Java Tomcat打开的文件太多(Tomcat users.xml)
今天早些时候,我访问了我最近启动的一个网站,页面上充斥着一个巨大的丑陋的Java Tomcat打开的文件太多(Tomcat users.xml),java,tomcat,Java,Tomcat,今天早些时候,我访问了我最近启动的一个网站,页面上充斥着一个巨大的丑陋的jaspereException:java.io.filenotfoundexception:/opt/tomcat/webapps/root/web-inf/lib/jstl-1.2.jar(打开的文件太多)。我检查了我的服务器日志和tomcat日志,它们都充满了相同的错误。我增加了tomcat的最大打开文件限制作为临时解决方案,以保持站点运行,但它很快又被填满了。我已经用我在这个网站上使用的相同方法启动了其他网站,以前从
jaspereException:java.io.filenotfoundexception:/opt/tomcat/webapps/root/web-inf/lib/jstl-1.2.jar(打开的文件太多)
。我检查了我的服务器日志和tomcat日志,它们都充满了相同的错误。我增加了tomcat的最大打开文件限制作为临时解决方案,以保持站点运行,但它很快又被填满了。我已经用我在这个网站上使用的相同方法启动了其他网站,以前从未遇到过这个问题。这次我做的唯一不同的事情是使用Mobirise为前端制作基本布局,所以我不排除Mobirise使用的一些脚本可能是罪魁祸首。但是当我得到tomcat打开的文件列表时,我看到它打开了成百上千个tomcat-users.xml副本,而且它只是不断打开越来越多的文件
...
java 319 tomcat 935r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 936r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 937r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 938r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 939r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 940r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 941r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 942r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 943r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 944r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 945r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 946r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 947r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 948r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 949r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 950r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 951r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 952r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 953r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 954r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 955r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 956r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 957r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 958r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 959r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 960r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 961r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 962r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 963r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
java 319 tomcat 964r REG 253,1 2164 263714 /opt/tomcat/conf/tomcat-users.xml
...
我不明白它为什么这么做。我一直在调试、扫描我的代码,并在互联网上搜索tomcat不断打开过多文件的问题,但他们都说“增加最大文件限制”。没有人解决问题的根源,也没有人提到tomcat只是无限打开单个文件的副本
[编辑]:以下是FileNotFoundException的完整堆栈跟踪:
28-Nov-2018 03:51:33.857 SEVERE [http-nio-8080-exec-5] org.apache.catalina.core.ApplicationDispatcher.invoke Servlet.service() for servlet [jsp] threw exception
java.io.FileNotFoundException: /opt/tomcat/webapps/ROOT/WEB-INF/lib/jstl-1.2.jar (Too many open files)
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:225)
at java.util.zip.ZipFile.<init>(ZipFile.java:155)
at java.util.jar.JarFile.<init>(JarFile.java:166)
at java.util.jar.JarFile.<init>(JarFile.java:130)
at org.apache.tomcat.util.compat.JreCompat.jarFileNewInstance(JreCompat.java:164)
at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:65)
at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:49)
at org.apache.tomcat.util.descriptor.tld.TldResourcePath.openJar(TldResourcePath.java:134)
at org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:125)
at org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:431)
at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:489)
at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1445)
at org.apache.jasper.compiler.Parser.parse(Parser.java:144)
at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:244)
at org.apache.jasper.compiler.ParserController.parse(ParserController.java:105)
at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:206)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:385)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:362)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:346)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:603)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:400)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:712)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:459)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:384)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312)
at kom.kitten.gingerpage.servlets.HomeServlet.doGet(HomeServlet.java:16)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at com.googlecode.objectify.ObjectifyFilter.doFilter(ObjectifyFilter.java:48)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:791)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
28-Nov-2018 03:51:33.859 SEVERE [http-nio-8080-exec-5] org.apache.catalina.core.StandardWrapperValve.invoke Servlet.service() for servlet [kom.kitten.gingerpage.servlets.HomeServlet] in conte$
java.io.FileNotFoundException: /opt/tomcat/webapps/ROOT/WEB-INF/lib/jstl-1.2.jar (Too many open files)
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(ZipFile.java:225)
