I installed a Jenkins on my laptop, but cannot update the plug-in list. I just don't know how to further investigate it.
Here are some information: - My laptop have a Windows system. - I created a VirtualBox VM with CentOS7 installed. - The VM has two network adapters: one is set as NAT (for accessing internet) while the other is set as host only (for me to SSH to that VM). The default route is set on the NAT adapter. - I'm working behind my company's proxy so I set proxy information in the 'Advance' tab of Plugin Manager of Jenkins. And when I put ' https://www.google.com' into 'Test URL' box and click 'Validate Proxy', it shows 'Success' But when I click 'Check now' at the bottom of the page, nothing happened and it always show 'Update information obtained: N/A ago'. - I'm able to get the JSON data following the URL in 'Update Site' from my VM with curl (i.e. I'm able to run this command successfully on my VM and get the JSON: curl ' https://updates.jenkins.io/current/update-center.json') - My JRE is the latest one downloaded from Oracle's official site, the version is 1.8.0_171 64-Bit (jre-8u171-linux-x64.rpm). - My Jenkins is the latest one downloaded from Jenkins' official site (jenkins-2.107.3-1.1.noarch.rpm) Is there any log of Jenkins that I can check for this issue? Route on my CentOS: [root@localhost ~]# ip route default via 10.0.2.2 dev enp0s3 proto static metric 100 10.0.2.0/24 dev enp0s3 proto kernel scope link src 10.0.2.15 metric 100 192.168.56.0/24 dev enp0s8 proto kernel scope link src 192.168.56.80 metric 100 The server finally displays the following exception: <cycle to java.net.SocketException: Connection reset> Caused: javax.net.ssl.SSLException at sun.security.ssl.Alerts.getSSLException(Unknown Source) at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source) at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source) at sun.security.ssl.SSLSocketImpl.handleException(Unknown Source) at sun.security.ssl.SSLSocketImpl.handleException(Unknown Source) at sun.security.ssl.AppInputStream.read(Unknown Source) at java.io.BufferedInputStream.read1(Unknown Source) at java.io.BufferedInputStream.read(Unknown Source) at sun.net.www.MeteredStream.read(Unknown Source) at java.io.FilterInputStream.read(Unknown Source) at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(Unknown Source) at sun.nio.cs.StreamDecoder.readBytes(Unknown Source) at sun.nio.cs.StreamDecoder.implRead(Unknown Source) at sun.nio.cs.StreamDecoder.read(Unknown Source) at java.io.InputStreamReader.read(Unknown Source) at java.io.Reader.read(Unknown Source) at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:2001) at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:1980) at org.apache.commons.io.IOUtils.copy(IOUtils.java:1957) at org.apache.commons.io.IOUtils.copy(IOUtils.java:1907) at org.apache.commons.io.IOUtils.toString(IOUtils.java:778) at org.apache.commons.io.IOUtils.toString(IOUtils.java:803) at hudson.model.DownloadService.loadJSON(DownloadService.java:168) Caused: javax.net.ssl.SSLException: Connection has been shutdown at sun.security.ssl.SSLSocketImpl.checkEOF(Unknown Source) at sun.security.ssl.AppInputStream.available(Unknown Source) at java.io.BufferedInputStream.available(Unknown Source) at sun.net.www.MeteredStream.available(Unknown Source) at sun.net.www.http.KeepAliveStream.close(Unknown Source) at java.io.FilterInputStream.close(Unknown Source) at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.close(Unknown Source) at hudson.model.DownloadService.loadJSON(DownloadService.java:176) java.net.SocketException: Connection reset at java.net.SocketInputStream.read(Unknown Source) at java.net.SocketInputStream.read(Unknown Source) at sun.security.ssl.InputRecord.readFully(Unknown Source) at sun.security.ssl.InputRecord.readV3Record(Unknown Source) at sun.security.ssl.InputRecord.read(Unknown Source) at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source) at sun.security.ssl.SSLSocketImpl.readDataRecord(Unknown Source) at sun.security.ssl.AppInputStream.read(Unknown Source) at java.io.BufferedInputStream.read1(Unknown Source) at java.io.BufferedInputStream.read(Unknown Source) at sun.net.www.MeteredStream.read(Unknown Source) at java.io.FilterInputStream.read(Unknown Source) at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(Unknown Source) at sun.nio.cs.StreamDecoder.readBytes(Unknown Source) at sun.nio.cs.StreamDecoder.implRead(Unknown Source) at sun.nio.cs.StreamDecoder.read(Unknown Source) at java.io.InputStreamReader.read(Unknown Source) at java.io.Reader.read(Unknown Source) at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:2001) at org.apache.commons.io.IOUtils.copyLarge(IOUtils.java:1980) at org.apache.commons.io.IOUtils.copy(IOUtils.java:1957) at org.apache.commons.io.IOUtils.copy(IOUtils.java:1907) at org.apache.commons.io.IOUtils.toString(IOUtils.java:778) at org.apache.commons.io.IOUtils.toString(IOUtils.java:803) at hudson.model.DownloadService.loadJSON(DownloadService.java:168) at hudson.model.UpdateSite.updateDirectlyNow(UpdateSite.java:190) at hudson.PluginManager.doCheckUpdatesServer(PluginManager.java:1640) at java.lang.invoke.MethodHandle.invokeWithArguments(Unknown Source) at org.kohsuke.stapler.Function$MethodFunction.invoke(Function.java:343) at org.kohsuke.stapler.interceptor.RequirePOST$Processor.invoke(RequirePOST.java:77) at org.kohsuke.stapler.PreInvokeInterceptedFunction.invoke(PreInvokeInterceptedFunction.java:26) at org.kohsuke.stapler.Function.bindAndInvoke(Function.java:184) at org.kohsuke.stapler.Function.bindAndInvokeAndServeResponse(Function.java:117) at org.kohsuke.stapler.MetaClass$1.doDispatch(MetaClass.java:129) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:715) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:845) at org.kohsuke.stapler.MetaClass$2.doDispatch(MetaClass.java:186) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:58) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:715) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:845) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:649) at org.kohsuke.stapler.Stapler.service(Stapler.java:238) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:841) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1650) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:154) at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:157) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637) at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:99) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) at hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) at jenkins.security.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:117) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) at org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) at org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:142) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) at org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) at jenkins.security.BasicHeaderProcessor.doFilter(BasicHeaderProcessor.java:93) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) at org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249) at hudson.security.HttpSessionContextIntegrationFilter2.doFilter(HttpSessionContextIntegrationFilter2.java:67) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:90) at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:171) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637) at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:49) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637) at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:82) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637) at org.kohsuke.stapler.DiagnosticThreadNameFilter.doFilter(DiagnosticThreadNameFilter.java:30) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:524) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.Server.handle(Server.java:564) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:317) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:110) at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124) at org.eclipse.jetty.util.thread.Invocable.invokePreferred(Invocable.java:128) at org.eclipse.jetty.util.thread.Invocable$InvocableExecutor.invoke(Invocable.java:222) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:294) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:199) at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. 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