slave_parallel_mode
This page is part of MariaDB's Enterprise Documentation.
The parent of this page is: System Variables for MariaDB Enterprise Server
Topics on this page:
Overview
Controls what transactions are applied in parallel when using --slave-parallel-threads. Possible values: "optimistic" tries to apply most transactional DML in parallel, and handles any conflicts with rollback and retry. "conservative" limits parallelism in an effort to avoid any conflicts. "aggressive" tries to maximise the parallelism, possibly at the cost of increased conflict rate. "minimal" only parallelizes the commit steps of transactions. "none" disables parallel apply completely.
See also: System Variables for MariaDB Enterprise Server 10.6, in 10.6 CS, in 10.5 ES, in 10.5 CS, in 10.4 ES, in 10.4 CS, in 10.3 ES, in 10.3 CS, in 10.2 ES, and in 10.2 CS
DETAILS
PARAMETERS
Command-line | Not Supported |
Configuration file | Not Supported |
Dynamic | Yes |
Scope | Global |
Data Type | ENUM (none, minimal, conservative, optimistic, aggressive) |
Default Value | optimistic |
CHANGE HISTORY
Release Series | History |
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10.6 Enterprise |
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10.6 Community |
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10.5 Enterprise |
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10.5 Community |
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10.4 Enterprise |
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10.4 Community |
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10.3 Enterprise |
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10.3 Community |
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10.2 Enterprise |
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10.2 Community |
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EXTERNAL REFERENCES
Additional information on this topic may be found in the MariaDB Public Knowledge Base.
Information specific to MariaDB SkySQL can be found on the slave_parallel_mode page in the SkySQL Documentation.