at java.util.zip.ZipFile.<init>(ZipFile.java:155)
at java.util.jar.JarFile.<init>(JarFile.java:166)
at java.util.jar.JarFile.<init>(JarFile.java:130)
at org.apache.tomcat.util.compat.JreCompat.jarFileNewInstance(JreCompat.java:164)
at org.apache.tomcat.util.scan.JarFileUrlJar.<init>(JarFileUrlJar.java:65)
at org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:49)
at org.apache.tomcat.util.descriptor.tld.TldResourcePath.openJar(TldResourcePath.java:134)
at org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:125)
at org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:431)
at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:489)
at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1445)
at org.apache.jasper.compiler.Parser.parse(Parser.java:144)
at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:244)
at org.apache.jasper.compiler.ParserController.parse(ParserController.java:105)
at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:206)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:385)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:362)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:346)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:603)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:400)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:712)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:459)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:384)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312)
at kom.kitten.gingerpage.servlets.HomeServlet.doGet(HomeServlet.java:16)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at com.googlecode.objectify.ObjectifyFilter.doFilter(ObjectifyFilter.java:48)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:791)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
2018年11月28日03:51:33.857 Servlet[jsp]的严重[http-nio-8080-exec-5]org.apache.catalina.core.ApplicationDispatcher.invoke Servlet.service()引发异常
java.io.FileNotFoundException:/opt/tomcat/webapps/ROOT/WEB-INF/lib/jstl-1.2.jar(打开的文件太多)
位于java.util.zip.ZipFile.open(本机方法)
位于java.util.zip.ZipFile(ZipFile.java:225)
位于java.util.zip.ZipFile。(ZipFile.java:155)
位于java.util.jar.JarFile。(JarFile.java:166)
位于java.util.jar.JarFile。(JarFile.java:130)
位于org.apache.tomcat.util.compat.JreCompat.jarFileNewInstance(JreCompat.java:164)
位于org.apache.tomcat.util.scan.JarFileUrlJar.(JarFileUrlJar.java:65)
位于org.apache.tomcat.util.scan.JarFactory.newInstance(JarFactory.java:49)
位于org.apache.tomcat.util.descriptor.tld.TldResourcePath.openJar(TldResourcePath.java:134)
位于org.apache.jasper.compiler.TagLibraryInfoImpl.(TagLibraryInfoImpl.java:125)
位于org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:431)
位于org.apache.jasper.compiler.Parser.parseDirective(Parser.java:489)
位于org.apache.jasper.compiler.Parser.parseElements(Parser.java:1445)
位于org.apache.jasper.compiler.Parser.parse(Parser.java:144)
位于org.apache.jasper.compiler.ParserController.doParse(ParserController.java:244)
位于org.apache.jasper.compiler.ParserController.parse(ParserController.java:105)
位于org.apache.jasper.compiler.compiler.generateJava(compiler.java:206)
位于org.apache.jasper.compiler.compiler.compile(compiler.java:385)
位于org.apache.jasper.compiler.compiler.compile(compiler.java:362)
位于org.apache.jasper.compiler.compiler.compile(compiler.java:346)
位于org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:603)
位于org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:400)
位于org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386)
位于org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330)
位于javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
位于org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
位于org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
位于org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
位于org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:712)
位于org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:459)
位于org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:384)
位于org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:312)
在kom.kitten.gingerpage.servlets.HomeServlet.doGet(HomeServlet.java:16)
位于javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
位于javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
位于org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
位于org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
位于org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
位于com.googlecode.objectify.ObjectifyFilter.doFilter(ObjectifyFilter.java:48)
位于org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
位于org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
位于org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)
位于org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
位于org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
位于org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
位于org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
位于org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogVa
<Resource pathname="conf/tomcat-users.xml"
factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
type="org.apache.catalina.UserDatabase"
auth="Container" name="UserDatabase"/>
lsof -p <process Id of Tomcat>