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update doc
This commit is contained in:
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title><no title> — Arthas 3.5.6 文档</title>
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<title><no title> — Arthas 3.6.0 文档</title>
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<div class="version">
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3.5.6
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3.6.0
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</div>
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+63
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@@ -16,42 +16,51 @@ options
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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`~/logs/arthas-cache/result.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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| print-parent-fields | true | 是否打印在parent class里的filed |
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| verbose | false | 是否打印更多详细信息 |
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| strict | true | 是否启用strict模式 |
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### 查看所有的options
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```bash
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$ options
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LEVEL TYPE NAME VALUE SUMMARY DESCRIPTION
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--------------------------------------------------------------------------------------------
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0 bool unsafe false Option to support This option enables to proxy function
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ean system-level class ality of JVM classes. Due to serious
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security risk a JVM crash is possibly
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be introduced. Do not activate it un
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less you are able to manage.
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1 bool dump false Option to dump the This option enables the enhanced clas
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ean enhanced classes ses to be dumped to external file for
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further de-compilation and analysis.
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1 bool batch-re-tr true Option to support This options enables to reTransform c
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ean ansform batch reTransform lasses with batch mode.
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Class
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2 bool json-format false Option to support This option enables to format object
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ean JSON format of obj output with JSON when -x option selec
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ect output ted.
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1 bool disable-sub false Option to control This option disable to include sub cl
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ean -class include sub class ass when matching class.
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when class matchin
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g
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1 bool save-result false Option to print co This option enables to save each comm
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ean mmand's result to and's result to log file, which path
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log file is ${user.home}/logs/arthas-cache/res
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ult.log.
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2 Stri job-timeout 1d Option to job time This option setting job timeout,The u
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ng out nit can be d, h, m, s for day, hour,
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minute, second. 1d is one day in defa
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ult
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1 bool print-paren true Option to print al This option enables print files in pa
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ean t-fields l fileds in parent rent class, default value true.
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class
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LEVEL TYPE NAME VALUE SUMMARY DESCRIPTION
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-------------------------------------------------------------------------------------------------------
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0 boolea unsafe false Option to support sy This option enables to proxy functionality
|
||||
n stem-level class of JVM classes. Due to serious security r
|
||||
isk a JVM crash is possibly be introduced.
|
||||
Do not activate it unless you are able to
|
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manage.
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1 boolea dump false Option to dump the e This option enables the enhanced classes t
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n nhanced classes o be dumped to external file for further d
|
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e-compilation and analysis.
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1 boolea batch-re-tra true Option to support ba This options enables to reTransform classe
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n nsform tch reTransform Clas s with batch mode.
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s
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2 boolea json-format false Option to support JS This option enables to format object outpu
|
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n ON format of object t with JSON when -x option selected.
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output
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1 boolea disable-sub- false Option to control in This option disable to include sub class w
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n class clude sub class when hen matching class.
|
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class matching
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1 boolea support-defa true Option to control in This option disable to include default met
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||||
n ult-method clude default method hod in interface when matching class.
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||||
in interface when c
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lass matching
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1 boolea save-result false Option to print comm This option enables to save each command's
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n and's result to log result to log file, which path is ${user.
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file home}/logs/arthas-cache/result.log.
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2 String job-timeout 1d Option to job timeou This option setting job timeout,The unit c
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t an be d, h, m, s for day, hour, minute, se
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cond. 1d is one day in default
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1 boolea print-parent true Option to print all This option enables print files in parent
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n -fields fileds in parent cla class, default value true.
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ss
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1 boolea verbose false Option to print verb This option enables print verbose informat
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n ose information ion, default value false.
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1 boolea strict true Option to strict mod By default, strict mode is true, not allow
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n e ed to set object properties. Want to set o
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bject properties, execute `options strict
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false`
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```
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@@ -96,3 +105,26 @@ $ watch java.lang.invoke.Invokers callSiteForm
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Press Q or Ctrl+C to abort.
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Affect(class count: 1 , method count: 1) cost in 61 ms, listenerId: 1
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```
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### 关闭strict模式,允许在ognl表达式里设置对象属性
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> since 3.6.0
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对于新用户,在编写ognl表达式时,可能会出现误用。
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比如对于`Student`,判断年龄等于18时,可能条件表达式会误写为`target.age=18`,这个表达式实际上是把当前对象的`age`设置为18了。正确的写法是`target.age==18`。
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为了防止出现类似上面的误用,Arthas默认启用`strict`模式,在`ognl`表达式里,禁止更新对象的Property或者调用`setter`函数。
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以`MathGame`为例,会出现以下的错误提示。
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```
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$ watch demo.MathGame primeFactors 'target' 'target.illegalArgumentCount=1'
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Press Q or Ctrl+C to abort.
