求教问题：java.lang.OutOfMemoryError: unable to create new native thread

[请叫我大侠NO.1]

九月 24, 2019 8:26:14 上午 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet [jsp] in context with path [/NCIGVP] threw exception [An exception occurred processing JSP page /src/judgeywyNew.jsp at line 52

49: System.out.println("******jiekou*****:"+input_type2);
50:
52: SQLConnection obj_connCC_DB = new SQLConnection("CC_DB");
53: obj_connCC_DB.executeSQL("select GROUPCODE from NcsVIPCustInfo where PHONENUM = '" + ani + "' and VALIDFLAG='1'");
54: int i_row = obj_connCC_DB.getRows();
55: if (i_row>0) {


Stacktrace:] with root cause
java.lang.OutOfMemoryError: unable to create new native thread
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Thread.java:714)
at java.lang.ref.Finalizer$1.run(Finalizer.java:130)
at java.lang.ref.Finalizer$1.run(Finalizer.java:123)
at java.security.AccessController.doPrivileged(Native Method)
at java.lang.ref.Finalizer.forkSecondaryFinalizer(Finalizer.java:122)
at java.lang.ref.Finalizer.runFinalization(Finalizer.java:146)
at java.lang.Runtime.runFinalization0(Native Method)
at java.lang.Runtime.runFinalization(Runtime.java:712)
at java.lang.System.runFinalization(System.java:1006)
at com.hp.nclcc.ipivr.database.SQLConnection.<init>(SQLConnection.java:75)
at org.apache.jsp.src.judgeywyNew_jsp.performLogic(judgeywyNew_jsp.java:84)
at org.apache.jsp.src.judgeywyNew_jsp._jspService(judgeywyNew_jsp.java:262)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:439)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:442)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1082)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:623)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)


tomcat配置内存大小为：JAVA_OPTS="-server -Xms1024M -Xmx1024M -Xss512k -XX:+AggressiveOpts -XX:+UseBiasedLocking -XX:PermSize=500M -XX:MaxPermSize=8192M -XX:+DisableExplicitGC -XX:MaxTenuringThreshold=0 -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSParallelRemarkEnabled -XX:+UseCMSCompactAtFullCollection -XX:LargePageSizeInBytes=128m -XX:+UseFastAccessorMethods -XX:+UseCMSInitiatingOccupancyOnly -Djava.awt.headless=true"

[瘦死的黑骆驼]

-Xms1024M -Xmx1024M这两个不要配置成一样的，保证xmx配置小一点，你报错的是unable to create new native thread，没有多余空间来创建线程，java中线程的创建所消耗的内存好像不是jvm的内存，具体是哪块不记得了，试试看可行，年纪大了，记性不大好

[请叫我大侠NO.1]

我的服务是在linux 上的，我改了tomcat内存配置文件（catalina. sh），因为是生产环境，压力比较大，我把内存改成了-Xms1024M -Xmx2048 之后，用sh startup.sh 启动tomcat,项目起不来；改小的话不太可能，系统承受不住