Mac用JVM命令查看进程出现 DebuggerException: Can‘t attach symbolicator to the process

原创于 2023-08-05 22:40:12 发布 · 438 阅读

0 ·

CC 4.0 BY-SA版权

文章标签：

#jvm #mac

java 专栏收录该内容

9 篇文章

订阅专栏

本文讲述了在使用JDK8时遇到的符号性连接到进程的问题，解决方法是升级到更高版本的JDK，同时指出原项目对JDK引用无需改变。附带展示了使用jinfo和jmap进行调试的相关配置。

localhost:~ littleCute$ jinfo -flags 10726

Attaching to process ID 10726, please wait...

Error attaching to process: sun.jvm.hotspot.debugger.DebuggerException: Can't attach symbolicator to the process

sun.jvm.hotspot.debugger.DebuggerException: sun.jvm.hotspot.debugger.DebuggerException: Can't attach symbolicator to the process

at sun.jvm.hotspot.debugger.bsd.BsdDebuggerLocal$BsdDebuggerLocalWorkerThread.execute(BsdDebuggerLocal.java:169)

at sun.jvm.hotspot.debugger.bsd.BsdDebuggerLocal.attach(BsdDebuggerLocal.java:287)

at sun.jvm.hotspot.HotSpotAgent.attachDebugger(HotSpotAgent.java:671)

at sun.jvm.hotspot.HotSpotAgent.setupDebuggerDarwin(HotSpotAgent.java:659)

at sun.jvm.hotspot.HotSpotAgent.setupDebugger(HotSpotAgent.java:341)

at sun.jvm.hotspot.HotSpotAgent.go(HotSpotAgent.java:304)

at sun.jvm.hotspot.HotSpotAgent.attach(HotSpotAgent.java:140)

at sun.jvm.hotspot.tools.Tool.start(Tool.java:185)

at sun.jvm.hotspot.tools.Tool.execute(Tool.java:118)

at sun.jvm.hotspot.tools.JInfo.main(JInfo.java:138)

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:498)

at sun.tools.jinfo.JInfo.runTool(JInfo.java:108)

at sun.tools.jinfo.JInfo.main(JInfo.java:76)

Caused by: sun.jvm.hotspot.debugger.DebuggerException: Can't attach symbolicator to the process

at sun.jvm.hotspot.debugger.bsd.BsdDebuggerLocal.attach0(Native Method)

at sun.jvm.hotspot.debugger.bsd.BsdDebuggerLocal.access$100(BsdDebuggerLocal.java:65)

at sun.jvm.hotspot.debugger.bsd.BsdDebuggerLocal$1AttachTask.doit(BsdDebuggerLocal.java:278)

at sun.jvm.hotspot.debugger.bsd.BsdDebuggerLocal$BsdDebuggerLocalWorkerThread.run(BsdDebuggerLocal.java:144)

问题的来源是JDK8会妨碍正在运行的JVM，再装个高版本的JDK就可以调试了，原项目JDK的引用不用变。

localhost:~ littleCute$ java -version
java version "20.0.2" 2023-07-18
Java(TM) SE Runtime Environment (build 20.0.2+9-78)
Java HotSpot(TM) 64-Bit Server VM (build 20.0.2+9-78, mixed mode, sharing)

此时，我们就可以用jinfo、jmap调试了

localhost:~ littleCute$ jinfo -flags 11443
VM Flags:
-XX:-BytecodeVerificationLocal -XX:-BytecodeVerificationRemote -XX:CICompilerCount=3 -XX:CompressedClassSpaceSize=44040192 -XX:InitialHeapSize=134217728 -XX:+ManagementServer -XX:MaxHeapSize=2147483648 -XX:MaxMetaspaceSize=52428800 -XX:MaxNewSize=715653120 -XX:MetaspaceSize=52428800 -XX:MinHeapDeltaBytes=524288 -XX:NewSize=44564480 -XX:OldSize=89653248 -XX:TieredStopAtLevel=1 -XX:+UseCompressedClassPointers -XX:+UseCompressedOops -XX:+UseFastUnorderedTimeStamps -XX:+UseParallelGC