inc
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#Cleanup
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--error 0,1
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--remove_file $SEARCH_FILE
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