System Properties
Some parts of CData Virtuality Server behaviour can be configured via system properties. System properties may be set in the dvserver/bin/standalone.conf.props(.bat) file and have the format -Dproperty=value.
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System Property | Description | Default Value |
|---|---|---|
| For usage with the CData Virtuality REST API pagination. Specifies the maximum number of buffered connections (one connection corresponds to one cursor or |
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| For usage with the CData Virtuality REST API pagination. Specifies the duration a The actual lifetime may differ depending on buffer usage for pagination queries. Value is specified in minutes |
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| Enables caching of the metadata to the configuration database on adding or refreshing the data source |
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| Defines the path to the key file. The key is used to encrypt/decrypt credentials and other parameters that must be encrypted. Encryption keys must now be encrypted using AES, DES, or old DES (for example, via the AES_ENCRYPT function). Please contact support for more details | |
| If set to |
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| Used by the following:
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| If set to |
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| If set to |
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| Used to generate valid links in the OData and REST responses in case the server is configured behind a proxy server, or a load balancer is used. The value of this property is used if not overridden by the | empty value |
| If set to |
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| If set to |
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| Controls whether the optimizer will by default unnest subqueries |
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| Specifies the timeout for JBoss CLI in milliseconds |
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| Specifies the default CLI timeout for JBoss CLI in milliseconds |
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| Specifies the default |
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| Used for internal cache size calculation |
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| REST API timeout in milliseconds |
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| Specifies a Unique Connection String Identifier for Snowflake data sources |
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Examples
1. Example for setting system property via standalone.conf.props.bat (Windows):
SET "JAVA_OPTS=%JAVA_OPTS% -D<system property>=<system property value>"
2. Example for setting system property via standalone.conf.props (Linux):
JAVA_OPTS="$JAVA_OPTS -D<system property>=<system property value>"
3. Example for setting the dv.maintenance system property via standalone.conf.props.bat (Windows):
SET "JAVA_OPTS=%JAVA_OPTS% -Ddv.maintenance=true"
4. Example for setting the dv.maintenance system property via standalone.conf.props (Linux):
JAVA_OPTS="$JAVA_OPTS -Ddv.maintenance=true"
5. Example for encrypting the encryption key
SELECT aes_encrypt('data', 'key');;