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Copy file name to clipboardExpand all lines: pages/public_cloud/public_cloud_databases/mysql_08_advanced_parameters_references/guide.de-de.md
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---
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title: MySQL - Advanced parameters references
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excerpt: This guide lists all the supported advanced parameters that allow you to configure your Public Cloud Databases for MySQL according to your use cases
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updated: 2026-06-18
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updated: 2025-06-18
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---
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<style>
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## Requirements
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- A [Public Cloud project](https://www.ovhcloud.com/de/public-cloud/) in your OVHcloud account
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- A database running on your OVHcloud Public Cloud Databases ([this guide](/pages/public_cloud/public_cloud_databases/databases_01_order_control_panel) can help you to meet this requirement)
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- Access to your [OVHcloud Control Panel](https://www.ovh.com/auth/?action=gotomanager&from=https://www.ovh.de/&ovhSubsidiary=de) or to the [OVHcloud API](https://api.ovh.com/console/)
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- A [Public Cloud project](/links/public-cloud/public-cloud) in your OVHcloud account.
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- A database running on your OVHcloud Public Cloud Databases ([this guide](/pages/public_cloud/public_cloud_databases/databases_01_order_control_panel) can help you to meet this requirement).
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- Access to your [OVHcloud Control Panel](/links/manager) or to the [OVHcloud API](/links/api).
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## Instructions
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@@ -54,16 +54,16 @@ Please refer to this [guide](/pages/public_cloud/public_cloud_databases/database
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### Advanced parameters for MySQL
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Below you can find a summary of every configuration option available for MySQL service:
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Below you can find a summary of every configuration option available for a MySQL service:
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| Parameters |
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|------------|
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|**mysql.connect_timeout**`long`<br>min: `2` max: `3600`<br>The number of seconds that the mysqld server waits for a connect packet before responding with Bad handshake<br>|
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|**mysql.connect_timeout**`long`<br>min: `2` max: `3600`<br>The number of seconds that the mysqld server waits for a connect packet before responding with Bad handshake.<br>|
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|**mysql.default_time_zone**`string`<br>Default server time zone as an offset from UTC (from -12:00 to +12:00), a time zone name, or 'SYSTEM' to use the MySQL server default.<br>|
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|**mysql.group_concat_max_len**`long`<br>min: `4` max: `18446744073709552000`<br>The maximum permitted result length in bytes for the GROUP_CONCAT() function.<br>|
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|**mysql.information_schema_stats_expiry**`long`<br>min: `900` max: `31536000`<br>The time, in seconds, before cached statistics expire<br>|
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|**mysql.innodb_change_buffer_max_size**`long`<br>min: `0` max: `50`<br>Maximum size for the InnoDB change buffer, as a percentage of the total size of the buffer pool. Default is 25<br>|
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|**mysql.innodb_flush_neighbors**`long`<br>min: `0` max: `2`<br>Specifies whether flushing a page from the InnoDB buffer pool also flushes other dirty pages in the same extent (default is 1): 0 - dirty pages in the same extent are not flushed, 1 - flush contiguous dirty pages in the same extent, 2 - flush dirty pages in the same extent<br>|
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|**mysql.information_schema_stats_expiry**`long`<br>min: `900` max: `31536000`<br>The time, in seconds, before cached statistics expire.<br>|
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|**mysql.innodb_change_buffer_max_size**`long`<br>min: `0` max: `50`<br>Maximum size for the InnoDB change buffer, as a percentage of the total size of the buffer pool. Default is 25.<br>|
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|**mysql.innodb_flush_neighbors**`long`<br>min: `0` max: `2`<br>Specifies whether flushing a page from the InnoDB buffer pool also flushes other dirty pages in the same extent (default is 1): 0 - dirty pages in the same extent are not flushed, 1 - flush contiguous dirty pages in the same extent, 2 - flush dirty pages in the same extent.<br>|
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|**mysql.innodb_ft_min_token_size**`long`<br>min: `0` max: `16`<br>Minimum length of words that are stored in an InnoDB FULLTEXT index. Changing this parameter will lead to a restart of the MySQL service.<br>|
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|**mysql.innodb_ft_server_stopword_table**`string`<br>This option is used to specify your own InnoDB FULLTEXT index stopword list for all InnoDB tables.<br>|
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|**mysql.innodb_lock_wait_timeout**`long`<br>min: `1` max: `3600`<br>The length of time in seconds an InnoDB transaction waits for a row lock before giving up. Default is 120.<br>|
