• Btrace是一个实时监控工具


    http://blog.csdn.net/gzh0222/article/details/9731031

    Btrace是一个实时监控工具,可以无需修改应用代码(事实上它修改了字节码),来达到不可告人的秘密!这是性能调优和诊断的利器!

    它可以获取应用程序代码的执行时间,他可以让你无需修改代码,帮你做时间的打点。它还可以做的有很多多!

    但是,你需要编写btrace脚本,它是一个java文件。在Eclipse中编写java类很简单,在linux上,vm不熟悉的可能就会比较痛苦了,并且脚本可复制性很强。

    因此,我对btrace做了一个封装和拓展,你无须再编写java脚本,只需要敲几个命令,便可以实现你想要的功能!

    为了减少重复工作的增加,拓展工具提供了以下特色功能:

    1) 命令行交互式方式

    2) 封装了常见的方法监控命令,无需再编写btrace脚本

    3) 集成了一些典型的监控对象,如druid连接池,sql监控,isearch等

    4) 未改变原有的btrace功能,仍然支持btrace脚本方式

    软件获取和运行

    github:https://github.com/xxzmxx/btrace_extend/

    svn co 到linux/windows某个位置,进入bin目录

    Linux: chmod +x btrace (赋予btrace 可执行权限)

    windows无需操作。

    命令行下,执行命令

    ./btrace [pid]

    【pid可以通过jps获取】

    进入交互界面

    提供命令行交互

    原有的btrace是通过形如 btrace pid xx.java文件。通过本次改造,我们提供了命令行交互方式,增加用户体验:

    输入help,获取可用的命令

    btrace>help
    -------------------------------------------------------------------------------------------------------------------------------
    | CommandName  CommandArgs                       CommandUsage
    | time         {clazzname methodname}[interval]  collect response time ,and it can be executed by a interval set(s),;Example
    |                                                time java.lang.Thread start 2
    |
    | aggre        {clazzname methodname}[interval]  aggregation response time,it's a well fuction;Example
    |                                                aggre java.lang.Thread start 2
    |
    | call         {clazzname methodname}[interval]  when method called,it prints;Example
    |                                                call java.lang.Thread start 2
    |
    | jstack       {clazzname methodname}            when method called,it prints stackTrace;Example:
    |                                                jstack java.lang.Thread start 2
    |
    | file         {filePath}                        based on old btrace funtion,it can be run from a java file.Example:
    |                                                file Test.java
    |
    | druid                                          Monitor druid dataSource?Example
    |                                                druid
    |
    | isearch                                        Monitor Isearch execute time ;Example
    |                                                isearch
    |
    | sql                                            Monitor sql execute time ;Example
    |                                                sql
    |
    | sqlde                                          Monitor sql execute time and print Sql ;Example
    |                                                sqlde
    |
    | quit                                           exit btrace
    |                                                quit
    | -------------------------------------------------------------------------------------------------------------------------------

    btrace运行操作

    btrace在运行监控时,控制台是阻塞输入的。只有通过Ctrl+c,来向应用发送信号,btrace会有3个选项供选择:

    btrace>time java.lang.Thread start
    StartMonitor [java.lang.Thread.start()] time(ms)
    Please enter your option:
            1. exit
            2. send an event
            3. send a named event

    1代表退出监控,回到btrace交互模式;

    2代表发送一个事件,会触发btrace去打印监控信息到控制台。如aggre 、file、druid、isearch、sql、sqlde命令均可以通过该方式,打印出监控信息

    3发送一个指定名称的事件,暂时未支持

    命令演示

    本次拓展,共支持9个命令功能。

    1)time

    usage:time clazzname method [interval]

    time功能为获取指定类的方法的响应时间。并且它包含一个可选参数,即可以提供。

    例子:我们想监控类com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp 中方法storeProductToDraftOrNormal的耗时情况。则输入命令

    btrace>time com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp storeProductToDraftOrNormal
    StartMonitor [com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal()] time(ms)

    btrace就开始收集这个方法调用的时间,如果这个方法被调用,就会打印出时间信息。

    btrace>time com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp storeProductToDraftOrNormal
    StartMonitor [com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal()] time(ms)
    [Clazz.method]          Time(ms)
    com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal  19
    [Clazz.method]          Time(ms)
    com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal  7
    [Clazz.method]          Time(ms)
    com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal  7
    [Clazz.method]          Time(ms)
    com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal  7
    [Clazz.method]          Time(ms)
    com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal  7
    [Clazz.method]          Time(ms)
    com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal  7
    [Clazz.method]          Time(ms)
    com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal  8
    [Clazz.method]          Time(ms)
    com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal  7
    [Clazz.method]          Time(ms)
    com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal  7
    [Clazz.method]          Time(ms)
    com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal  8