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Affect(class count: 1 , method count: 1) cost in 206 ms, listenerId: 1
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watch failed, condition is: target.illegalArgumentCount=1, express is: target, By default, strict mode is true, not allowed to set object properties. Want to set object properties, execute `options strict false`, visit /Users/admin/logs/arthas/arthas.log for more details.
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```
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用户如果确定要在`ognl`表达式里更新对象,可以执行`options strict false`,关闭`strict`模式。
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* 更多信息参考: https://github.com/alibaba/arthas/issues/2128
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@@ -1,6 +1,6 @@
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var DOCUMENTATION_OPTIONS = {
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URL_ROOT: document.getElementById("documentation_options").getAttribute('data-url_root'),
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VERSION: '3.5.6',
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VERSION: '3.6.0',
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LANGUAGE: 'zh_CN',
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COLLAPSE_INDEX: false,
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FILE_SUFFIX: '.html',
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>进阶使用 — Arthas 3.5.6 文档</title>
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<title>进阶使用 — Arthas 3.6.0 文档</title>
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<div class="version">
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3.5.6
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3.6.0
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</div>
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>表达式核心变量 — Arthas 3.5.6 文档</title>
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<title>表达式核心变量 — Arthas 3.6.0 文档</title>
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<div class="version">
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3.5.6
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</div>
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>以Java Agent的方式启动 — Arthas 3.5.6 文档</title>
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<title>以Java Agent的方式启动 — Arthas 3.6.0 文档</title>
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<div class="version">
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3.5.6
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</div>
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Arthas Properties — Arthas 3.5.6 文档</title>
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<title>Arthas Properties — Arthas 3.6.0 文档</title>
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<div class="version">
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3.5.6
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</div>
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Arthas3.0的新特性 — Arthas 3.5.6 文档</title>
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<title>Arthas3.0的新特性 — Arthas 3.6.0 文档</title>
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<div class="version">
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3.5.6
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</div>
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Arthas 3.0新特性介绍 — Arthas 3.5.6 文档</title>
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<title>Arthas 3.0新特性介绍 — Arthas 3.6.0 文档</title>
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<title>Arthas后台异步任务 — Arthas 3.5.6 文档</title>
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<title>Arthas后台异步任务 — Arthas 3.6.0 文档</title>
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>auth — Arthas 3.5.6 文档</title>
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<title>auth — Arthas 3.6.0 文档</title>
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<title>base64 — Arthas 3.5.6 文档</title>
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<title>base64 — Arthas 3.6.0 文档</title>
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<title>批处理功能 — Arthas 3.5.6 文档</title>
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<title>批处理功能 — Arthas 3.6.0 文档</title>
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<title>cat — Arthas 3.5.6 文档</title>
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<title>cat — Arthas 3.6.0 文档</title>
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<title>classloader — Arthas 3.5.6 文档</title>
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<title>classloader — Arthas 3.6.0 文档</title>
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<title>cls — Arthas 3.5.6 文档</title>
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<title>cls — Arthas 3.6.0 文档</title>
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<title>命令列表 — Arthas 3.5.6 文档</title>
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<title>命令列表 — Arthas 3.6.0 文档</title>
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<title>联系我们 — Arthas 3.5.6 文档</title>
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<title>联系我们 — Arthas 3.6.0 文档</title>
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<title>dashboard — Arthas 3.5.6 文档</title>
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<title>dashboard — Arthas 3.6.0 文档</title>