@@ -72,7 +72,7 @@ Below you can find a summary of every configuration option available for MySQL s
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|**mysql.innodb_print_all_deadlocks**`boolean`<br>When enabled, information about all deadlocks in InnoDB user transactions is recorded in the error log. Disabled by default.<br>|
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|**mysql.innodb_read_io_threads**`long`<br>min: `1` max: `64`<br>The number of I/O threads for read operations in InnoDB. Default is 4. Changing this parameter will lead to a restart of the MySQL service.<br>|
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|**mysql.innodb_rollback_on_timeout**`boolean`<br>When enabled a transaction timeout causes InnoDB to abort and roll back the entire transaction. Changing this parameter will lead to a restart of the MySQL service.<br>|
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|**mysql.innodb_thread_concurrency**`long`<br>min: `0` max: `1000`<br>Defines the maximum number of threads permitted inside of InnoDB. Default is 0 (infinite concurrency - no limit)<br>|
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|**mysql.innodb_thread_concurrency**`long`<br>min: `0` max: `1000`<br>Defines the maximum number of threads permitted inside of InnoDB. Default is 0 (infinite concurrency - no limit).<br>|
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|**mysql.innodb_write_io_threads**`long`<br>min: `1` max: `64`<br>The number of I/O threads for write operations in InnoDB. Default is 4. Changing this parameter will lead to a restart of the MySQL service.<br>|
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|**mysql.interactive_timeout**`long`<br>min: `30` max: `604800`<br>The number of seconds the server waits for activity on an interactive connection before closing it.<br>|
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|**mysql.internal_tmp_mem_storage_engine**`string`<br>values: `MEMORY`, `TempTable`<br>The storage engine for in-memory internal temporary tables.<br>|
@@ -85,15 +85,15 @@ Below you can find a summary of every configuration option available for MySQL s
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|**mysql.net_write_timeout**`long`<br>min: `1` max: `3600`<br>The number of seconds to wait for a block to be written to a connection before aborting the write.<br>|
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|**mysql.slow_query_log**`boolean`<br>Slow query log enables capturing of slow queries. Setting slow_query_log to false also truncates the mysql.slow_log table.<br>|
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|**mysql.sort_buffer_size**`long`<br>min: `32768` max: `1073741824`<br>Sort buffer size in bytes for ORDER BY optimization. Default is 262144 (256K)<br>|
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|**mysql.sql_mode**`string`<br>Global SQL mode. Set to empty to use MySQL server defaults. When creating a new service and not setting this field Aiven default SQL mode (strict, SQL standard compliant) will be assigned.<br>|
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|**mysql.sql_require_primary_key**`boolean`<br>Require primary key to be defined for new tables or old tables modified with ALTER TABLE and fail if missing. It is recommended to always have primary keys because various functionality may break if any large table is missing them.<br>|
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|**mysql.tmp_table_size**`long`<br>min: `1048576` max: `1073741824`<br>Limits the size of internal in-memory tables. Also set max_heap_table_size. Default is 16777216 (16M)<br>|
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|**mysql.wait_timeout**`long`<br>min: `1` max: `2147483`<br>The number of seconds the server waits for activity on a noninteractive connection before closing it.<br>|
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|**mysql.sql_mode**`string`<br>Global SQL mode. Set to empty to use MySQL server defaults. When creating a new service and not setting this field, Aiven default SQL mode (strict, SQL standard compliant) will be assigned.<br>|
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|**mysql.sql_require_primary_key**`boolean`<br>Require primary key to be defined for new tables or old tables modified with ALTER TABLE and fail if missing. It is recommended to always have primary keys because various functionalities may break if any large table is missing them.<br>|
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|**mysql.tmp_table_size**`long`<br>min: `1048576` max: `1073741824`<br>Limits the size of internal in-memory tables. Also sets max_heap_table_size. Default is 16777216 (16M).<br>|
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|**mysql.wait_timeout**`long`<br>min: `1` max: `2147483`<br>The number of seconds the server waits for activity on a non-interactive connection before closing it.<br>|
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## Go further
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Visit our dedicated Discord channel: <https://discord.gg/ovhcloud>. Ask questions, provide feedback and interact directly with the team that builds our databases services.
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If you need training or technical assistance to implement our solutions, contact your sales representative or click on [this link](https://www.ovhcloud.com/de/professional-services/) to get a quote and ask our Professional Services experts for a custom analysis of your project.
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+
If you need training or technical assistance to implement our solutions, contact your sales representative or click on [this link](/links/professional-services) to get a quote and ask our Professional Services experts for a custom analysis of your project.
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Join our community of users on <https://community.ovh.com/en/>.
