java.lang.OutOfMemoryError: Java heap space Exception in thread “AsyncAppender-Worker-async-console“

oneslide

288人浏览 · 2025-10-30 14:55:56

oneslide · 2025-10-30 14:55:56 发布

现象

JVM堆设置的有时候太小了，就会出现：

java.lang.OutOfMemoryError: Java heap space
Exception in thread "AsyncAppender-Worker-async-console" java.lang.OutOfMemoryError: Java heap space

解决办法

通过设置初始堆Xms和最大堆Xmx大小，来增大JVM默认堆大小。
```
"java", "-Xms2g", "-Xmx2g","-jar", "admin.jar"
```

校验该参数是否生效：

查看java进程号

app@admin-server-5cbf47696f-xbwgg:~$ jps -l
1 admin.jar
165 sun.tools.jps.Jps

查看进程INFO信息

可以看到XX:InitialHeapSize=2147483648 -XX:MaxHeapSize=2147483648, 代表堆变成了设置的2G.

app@admin-5cbf47696f-xbwgg:~$ jinfo -flags 1
Attaching to process ID 1, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 25.322-b06
Non-default VM flags: -XX:CICompilerCount=2 -XX:InitialHeapSize=2147483648 -XX:MaxHeapSize=2147483648 -XX:MaxNewSize=715653120 -XX:MinHeapDeltaBytes=524288 -XX:NewSize=715653120 -XX:OldSize=1431830528 -XX:+UseCompressedClassPointers -XX:+UseCompressedOops -XX:+UseParallelGC
Command line:  -Xms2g -Xmx2g