我做了什么:
- 我下载了适用于 Linux 的试用版 ( https://www.yourkit.com/download/ ) YourKit Java Profiler 并在我的 AWS 实例中进行了测试。
- 我正在尝试通过以下步骤通过远程连接向导启用分析，
/home/yourkit/yjp-2015-build-15078/bin/bin/yjp.sh -attach <PID> - 我收到以下错误，
我得到的 - 错误:
[YourKit Java Profiler 2015 build 15078] Cannot create log file: /home/ubuntu/.yjp/log/yjp-2041.log
To specify alternate log directory use startup option 'logdir'
15078 0.021: Command line:
/home/yourkit/yjp-2015-build-15078/bin/../jre64/bin/java
-Xmx4G
-XX:+HeapDumpOnOutOfMemoryError
-XX:OnError=/home/yourkit/yjp-2015-build-15078/bin/../bin/yjp.sh -on_error %p
-jar
/home/yourkit/yjp-2015-build-15078/bin/../lib/yjp.jar
-attach
1476
15078 0.021: Executable: /home/yourkit/yjp-2015-build-15078/jre64/bin/java
15078 0.021: uname:
sysname: Linux
release: 3.13.0-48-generic
version: #80-Ubuntu SMP Thu Mar 12 11:16:15 UTC 2015
machine: x86_64
15078 0.021: Linux; fast_thread_cpu_time=1; 64-bit process
15078 0.021: hid: 36022997176V9ZXX3UXV5UWZ513Z98931W 64-bit machine
15078 0.021: Today is 20151201
15078 0.021: full_build_stamp: 15078 201511161426
15078 0.021: Agent library path: /home/yourkit/yjp-2015-build-15078/bin/linux-x86-64/libyjpagent.so
15078 0.021:
---------------------------------------------------------------------
Product: YourKit Java Profiler 2015 build 15078
Build: 15078 on 201511161343
JDK: 1.8.0_65
VM: Java HotSpot(TM) 64-Bit Server VM
Vendor: Oracle Corporation
OS: Linux
OS version: 3.13.0-48-generic
OS arch: amd64
Date and time: Tue Dec 01 11:01:56 UTC 2015
Properties:
awt.toolkit=sun.awt.X11.XToolkit
file.encoding.pkg=sun.io
file.encoding=UTF-8
file.separator=/
java.awt.graphicsenv=sun.awt.X11GraphicsEnvironment
java.awt.printerjob=sun.print.PSPrinterJob
java.class.path=/home/yourkit/yjp-2015-build-15078/bin/../lib/yjp.jar
java.class.version=52.0
java.endorsed.dirs=/home/yourkit/yjp-2015-build-15078/jre64/lib/endorsed
java.ext.dirs=/home/yourkit/yjp-2015-build-15078/jre64/lib/ext:/usr/java/packages/lib/ext
java.home=/home/yourkit/yjp-2015-build-15078/jre64
java.io.tmpdir=/tmp
java.library.path=/home/yourkit/yjp-2015-build-15078/bin/linux-x86-64:/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
java.runtime.name=Java(TM) SE Runtime Environment
java.runtime.version=1.8.0_65-b17
java.specification.name=Java Platform API Specification
java.specification.vendor=Oracle Corporation
java.specification.version=1.8
java.vendor.url.bug=http://bugreport.sun.com/bugreport/
java.vendor.url=http://java.oracle.com/
java.vendor=Oracle Corporation
java.version=1.8.0_65
java.vm.info=mixed mode
java.vm.name=Java HotSpot(TM) 64-Bit Server VM
java.vm.specification.name=Java Virtual Machine Specification
java.vm.specification.vendor=Oracle Corporation
java.vm.specification.version=1.8
java.vm.vendor=Oracle Corporation
java.vm.version=25.65-b01
line.separator=
os.arch=amd64
os.name=Linux
os.version=3.13.0-48-generic
path.separator=:
sun.arch.data.model=64
sun.boot.class.path=/home/yourkit/yjp-2015-build-15078/jre64/lib/resources.jar:/home/yourkit/yjp-2015-build-15078/jre64/lib/rt.jar:/home/yourkit/yjp-2015-build-15078/jre64/lib/sunrsasign.jar:/home/yourkit/yjp-2015-build-15078/jre64/lib/jsse.jar:/home/yourkit/yjp-2015-build-15078/jre64/lib/jce.jar:/home/yourkit/yjp-2015-build-15078/jre64/lib/charsets.jar:/home/yourkit/yjp-2015-build-15078/jre64/lib/jfr.jar:/home/yourkit/yjp-2015-build-15078/jre64/classes
sun.boot.library.path=/home/yourkit/yjp-2015-build-15078/jre64/lib/amd64
sun.cpu.endian=little
sun.cpu.isalist=
sun.font.fontmanager=sun.awt.X11FontManager
sun.io.unicode.encoding=UnicodeLittle
sun.java.command=/home/yourkit/yjp-2015-build-15078/bin/../lib/yjp.jar -attach 1476
sun.java.launcher=SUN_STANDARD
sun.jnu.encoding=UTF-8
sun.management.compiler=HotSpot 64-Bit Tiered Compilers
sun.os.patch.level=unknown
user.country=US
user.dir=/home/yourkit/yjp-2015-build-15078/bin
user.home=/home/ubuntu
user.language=en
user.name=ubuntu
user.timezone=Etc/UTC
Environment:
DERBY_HOME=/usr/lib/jvm/java-8-oracle/db
HOME=/home/ubuntu
J2REDIR=/usr/lib/jvm/java-8-oracle/jre
J2SDKDIR=/usr/lib/jvm/java-8-oracle
