java.lang.OutOfMemory错误: unable to create new native thread while starting wildfly

Question

我想在我的虚拟服务器上启动一个wildfly。每次我运行 ./wildfly/bin/standalone.sh 时，引导时都会出现以下错误:

MSC000001: Failed to start service jboss.ironjacamar.idle-remover: org.jboss.msc.service.StartException in service jboss.ironjacamar.idle-remover: java.lang.OutOfMemoryError: unable to create new native thread
    at org.jboss.as.connector.subsystems.jca.IdleRemoverService.start(IdleRemoverService.java:53)
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1948) [jboss-msc-1.2.2.Final.jar:1.2.2.Final]
    at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1881) [jboss-msc-1.2.2.Final.jar:1.2.2.Final]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_45]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_45]
    at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_45]
Caused by: java.lang.OutOfMemoryError: unable to create new native thread
    at java.lang.Thread.start0(Native Method) [rt.jar:1.8.0_45]
    at java.lang.Thread.start(Thread.java:714) [rt.jar:1.8.0_45]
    at java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:950) [rt.jar:1.8.0_45]
    at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1357) [rt.jar:1.8.0_45]
    at java.util.concurrent.Executors$DelegatedExecutorService.execute(Executors.java:668) [rt.jar:1.8.0_45]
    at org.jboss.jca.core.connectionmanager.pool.idle.IdleRemover.start(IdleRemover.java:137)
    at org.jboss.as.connector.subsystems.jca.IdleRemoverService.start(IdleRemoverService.java:51)
    ... 5 more

ulimit -a 得到以下结果:

core file size          (blocks, -c) unlimited
data seg size           (kbytes, -d) unlimited
scheduling priority             (-e) 0
file size               (blocks, -f) unlimited
pending signals                 (-i) 385262
max locked memory       (kbytes, -l) 64
max memory size         (kbytes, -m) unlimited
open files                      (-n) 1024
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) 819200
real-time priority              (-r) 0
stack size              (kbytes, -s) 10240
cpu time               (seconds, -t) unlimited
max user processes              (-u) 385262
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited

如您所见，虚拟内存是无限的，并且最大用户进程非常大。
当启动 jvm 时，我还使用 -Xss256kb 增加/减少了堆栈大小，如 in this post 中所述。但没有任何成功。
另外，在standalone.xml 中将每个子系统的 max-threads 增加 50 也不起作用(如 in this post 所述)。
您还有其他想法如何解决这个问题吗？

Java版本是

java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)

Answer 1

要修复 OutOfMemoryError，请使用 -Xmx2048m 开关启动 Java 进程。

希望这有帮助。