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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.
59 lines
1.7 KiB
PHP
59 lines
1.7 KiB
PHP
# ==== Purpose ====
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#
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# Start the server given by $rpl_server_number. This should normally
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# be invoked after rpl_stop_server.inc.
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#
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# ==== Usage ====
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#
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# --let $rpl_server_number= N
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# [--let $rpl_server_parameters= --flag1 --flag2 ...]
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# [--let $rpl_debug= 1]
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# [--let $rpl_server_error= 0]
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# --source include/rpl_start_server.inc
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#
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# Parameters:
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#
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# $rpl_server_number
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# Number to identify the server that needs to reconnect. 1 is the
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# master server, 2 the slave server, 3 the 3rd server, and so on.
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# Cf. include/rpl_init.inc
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#
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# $rpl_server_parameters
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# If set, extra parameters given by this variable are passed to
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# mysqld.
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#
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# $rpl_server_error
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# If set, failure of the server startup is expected.
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#
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# $rpl_debug
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# See include/rpl_init.inc
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#
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# ==== See also ====
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#
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# rpl_stop_server.inc
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# rpl_restart_server.inc
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--let $_rpl_start_server_command= restart
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--let $_rpl_start_server_args= [server_number=$rpl_server_number]
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if ($rpl_server_parameters)
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{
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--let $_rpl_start_server_command= restart:$rpl_server_parameters
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--let $_rpl_start_server_args= [server_number=$rpl_server_number parameters: $rpl_server_parameters]
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}
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--let $include_filename= rpl_start_server.inc $_rpl_start_server_args
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--source include/begin_include_file.inc
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--let $rpl_connection_name= server_$rpl_server_number
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--source include/rpl_connection.inc
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# Write file to make mysql-test-run.pl start up the server again
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--write_line "$_rpl_start_server_command" $MYSQLTEST_VARDIR/tmp/mysqld.$rpl_server_number.expect
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if (!$rpl_server_error)
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{
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--source include/rpl_reconnect.inc
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--let $include_filename= rpl_start_server.inc $_rpl_start_server_args
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--source include/end_include_file.inc
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}
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