    但是如果我的时间调用次数很多,就会出现残酷的刷屏现象,我希望每隔2s进行采样。输入如下命令:

    btrace>time com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp storeProductToDraftOrNormal 2
    StartMonitor [com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal()] time(ms)
    [Clazz.method]                                                                               AvgTime(ms)     Count(total)
    com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal 6              3
    [Clazz.method]                                                                               AvgTime(ms)     Count(total)
    com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal 7              13
    [Clazz.method]                                                                               AvgTime(ms)     Count(total)
    com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal 7              20
    [Clazz.method]                                                                               AvgTime(ms)     Count(total)
    com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal 7              20

    btrace会每隔2s收集一次信息,并对每次的信息做统计,包括均值和调用次数总计。

    2)aggre

    usage:time clazzname method [interval]

    如果我们觉得time命令还是不够满足我需求,我希望能够提供一些更详细的值,比如在采集的这段时间,rt的最大值,最小值,均值,以及分布,还有调用总数。此时可以通过聚合命令来完成

    例子:我们想监控类com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp 中方法storeProductToDraftOrNormal的耗时,并提供聚合报告。则输入命令

    btrace>aggre com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp storeProductToDraftOrNormal
    StartMonitor [com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal()] By Aggregation time(ms)

    通过触发Ctrl+c,选择选项2,获取输出结果:

    btrace>aggre com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp storeProductToDraftOrNormal
    StartMonitor [com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal()] By Aggregation time(ms)
    Please enter your option:
            1. exit
            2. send an event
            3. send a named event
    2
    QUANTIZE
      com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp
                      value  ------------- Distribution ------------- count
                          2 |                                         0
                          4 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@     45
                          8 |@@@                                      4
                         16 |                                         1
                         32 |                                         0
     
    AVERAGE
      com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp                7
    MAXIMUM
      com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp               19
    SUM
      com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp              361
    COUNT
      com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp               50

    这里提供了针对时间的聚合信息,以ms为单位。并提供了时间分布的功能,可以清晰的看出该模块时间是否稳定。

    3)call 

    这个命令和time命令用法基本相同,请参考time命令

    4)jstack

    usage:jstack clazzname method

    当应用中存在调用clazzname的method时,会打印出调用堆栈,这个方便我们查找问题。

    例如想监控com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp 中方法storeProductToDraftOrNormal是否被调用,如果调用,希望看到它的堆栈。

    btrace>jstack com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp storeProductToDraftOrNormal
    StartMonitor [com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal()]  && Print java stack info!
    -------------------------------stack info--------------------------
    com.alibaba.intl.ae.module.wsproduct.utils.WholesaleProductHelp.storeProductToDraftOrNormal(WholesaleProductHelp.java)
    com.alibaba.intl.ae.module.wsproduct.persistent.AeProductForMysqlPersistent.persistent(AeProductForMysqlPersistent.java:32)
    com.alibaba.intl.ae.morina.core.actionhandler.BasePublishActionHandler.invoke(BasePublishActionHandler.java:69)
    com.alibaba.intl.ae.morina.core.skeleton.publish.impl.ActionHandlerInterceptorChainInvocation.invoke(ActionHandlerInterceptorChainInvocation.java:67)
    com.alibaba.intl.ae.module.wsproduct.interceptor.AeProductDetailInterceptor.intercept(AeProductDetailInterceptor.java:40)
    com.alibaba.intl.ae.morina.core.skeleton.publish.impl.ActionHandlerInterceptorChainInvocation.invoke(ActionHandlerInterceptorChainInvocation.java:63)
    com.alibaba.intl.ae.module.wsproduct.interceptor.AeProductCatPropertyInterceptor.intercept(AeProductCatPropertyInterceptor.java:101)
    com.alibaba.intl.ae.morina.core.skeleton.publish.impl.ActionHandlerInterceptorChainInvocation.invoke(ActionHandlerInterceptorChainInvocation.java:63)
    com.alibaba.intl.ae.module.wsproduct.interceptor.AeProductPostCountCheckInterceptor.intercept(AeProductPostCountCheckInterceptor.java:51)
    com.alibaba.intl.ae.morina.core.skeleton.publish.impl.ActionHandlerInterceptorChainInvocation.invoke(ActionHandlerInterceptorChainInvocation.java:63)
    com.alibaba.intl.ae.module.wsproduct.interceptor.AeProductPersonAuthInterceptor.intercept(AeProductPersonAuthInterceptor.java:45)
    com.alibaba.intl.ae.morina.core.skeleton.publish.impl.ActionHandlerInterceptorChainInvocation.invoke(ActionHandlerInterceptorChainInvocation.java:63)
    com.alibaba.intl.ae.module.wsproduct.interceptor.AeProductPunishInterceptor.intercept(AeProductPunishInterceptor.java:32)
    com.alibaba.intl.ae.morina.core.skeleton.publish.impl.ActionHandlerInterceptorChainInvocation.invoke(ActionHandlerInterceptorChainInvocation.java:63)
    com.alibaba.intl.ae.module.wsproduct.interceptor.AutoValidateProductInterceptor.intercept(AutoValidateProductInterceptor.java:36)
    com.alibaba.intl.ae.morina.core.skeleton.publish.impl.ActionHandlerInterceptorChainInvocation.invoke(ActionHandlerInterceptorChainInvocation.java:63)
    com.alibaba.intl.ae.module.wsproduct.interceptor.MemberInfoInitializationInterceptor.intercept(MemberInfoInitializationInterceptor.java:73)
    com.alibaba.intl.ae.morina.core.skeleton.publish.impl.ActionHandlerInterceptorChainInvocation.invoke(ActionHandlerInterceptorChainInvocation.java:63)
    com.alibaba.intl.ae.morina.core.skeleton.publish.impl.AeProductPublishController.invoke(AeProductPublishController.java:50)
    com.alibaba.intl.ae.morina.core.skeleton.publish.impl.AeProductPublishController.invoke(AeProductPublishController.java:25)
    com.alibaba.intl.ae.morina.core.portal.InvocationControllerAutowirePostProcessor$1.intercept(InvocationControllerAutowirePostProcessor.java:44)
    com.alibaba.intl.ae.morina.core.portal.InvocationControllerPortal$$EnhancerByCGLIB$$276335c.invoke(<generated>)
    com.alibaba.intl.ae.module.wsproduct.service.AeProductPublishRemoteServiceImpl.postAeProduct(AeProductPublishRemoteServiceImpl.java:36)
    sun.reflect.GeneratedMethodAccessor380.invoke(Unknown Source)

