50 lines
1.1 KiB
Markdown
50 lines
1.1 KiB
Markdown
# Setting Override
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In default, SkyWalking provide `agent.config` for agent.
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Setting override means end user can override the settings in these config file, through using system properties or agent options.
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## System properties
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Use `skywalking.` + key in config file as system properties key, to override the value.
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- Why need this prefix?
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The agent system properties and env share with target application, this prefix can avoid variable conflict.
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- Example
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Override `agent.application_code` by this.
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```
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-Dskywalking.agent.application_code=31200
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```
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## Agent options
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Add the properties after the agent path in JVM arguments.
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```
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-javaagent:/path/to/skywalking-agent.jar=[option1]=[value1],[option2]=[value2]
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```
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- Example
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Override `agent.application_code` and `logging.level` by this.
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```
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-javaagent:/path/to/skywalking-agent.jar=agent.application_code=31200,logging.level=debug
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```
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- Special characters
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If a separator(`,` or `=`) in the option or value, it should be wrapped in quotes.
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```
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-javaagent:/path/to/skywalking-agent.jar=agent.ignore_suffix='.jpg,.jpeg'
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```
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## Override priority
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Agent Options > System.Properties(-D) > Config file
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