キャット：
以前の今日は、私が最近発売され、ページがちょうど大きな醜いで満たされていたことをサイトを訪問しましたjasperexception: java.io.filenotfoundexception: /opt/tomcat/webapps/root/web-inf/lib/jstl-1.2.jar (too many open files)。私は私のサーバーログとTomcatのログをチェックし、彼らが同じエラーでいっぱいでした。私は、サイトの稼働を維持するために、一時的なソリューションとしてTomcatの最大オープンファイル制限を増加させたが、それはすぐに再びいっぱいです。私はこの1のために使用したのと同じ方法で他のサイトを立ち上げ、そして前にこの問題を抱えていたことがありません。私は別のやった唯一のことは、この時間は私がMobiriseで使用されるいくつかのスクリプトが犯人かもしれないことを排除していないよので、フロントエンドのための基本レイアウトを作るために使用Mobiriseました。私はTomcatがオープンしたファイルのリストを取得する場合でも、私はそれはのtomcat-users.xmlのオープンのコピーの数百を持っていることがわかり、それはちょうどより多くの開いて保持します。
...
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
...
私はそれがこれをやっている理由を理解していません。私は自分のコードをスキャンし、デバッグ、およびTomcatは、あまりにも多くのファイルを開くに保つ問題については、インターネットを精練、彼らはすべてちょうど言ってきた「最大ファイルの制限を増やします。」それらのどれもちょうど無限に単一のファイルのコピーを開くにTomcatに関する問題や言及何かのルートに対処していません。
[EDIT]：ここにFileNotFoundExceptionの完全なスタックトレースは次のとおりです。
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)
これは、エラーが（Tomcatの中に開いている非常に多くのファイルがありますが、サイト上のページをロードするために、すなわち毎回誰かの試みを）発生するたびにログに記録するのと同じスタックトレースです
クリストファー・シュルツ：
これはによって引き起こされたのTomcat 9.0.13のバグのTomcat 9.0.14で修正されました。