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<title>Docker — Arthas 3.5.6 文档</title>
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<title>Docker — Arthas 3.6.0 文档</title>
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<title>下载 — Arthas 3.5.6 文档</title>
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<title>下载 — Arthas 3.6.0 文档</title>
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<title>dump — Arthas 3.5.6 文档</title>
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<title>dump — Arthas 3.6.0 文档</title>
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<title>echo — Arthas 3.5.6 文档</title>
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<title>echo — Arthas 3.6.0 文档</title>
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|
||||
3.5.6
|
||||
3.6.0
|
||||
</div>
|
||||
|
||||
|
||||
|
||||
+1
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@@ -1,4 +1,4 @@
|
||||
# Sphinx build info version 1
|
||||
# This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
|
||||
config: 20cef68d6d8ef26763caeb64247d3070
|
||||
config: 28bddd0f1f169a517644caa143d60952
|
||||
tags: 645f666f9bcd5a90fca523b33c5a78b7
|
||||
|
||||
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@@ -8,7 +8,7 @@
|
||||
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
|
||||
<title><no title> — Arthas 3.5.6 documentation</title>
|
||||
<title><no title> — Arthas 3.6.0 documentation</title>
|
||||
|
||||
|
||||
|
||||
@@ -71,7 +71,7 @@
|
||||
|
||||
|
||||
<div class="version">
|
||||
3.5.6
|
||||
3.6.0
|
||||
</div>
|
||||
|
||||
|
||||
|
||||
+65
-37
@@ -15,47 +15,51 @@ options
|
||||
| support-default-method | true | whether to enable matching default method in interface. The default value is `true`. Refer to [#1105](https://github.com/alibaba/arthas/issues/1105) |
|
||||
| save-result | false | whether to save execution result. All execution results will be saved to `~/logs/arthas-cache/result.log` when it's turned on|
|
||||
| job-timeout | 1d | default timeout for background jobs. Background job will be terminated once it's timed out (i.e. 1d, 2h, 3m, 25s)| print-parent-fields | true | This option enables print files in parent class, default value true.|
|
||||
|
||||
| verbose | false | This option enables print verbose information|
|
||||
| strict | true | whether to enable strict mode |
|
||||
|
||||
|
||||
### View all options
|
||||
|
||||
```bash
|
||||
$ options
|
||||
LEVEL TYPE NAME VALUE SUMMARY DESCRIPTION
|
||||
--------------------------------------------------------------------------------------------
|
||||
0 bool unsafe false Option to support This option enables to proxy function
|
||||
ean system-level class ality of JVM classes. Due to serious
|
||||
security risk a JVM crash is possibly
|
||||
be introduced. Do not activate it un
|
||||
less you are able to manage.
|
||||
1 bool dump false Option to dump the This option enables the enhanced clas
|
||||
ean enhanced classes ses to be dumped to external file for
|
||||
further de-compilation and analysis.
|
||||
1 bool batch-re-tr true Option to support This options enables to reTransform c
|
||||
ean ansform batch reTransform lasses with batch mode.
|
||||
Class
|
||||
2 bool json-format false Option to support This option enables to format object
|
||||
ean JSON format of obj output with JSON when -x option selec
|
||||
ect output ted.
|
||||
1 bool disable-sub false Option to control This option disable to include sub cl
|
||||
ean -class include sub class ass when matching class.
|
||||
when class matchin
|
||||
g
|
||||
1 bool debug-for-a false Option to print DE This option enables to print DEBUG me
|
||||
ean sm BUG message if ASM ssage of ASM for each method invocati
|
||||
is involved on.
|
||||
1 bool save-result false Option to print co This option enables to save each comm
|
||||
ean mmand's result to and's result to log file, which path
|
||||
log file is ${user.home}/logs/arthas-cache/res
|
||||
ult.log.
|
||||
2 Stri job-timeout 1d Option to job time This option setting job timeout,The u
|
||||
ng out nit can be d, h, m, s for day, hour,
|
||||
minute, second. 1d is one day in defa
|
||||
ult
|
||||
1 bool print-paren true Option to print al This option enables print files in pa
|
||||
ean t-fields l fileds in parent rent class, default value true.
|
||||
class
|
||||
LEVEL TYPE NAME VALUE SUMMARY DESCRIPTION
|
||||
-------------------------------------------------------------------------------------------------------
|
||||
0 boolea unsafe false Option to support sy This option enables to proxy functionality
|
||||
n stem-level class of JVM classes. Due to serious security r
|
||||
isk a JVM crash is possibly be introduced.
|
||||
Do not activate it unless you are able to
|
||||
manage.
|
||||
1 boolea dump false Option to dump the e This option enables the enhanced classes t
|
||||
n nhanced classes o be dumped to external file for further d
|
||||
e-compilation and analysis.
|
||||
1 boolea batch-re-tra true Option to support ba This options enables to reTransform classe
|
||||
n nsform tch reTransform Clas s with batch mode.
|
||||
s
|
||||
2 boolea json-format false Option to support JS This option enables to format object outpu
|
||||
n ON format of object t with JSON when -x option selected.
|
||||
output
|
||||
1 boolea disable-sub- false Option to control in This option disable to include sub class w
|
||||
n class clude sub class when hen matching class.