JAVA_HOME=/usr/lib/jvm/java-8-oracle
LANG=en_US.UTF-8
LD_LIBRARY_PATH=/home/yourkit/yjp-2015-build-15078/bin/linux-x86-64
LESSCLOSE=/usr/bin/lesspipe %s %s
LESSOPEN=| /usr/bin/lesspipe %s
LOGNAME=ubuntu
LS_COLORS=rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arj=01;31:*.taz=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.dz=01;31:*.gz=01;31:*.lz=01;31:*.xz=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.jpg=01;35:*.jpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.axv=01;35:*.anx=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.axa=00;36:*.oga=00;36:*.spx=00;36:*.xspf=00;36:
MAIL=/var/mail/ubuntu
NLSPATH=/usr/dt/lib/nls/msg/%L/%N.cat
OLDPWD=/home/ubuntu
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/usr/lib/jvm/java-8-oracle/bin:/usr/lib/jvm/java-8-oracle/db/bin:/usr/lib/jvm/java-8-oracle/jre/bin
PWD=/home/yourkit/yjp-2015-build-15078/bin
SHELL=/bin/bash
SHLVL=1
SSH_CLIENT=49.207.180.185 40292 22
SSH_CONNECTION=49.207.180.185 40292 172.31.24.197 22
SSH_TTY=/dev/pts/0
TERM=xterm
USER=ubuntu
XDG_RUNTIME_DIR=/run/user/1000
XDG_SESSION_ID=1
XFILESEARCHPATH=/usr/dt/app-defaults/%L/Dt
_=./yjp.sh
---------------------------------------------------------------------
15078 0.022: com.yourkit.Main1: starting...
15078 0.022: com.yourkit.Main1: number of args: 2
15078 0.022: com.yourkit.Main1: arg = -attach
15078 0.022: com.yourkit.Main1: arg = 1476
15078 0.088: com.yourkit.Main1: oomeDumperStatus: 1
Attaching to process 1476 using default options
15078 0.100: com.yourkit.g.u.q: Process type: _64_BIT
15078 0.100: com.yourkit.g.u.q: Process path: /usr/lib/jvm/java-7-openjdk-amd64/bin/java
15078 0.104: com.yourkit.g.u.q: Trying to attach as to a 64-bit JVM:
/home/yourkit/yjp-2015-build-15078/jre64/bin/java
-Xbootclasspath/a:/home/yourkit/yjp-2015-build-15078/lib/tools.jar
-Dfile.encoding=UTF-8
-cp
/home/yourkit/yjp-2015-build-15078/lib/yjp.jar
com.yourkit.Attach
1476
/home/yourkit/yjp-2015-build-15078/bin/linux-x86-64/libyjpagent.so
15078 0.193: com.yourkit.g.u.q: Command failed:
exit code: 3
stdout:
PID: 1476
path_to_agent: /home/yourkit/yjp-2015-build-15078/bin/linux-x86-64/libyjpagent.so
startupOptions:
java.io.IOException: Operation not permitted
at sun.tools.attach.LinuxVirtualMachine.sendQuitTo(Native Method)
at sun.tools.attach.LinuxVirtualMachine.<init>(LinuxVirtualMachine.java:91)
at sun.tools.attach.LinuxAttachProvider.attachVirtualMachine(LinuxAttachProvider.java:63)
at com.sun.tools.attach.VirtualMachine.attach(VirtualMachine.java:208)
at com.yourkit.Attach.main(a:94)
com.yourkit.runtime.PresentableException: java.io.IOException: Operation not permitted
at com.yourkit.g.u.q.a(a:46)
at com.yourkit.g.u.c.a(a:122)
at com.yourkit.Main1.for(a:300)
at com.yourkit.Main1.entry(a:320)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.yourkit.Main$2.run(a:21)
Attach to a running JVM failed.
Solution: start JVM with the profiler agent instead of attaching it to a running JVM:
https://www.yourkit.com/docs/java/help/running_with_profiler.jsp
注意:我的问题是，
- 需要安装步骤 Java Profiler for JVM。
- 如何通过远程连接。
最佳答案
你的套件:
1. You need to install yourkit both on local development machine and remote mahine that you wish to profile
2. On local dev machine :
a. Cd to bin and then execute ./yjp.sh -> This will open a console to debug
3. On Remote server
a. Scp the yjp.tar file to remote machine. Untar it
b. Cd to bin directory and attach the yourkit agent to the process you want to profile
i. This can be done : ./yjp.sh -attach -> And then select the process id you want to attach. That’s it
ii. Or other way is ./yjp.sh -attach <PID>
c. Open the specific port on which yjp agent is listening. Not the one application is listening (Usually the ports will be ranging from 10001 to blah blah)
iptables -P INPUT ACCEPT
4. On local dev yourkit software, click on "Connect to remote application"
Enter <hostIPaddress>:<port#ofYJP>
That’s it !! Profiler is now attached and you can debug :) Happy Profiling !!
关于java - 来自 JVM 的 YourKit Java Profiler - 远程连接向导，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/34018901/