如何在 OpenJ9/Alpine 容器上使用 JProfiler 12.0.3 设置远程分析

Question

我正在尝试使用 jprofiler 12.0.3 设置一个高山 linux docker 容器，以便我可以远程连接到它。

在我的 Dockerfile:

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 构建然后运行 docker 图像时，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热点图像，例如：

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"    
...

我得到以下输出，我可以使用 JProfiler 远程连接到此 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.

您是否知道为什么 alpine 图像会这样，是否有任何方法可以解决此配置文件问题？

Answer 1

区别在于 OpenJ9 和 Hotspot VM。对于 OpenJ9 JProfiler 需要在启动时进行分析设置，因此您必须为 -agentpath 参数指定“配置”选项。

您可以使用远程集成向导（会话->集成向导->新远程集成）集成来获得有关设置的帮助。

如何在 OpenJ9/Alpine 容器上使用 JProfiler 12.0.3 设置远程分析

How to setup remote profiling with JProfiler 12.0.3 on OpenJ9/Alpine container

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docker

alpine

openj9