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options
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===
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> 全局开关
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| 名称 | 默认值 | 描述 |
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| ------------------ | ----- | ---------------------------------------- |
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| unsafe | false | 是否支持对系统级别的类进行增强,打开该开关可能导致把JVM搞挂,请慎重选择! |
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| dump | false | 是否支持被增强了的类dump到外部文件中,如果打开开关,class文件会被dump到`/${application dir}/arthas-class-dump/`目录下,具体位置详见控制台输出 |
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| batch-re-transform | true | 是否支持批量对匹配到的类执行retransform操作 |
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| json-format | false | 是否支持json化的输出 |
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| disable-sub-class | false | 是否禁用子类匹配,默认在匹配目标类的时候会默认匹配到其子类,如果想精确匹配,可以关闭此开关 |
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| debug-for-asm | false | 打印ASM相关的调试信息 |
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| save-result | false | 是否打开执行结果存日志功能,打开之后所有命令的运行结果都将保存到`/home/admin/logs/arthas/arthas.log`中 |
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| job-timeout | 1d | 异步后台任务的默认超时时间,超过这个时间,任务自动停止;比如设置 1d, 2h, 3m, 25s,分别代表天、小时、分、秒 |
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### 使用说明
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例如,想打开执行结果存日志功能,输入如下命令即可:
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```
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$ options save-result true
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NAME BEFORE-VALUE AFTER-VALUE
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----------------------------------------
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save-result false true
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```
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