|
||||
class matching
|
||||
1 boolea support-defa true Option to control in This option disable to include default met
|
||||
n ult-method clude default method hod in interface when matching class.
|
||||
in interface when c
|
||||
lass matching
|
||||
1 boolea save-result false Option to print comm This option enables to save each command's
|
||||
n and's result to log result to log file, which path is ${user.
|
||||
file home}/logs/arthas-cache/result.log.
|
||||
2 String job-timeout 1d Option to job timeou This option setting job timeout,The unit c
|
||||
t an be d, h, m, s for day, hour, minute, se
|
||||
cond. 1d is one day in default
|
||||
1 boolea print-parent true Option to print all This option enables print files in parent
|
||||
n -fields fileds in parent cla class, default value true.
|
||||
ss
|
||||
1 boolea verbose false Option to print verb This option enables print verbose informat
|
||||
n ose information ion, default value false.
|
||||
1 boolea strict true Option to strict mod By default, strict mode is true, not allow
|
||||
n e ed to set object properties. Want to set o
|
||||
bject properties, execute `options strict
|
||||
false`
|
||||
```
|
||||
|
||||
|
||||
@@ -99,4 +103,28 @@ $ options unsafe true
|
||||
$ watch java.lang.invoke.Invokers callSiteForm
|
||||
Press Q or Ctrl+C to abort.
|
||||
Affect(class count: 1 , method count: 1) cost in 61 ms, listenerId: 1
|
||||
```
|
||||
```
|
||||
|
||||
|
||||
### Turn off strict mode, allow setting object properties in ognl expressions
|
||||
|
||||
> since 3.6.0
|
||||
|
||||
For new users, there may be misuses when writing ognl expressions.
|
||||
|
||||
For example, for `Student`, when judging the age is equal to 18, the conditional expression may be mistakenly written as `target.age=18`, which actually sets the `age` of the current object to 18. The correct spelling is `target.age==18`.
|
||||
|
||||
In order to prevent misuse like the above, Arthas enables `strict` mode by default, in `ognl` expressions, it is forbidden to update the property of the object or call the `setter` method.
|
||||
|
||||
Take `MathGame` as an example, the following error message will appear.
|
||||
|
||||
```
|
||||
$ watch demo.MathGame primeFactors 'target' 'target.illegalArgumentCount=1'
|
||||
Press Q or Ctrl+C to abort.
|
||||
Affect(class count: 1 , method count: 1) cost in 206 ms, listenerId: 1
|
||||
watch failed, condition is: target.illegalArgumentCount=1, express is: target, By default, strict mode is true, not allowed to set object properties. Want to set object properties, execute `options strict false`, visit /Users/admin/logs/arthas/arthas.log for more details.
|
||||
```
|
||||
|
||||
If the user want to change the object properties in the `ognl` expression, you can execute `options strict false` to turn off the `strict` mode.
|
||||
|
||||
* For more information, please refer to: https://github.com/alibaba/arthas/issues/2128
|
||||
@@ -1,6 +1,6 @@
|
||||
var DOCUMENTATION_OPTIONS = {
|
||||
URL_ROOT: document.getElementById("documentation_options").getAttribute('data-url_root'),
|
||||
VERSION: '3.5.6',
|
||||
VERSION: '3.6.0',
|
||||
LANGUAGE: 'en',
|
||||
COLLAPSE_INDEX: false,
|
||||
FILE_SUFFIX: '.html',
|
||||
|
||||
@@ -8,7 +8,7 @@
|
||||
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
|
||||
<title>Advanced Usage — Arthas 3.5.6 documentation</title>
|
||||
<title>Advanced Usage — Arthas 3.6.0 documentation</title>
|
||||
|
||||
|
||||
|
||||
@@ -73,7 +73,7 @@
|
||||
|
||||
|
||||
<div class="version">
|
||||
3.5.6
|
||||
3.6.0
|
||||
</div>
|
||||
|
||||
|
||||
|
||||
@@ -8,7 +8,7 @@
|
||||
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||||
|
||||
<title>Fundamental Fields in Expressions — Arthas 3.5.6 documentation</title>
|
||||
<title>Fundamental Fields in Expressions — Arthas 3.6.0 documentation</title>
|
||||
|
||||
|
||||
|
||||
@@ -73,7 +73,7 @@
|
||||
|
||||
|
||||
<div class="version">
|
||||
3.5.6
|
||||
3.6.0
|
||||
</div>
|
||||
|
||||
|
||||
|
||||
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user