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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.
15 lines
580 B
PHP
15 lines
580 B
PHP
# Include this script only after using shutdown_mysqld.inc
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# where $_expect_file_name was initialized.
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# Write file to make mysql-test-run.pl start up the server again
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if ($galera_wsrep_start_position != '') {
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--echo Using --wsrep-start-position when starting mysqld ...
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--write_line "restart:$start_mysqld_params --wsrep-start-position=$galera_wsrep_start_position" $_expect_file_name
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--let $galera_wsrep_start_position = 0
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}
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if ($galera_wsrep_start_position == '') {
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--write_line "restart:$start_mysqld_params" $_expect_file_name
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}
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--source include/galera_wait_ready.inc
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