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Adjust the configuration options, as discussed on the maria-developers@ mailing list. The option to hint a transaction to not be replicated in parallel is now called @@skip_parallel_replication, consistent with @@skip_replication. And the --slave-parallel-mode is now simplified to have just one of the following values: none minimal conservative optimistic aggressive This reflects successively harder efforts to find opportunities to run things in parallel on the slave. It allows to extend the server with more automatic heuristics in the future without having to introduce a new configuration option for each and every one.
51 lines
1.5 KiB
Plaintext
51 lines
1.5 KiB
Plaintext
SET SESSION slave_parallel_mode= none;
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ERROR HY000: Variable 'slave_parallel_mode' is a GLOBAL variable and should be set with SET GLOBAL
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SELECT @@slave_parallel_mode;
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@@slave_parallel_mode
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minimal
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SELECT @@m1.slave_parallel_mode;
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@@m1.slave_parallel_mode
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NULL
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Warnings:
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Warning 1617 There is no master connection 'm1'
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Warning 1617 There is no master connection 'm1'
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CHANGE MASTER TO master_host='127.0.0.1', master_port=3310, master_user='root';
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SELECT @@``.slave_parallel_mode;
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@@``.slave_parallel_mode
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minimal
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SELECT @@slave_parallel_mode;
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@@slave_parallel_mode
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minimal
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Parallel_Mode = 'minimal'
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SELECT @@m2.slave_parallel_mode;
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@@m2.slave_parallel_mode
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NULL
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Warnings:
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Warning 1617 There is no master connection 'm2'
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Warning 1617 There is no master connection 'm2'
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SET GLOBAL m2.slave_parallel_mode = none;
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Warnings:
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Warning 1617 There is no master connection 'm2'
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CHANGE MASTER 'm1' TO master_host='127.0.0.1', master_port=3311, master_user='root';
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SELECT @@m1.slave_parallel_mode;
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@@m1.slave_parallel_mode
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optimistic
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Parallel_Mode = 'minimal'
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SET GLOBAL m1.slave_parallel_mode= conservative;
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Parallel_Mode = 'minimal'
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SET default_master_connection= 'm1';
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SELECT @@slave_parallel_mode;
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@@slave_parallel_mode
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conservative
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SET GLOBAL slave_parallel_mode= aggressive;
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SELECT @@slave_parallel_mode;
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@@slave_parallel_mode
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aggressive
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Parallel_Mode = 'aggressive'
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SET default_master_connection= '';
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SELECT @@slave_parallel_mode;
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@@slave_parallel_mode
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minimal
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RESET SLAVE ALL;
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RESET SLAVE 'm1' ALL;
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