Copy file name to clipboardExpand all lines: pages/public_cloud/public_cloud_databases/mysql_08_advanced_parameters_references/guide.en-asia.md
+16-16Lines changed: 16 additions & 16 deletions
Display the source diff
Display the rich diff
Original file line number
Diff line number
Diff line change
@@ -1,7 +1,7 @@
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---
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title: MySQL - Advanced parameters references
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excerpt: This guide lists all the supported advanced parameters that allow you to configure your Public Cloud Databases for MySQL according to your use cases
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-
updated: 2026-06-18
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+
updated: 2025-06-18
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---
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<style>
@@ -33,9 +33,9 @@ This guide lists all the supported advanced parameters that allow you to configu
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## Requirements
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-
- A [Public Cloud project](https://www.ovhcloud.com/asia/public-cloud/) in your OVHcloud account
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-
- A database running on your OVHcloud Public Cloud Databases ([this guide](/pages/public_cloud/public_cloud_databases/databases_01_order_control_panel) can help you to meet this requirement)
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-
- Access to your [OVHcloud Control Panel](https://ca.ovh.com/auth/?action=gotomanager&from=https://www.ovh.com/asia/&ovhSubsidiary=asia) or to the [OVHcloud API](https://api.ovh.com/console/)
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+
- A [Public Cloud project](/links/public-cloud/public-cloud) in your OVHcloud account.
37
+
- A database running on your OVHcloud Public Cloud Databases ([this guide](/pages/public_cloud/public_cloud_databases/databases_01_order_control_panel) can help you to meet this requirement).
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+
- Access to your [OVHcloud Control Panel](/links/manager) or to the [OVHcloud API](/links/api).
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## Instructions
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@@ -54,16 +54,16 @@ Please refer to this [guide](/pages/public_cloud/public_cloud_databases/database
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### Advanced parameters for MySQL
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-
Below you can find a summary of every configuration option available for MySQL service:
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+
Below you can find a summary of every configuration option available for a MySQL service:
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| Parameters |
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|------------|
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-
|**mysql.connect_timeout**`long`<br>min: `2` max: `3600`<br>The number of seconds that the mysqld server waits for a connect packet before responding with Bad handshake<br>|
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+
|**mysql.connect_timeout**`long`<br>min: `2` max: `3600`<br>The number of seconds that the mysqld server waits for a connect packet before responding with Bad handshake.<br>|
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|**mysql.default_time_zone**`string`<br>Default server time zone as an offset from UTC (from -12:00 to +12:00), a time zone name, or 'SYSTEM' to use the MySQL server default.<br>|
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|**mysql.group_concat_max_len**`long`<br>min: `4` max: `18446744073709552000`<br>The maximum permitted result length in bytes for the GROUP_CONCAT() function.<br>|
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|**mysql.information_schema_stats_expiry**`long`<br>min: `900` max: `31536000`<br>The time, in seconds, before cached statistics expire<br>|
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-
|**mysql.innodb_change_buffer_max_size**`long`<br>min: `0` max: `50`<br>Maximum size for the InnoDB change buffer, as a percentage of the total size of the buffer pool. Default is 25<br>|
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|**mysql.innodb_flush_neighbors**`long`<br>min: `0` max: `2`<br>Specifies whether flushing a page from the InnoDB buffer pool also flushes other dirty pages in the same extent (default is 1): 0 - dirty pages in the same extent are not flushed, 1 - flush contiguous dirty pages in the same extent, 2 - flush dirty pages in the same extent<br>|
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|**mysql.information_schema_stats_expiry**`long`<br>min: `900` max: `31536000`<br>The time, in seconds, before cached statistics expire.<br>|
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|**mysql.innodb_change_buffer_max_size**`long`<br>min: `0` max: `50`<br>Maximum size for the InnoDB change buffer, as a percentage of the total size of the buffer pool. Default is 25.<br>|
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|**mysql.innodb_flush_neighbors**`long`<br>min: `0` max: `2`<br>Specifies whether flushing a page from the InnoDB buffer pool also flushes other dirty pages in the same extent (default is 1): 0 - dirty pages in the same extent are not flushed, 1 - flush contiguous dirty pages in the same extent, 2 - flush dirty pages in the same extent.<br>|
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|**mysql.innodb_ft_min_token_size**`long`<br>min: `0` max: `16`<br>Minimum length of words that are stored in an InnoDB FULLTEXT index. Changing this parameter will lead to a restart of the MySQL service.<br>|
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|**mysql.innodb_ft_server_stopword_table**`string`<br>This option is used to specify your own InnoDB FULLTEXT index stopword list for all InnoDB tables.<br>|
