如何在OpenJ9 9/阿尔卑斯容器上使用JProfiler 12.0.3建立远程分析

Question

我正在尝试用jprofiler 12.0.3设置一个高寒linux对接器容器，这样我就可以远程连接到它。

在我的Dockerfile里

FROM adoptopenjdk/openjdk11-openj9:alpine-slim
...
RUN wget https://download-gcdn.ej-technologies.com/jprofiler/jprofiler_linux_12_0_3.tar.gz -P /jprofiler/ && tar -xzf jprofiler_linux_12_0_3.tar.gz -C /jprofiler && rm /jprofiler/jprofiler_linux_12_0_3.tar.gz
ENTRYPOINT ["./startup.sh"]

在我的startup.sh文件中：

...
JAVA_OPTS="$JAVA_OPTS -agentpath:/jprofiler/jprofiler12.0.3/bin/linux_musl-x64/libjprofilerti.so=port=8849,nowait"
...

但是，当我使用上面的Dockerfile构建并运行docker映像时，我得到：

Starting app with JAVA_OPTS:  -agentpath:/jprofiler/jprofiler12.0.3/bin/linux_musl-x64/libjprofilerti.so=port=8849,nowait
JProfiler> Protocol version 64
JProfiler> Thread status info workaround enabled.
JProfiler> OpenJ9 JVMTI version 1.1 detected.
JProfiler> Java 11 detected.
JProfiler> Don't wait for frontend to connect.
JProfiler> 64-bit library (musl)
JProfiler> Could not locate the config file.
JProfiler> Please specify config=[config filename].
JProfiler> If you are running JProfiler's frontend on a different
JProfiler> machine you have to copy the file jprofiler_config.xml to this
JProfiler> computer. The file is located in $HOME/.jprofiler12 or
JProfiler> in C:\Users\[username]\.jprofiler12.

如果我将基本图像更改为像下面这样的热点图像：

FROM adoptopenjdk:11-jre-hotspot-focal
...
RUN wget https://download-gcdn.ej-technologies.com/jprofiler/jprofiler_linux_12_0_3.tar.gz -P /jprofiler/ && tar -xzf jprofiler_linux_12_0_3.tar.gz -C /jprofiler && rm /jprofiler/jprofiler_linux_12_0_3.tar.gz
ENTRYPOINT ["./startup.sh"]

和startup.sh到：

... 
JAVA_OPTS="$JAVA_OPTS -agentpath:/jprofiler/jprofiler12.0.3/bin/linux_musl-x64/libjprofilerti.so=port=8849,nowait"    
...

我得到了以下输出，我可以使用JProfiler远程连接到这个JVM：

Starting app with JAVA_OPTS:  -agentpath:/jprofiler/jprofiler12.0.3/bin/linux-x64/libjprofilerti.so=port=8849,nowait
JProfiler> Protocol version 64
JProfiler> Java 11 detected.
JProfiler> Don't wait for frontend to connect.
JProfiler> 64-bit library
JProfiler> Starting up without initial configuration.
JProfiler> Listening on port: 8849.
JProfiler> Enabling native methods instrumentation.
JProfiler> Can retransform classes.
JProfiler> Can retransform any class.
JProfiler> Native library initialized
JProfiler> VM initialized
JProfiler> Retransforming 162 base class files.
JProfiler> Base classes instrumented.

您是否知道高寒图像为什么会以这种方式运行，以及是否有任何方法来解决这个配置文件问题？

Answer 1

区别在于OpenJ9和Hotspot VM之间的区别。对于OpenJ9 JProfiler，在启动时需要配置设置，因此必须为-agentpath参数指定"config“选项。

您可以使用远程集成向导(Session->Integration >)集成来获得设置此向导的帮助。