Details
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Bug
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Status: Closed (View Workflow)
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Major
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Resolution: Fixed
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5.5(EOL), 10.0(EOL), 10.1(EOL)
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None
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Windows
Description
2 or more different servers can "bind" to the same pipe name.
The effects can be interesting, as the client never knows which server it connects to.
My tests with 2 servers show that client would connect them into "round-robin" fashion
I.e I started 2 servers, with --skip-networking --enable-named-pipe, from different directories.
client connects/quits, connects again and ends up on the different server than the 1st time.
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PS D:\work\server\xxx> .\client\Debug\mysql -uroot --protocol=pipe
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Welcome to the MariaDB monitor. Commands end with ; or \g.
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Your MariaDB connection id is 4
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Server version: 10.2.2-MariaDB-debug Source distribution
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Copyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others.
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Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
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MariaDB [(none)]> show variables like 'character_sets_dir';
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+--------------------+------------------------------------------------------+
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| Variable_name | Value |
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+--------------------+------------------------------------------------------+
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| character_sets_dir | D:\work\10.2-wlad-batch-mode\xxx\sql\share\charsets\ |
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+--------------------+------------------------------------------------------+
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1 row in set (0.00 sec)
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MariaDB [(none)]> quit
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Bye
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PS D:\work\server\xxx> .\client\Debug\mysql -uroot --protocol=pipe
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Welcome to the MariaDB monitor. Commands end with ; or \g.
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Your MariaDB connection id is 4
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Server version: 10.2.2-MariaDB-debug Source distribution
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Copyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others.
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Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
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MariaDB [(none)]> show variables like 'character_sets_dir';
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+--------------------+----------------------------------------+
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| Variable_name | Value |
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+--------------------+----------------------------------------+
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| character_sets_dir | D:\work\server\xxx\sql\share\charsets\ |
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+--------------------+----------------------------------------+
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