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|**mysql.innodb_lock_wait_timeout**`long`<br>min: `1` max: `3600`<br>The length of time in seconds an InnoDB transaction waits for a row lock before giving up. Default is 120.<br>|
@@ -72,7 +72,7 @@ Below you can find a summary of every configuration option available for MySQL s
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|**mysql.innodb_print_all_deadlocks**`boolean`<br>When enabled, information about all deadlocks in InnoDB user transactions is recorded in the error log. Disabled by default.<br>|
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|**mysql.innodb_read_io_threads**`long`<br>min: `1` max: `64`<br>The number of I/O threads for read operations in InnoDB. Default is 4. Changing this parameter will lead to a restart of the MySQL service.<br>|
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|**mysql.innodb_rollback_on_timeout**`boolean`<br>When enabled a transaction timeout causes InnoDB to abort and roll back the entire transaction. Changing this parameter will lead to a restart of the MySQL service.<br>|
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|**mysql.innodb_thread_concurrency**`long`<br>min: `0` max: `1000`<br>Defines the maximum number of threads permitted inside of InnoDB. Default is 0 (infinite concurrency - no limit)<br>|
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|**mysql.innodb_thread_concurrency**`long`<br>min: `0` max: `1000`<br>Defines the maximum number of threads permitted inside of InnoDB. Default is 0 (infinite concurrency - no limit).<br>|
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|**mysql.innodb_write_io_threads**`long`<br>min: `1` max: `64`<br>The number of I/O threads for write operations in InnoDB. Default is 4. Changing this parameter will lead to a restart of the MySQL service.<br>|
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|**mysql.interactive_timeout**`long`<br>min: `30` max: `604800`<br>The number of seconds the server waits for activity on an interactive connection before closing it.<br>|
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|**mysql.internal_tmp_mem_storage_engine**`string`<br>values: `MEMORY`, `TempTable`<br>The storage engine for in-memory internal temporary tables.<br>|
@@ -85,15 +85,15 @@ Below you can find a summary of every configuration option available for MySQL s
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|**mysql.net_write_timeout**`long`<br>min: `1` max: `3600`<br>The number of seconds to wait for a block to be written to a connection before aborting the write.<br>|
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|**mysql.slow_query_log**`boolean`<br>Slow query log enables capturing of slow queries. Setting slow_query_log to false also truncates the mysql.slow_log table.<br>|
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|**mysql.sort_buffer_size**`long`<br>min: `32768` max: `1073741824`<br>Sort buffer size in bytes for ORDER BY optimization. Default is 262144 (256K)<br>|
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-
|**mysql.sql_mode**`string`<br>Global SQL mode. Set to empty to use MySQL server defaults. When creating a new service and not setting this field Aiven default SQL mode (strict, SQL standard compliant) will be assigned.<br>|
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-
|**mysql.sql_require_primary_key**`boolean`<br>Require primary key to be defined for new tables or old tables modified with ALTER TABLE and fail if missing. It is recommended to always have primary keys because various functionality may break if any large table is missing them.<br>|
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-
|**mysql.tmp_table_size**`long`<br>min: `1048576` max: `1073741824`<br>Limits the size of internal in-memory tables. Also set max_heap_table_size. Default is 16777216 (16M)<br>|
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|**mysql.wait_timeout**`long`<br>min: `1` max: `2147483`<br>The number of seconds the server waits for activity on a noninteractive connection before closing it.<br>|
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|**mysql.sql_mode**`string`<br>Global SQL mode. Set to empty to use MySQL server defaults. When creating a new service and not setting this field, Aiven default SQL mode (strict, SQL standard compliant) will be assigned.<br>|
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+
|**mysql.sql_require_primary_key**`boolean`<br>Require primary key to be defined for new tables or old tables modified with ALTER TABLE and fail if missing. It is recommended to always have primary keys because various functionalities may break if any large table is missing them.<br>|
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+
|**mysql.tmp_table_size**`long`<br>min: `1048576` max: `1073741824`<br>Limits the size of internal in-memory tables. Also sets max_heap_table_size. Default is 16777216 (16M).<br>|
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|**mysql.wait_timeout**`long`<br>min: `1` max: `2147483`<br>The number of seconds the server waits for activity on a non-interactive connection before closing it.<br>|
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## Go further
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Visit our dedicated Discord channel: <https://discord.gg/ovhcloud>. Ask questions, provide feedback and interact directly with the team that builds our databases services.
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-
If you need training or technical assistance to implement our solutions, contact your sales representative or click on [this link](https://www.ovhcloud.com/asia/professional-services/) to get a quote and ask our Professional Services experts for a custom analysis of your project.
97
+
If you need training or technical assistance to implement our solutions, contact your sales representative or click on [this link](/links/professional-services) to get a quote and ask our Professional Services experts for a custom analysis of your project.
98
98
99
-
Join our community of users on <https://community.ovh.com/en/>.
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