    5)file

    这个命令其实是为了保留btrace原始的监控方式。所以如果你编写了btrace 脚本,那么直接使用:

    file script.java

    6)druid

    该命令没有参数,直接输入druid即可。druid是一个数据库连接池。在性能测试时,时常要监控连接池的饱满情况,以及是否存在性能瓶颈,那么监控连接池的活动情况是很直接的方法。

    例子如下:

    btrace>druid
    StartMonitor druid Connection DataSource
    Please enter your option:
            1. exit
            2. send an event
            3. send a named event
    2
    ------------------------------JDBC-URL-------------------------------    avalibleConn  activeConn  totalConn  Allconn  useage%
    dbc:mysql://10.20.147.144:3306/ws_product_press                          4                 0            4          20      20.0
    dbc:oracle:thin:@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=10.20.149.   8                 2           10          20      50.0
    dbc:mysql://10.20.147.144:3306/ws_sku_press                              6                 0            6          50      12.0
    dbc:alibaba:oracle:thin:@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=10    7                2            9          10      90.0

    7)sql

    该命令没有参数,直接输入sql即可。如果你的应用包含数据库操作,且使用ibatis框架,那么它会列出所有sql的操作时间,但是不显示详细sql,只显示ibatis-id。如果要显示详细sql,使用sqlde命令获取

    btrace>sql
    StartMonitor Ibtis Sql
    Please enter your option:
            1. exit
            2. send an event
            3. send a named event
    2
    ---------------------------------------------
    Count
                     FREIGHT_TEMPLATE.selectByPrimaryKey             1290
              WS_PRODUCT_DETAIL_DRAFT.selectByPrimaryKey             1290
              WS_PRODUCT_DETAIL_DRAFT.deleteByPrimaryKey             1290
    Min
                     FREIGHT_TEMPLATE.selectByPrimaryKey                0
              WS_PRODUCT_DETAIL_DRAFT.selectByPrimaryKey                0
              WS_PRODUCT_DETAIL_DRAFT.deleteByPrimaryKey                0
    Max
     
              WS_PRODUCT_DETAIL_DRAFT.selectByPrimaryKey               14
              WS_PRODUCT_DETAIL_DRAFT.deleteByPrimaryKey               14
                     FREIGHT_TEMPLATE.selectByPrimaryKey               15
    Average
                     FREIGHT_TEMPLATE.selectByPrimaryKey                0
              WS_PRODUCT_DETAIL_DRAFT.selectByPrimaryKey                0
              WS_PRODUCT_DETAIL_DRAFT.deleteByPrimaryKey                0
    Sum
     
                     FREIGHT_TEMPLATE.selectByPrimaryKey              144
              WS_PRODUCT_DETAIL_DRAFT.deleteByPrimaryKey              161
              WS_PRODUCT_DETAIL_DRAFT.selectByPrimaryKey              186
    Histogram
       WS_CATE_CONSULT_CFGT.selectOldCategoryAttriNumber
                      value  ------------- Distribution ------------- count
                         -1 |                                         0
                          0 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@            469
                          1 |@@@@@@@                                  127
                          2 |@                                        28
                          4 |                                         12
                          8 |                                         7
                         16 |                                         2
                         32 |                                         0
     
         WHOLESALE_STORE.findWholesaleStoreDOByCompanyId
                      value  ------------- Distribution ------------- count
                         -1 |                                         0
                          0 |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@     587
                          1 |@@                                       37
                          2 |                                         8
                          4 |                                         6
                          8 |                                         6
                         16 |                                         1
                         32 |                                         0
     
    Global Count
                19150

    ps.上述内容过于繁多,只选择了部分。

    8)sqlde

    该命令没有参数,直接输入sqlde即可。该命令不但会聚合所有sql的rt,也会打印sql详情。不过这个sql的排版目前做的还不是很好。会有些乱。建议还是使用sql命令来看。sql少的话,使用sqlde命令。 

     
     
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  • 原文地址:https://www.cnblogs.com/zengkefu/p/5632145.html
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