相关疑难解决方法(0)

我知道有一些JAVA_OPTS设置为远程调试Java程序.

它们是什么,它们是什么意思？

我有一个java应用程序,它曾经在java 7中运行良好.在使用以下配置迁移到java 8后,它开始挂起.

-Xms3g -Xmx3g -verbose:gc -XX:+UseG1GC -XX:G1ReservePercent=25 -XX:+PrintGCDateStamps

我已经采取了jstack转储,它显示所有线程都处于BLOCKED状态.我也采取了jmap dump,它显示了以下信息.

有人可以帮我解决这个问题吗？

Attaching to process ID 2554, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 25.74-b02

using thread-local object allocation.
Garbage-First (G1) GC with 18 thread(s)

Heap Configuration:
   MinHeapFreeRatio         = 40
   MaxHeapFreeRatio         = 70
   MaxHeapSize              = 3221225472 (3072.0MB)
   NewSize                  = 1363144 (1.2999954223632812MB)
   MaxNewSize               = 1932525568 (1843.0MB)
   OldSize                  = 5452592 (5.1999969482421875MB)
   NewRatio                 = 2
   SurvivorRatio            = 8
   MetaspaceSize            = 21807104 (20.796875MB)
   CompressedClassSpaceSize = 1073741824 (1024.0MB)
   MaxMetaspaceSize …