I'm trying to get my SonarQube 6.4 (build 25310) to connect to the update site but I just can't do it.
2017.07.11 11:09:53 ERROR web[AV0w6JSYUKDM21CUAAAg][o.s.s.p.UpdateCenterClient] Fail to connect to update center
at org.sonar.core.util.DefaultHttpDownloader.failToDownload(DefaultHttpDownloader.java:156)
at org.sonar.core.util.DefaultHttpDownloader.readString(DefaultHttpDownloader.java:114)
at org.sonar.api.utils.UriReader.readString(UriReader.java:72)
at org.sonar.server.plugins.UpdateCenterClient.init(UpdateCenterClient.java:109)
at org.sonar.server.plugins.UpdateCenterClient.getUpdateCenter(UpdateCenterClient.java:92)
at org.sonar.server.plugins.UpdateCenterMatrixFactory.getUpdateCenter(UpdateCenterMatrixFactory.java:44)
at org.sonar.server.plugins.ws.PluginWSCommons.compatiblePlugins(PluginWSCommons.java:279)
at org.sonar.server.plugins.ws.PluginWSCommons.compatiblePluginsByKey(PluginWSCommons.java:284)
at org.sonar.server.plugins.ws.PendingAction.handle(PendingAction.java:85)
at org.sonar.server.ws.WebServiceEngine.execute(WebServiceEngine.java:103)
at org.sonar.server.ws.WebServiceFilter.doFilter(WebServiceFilter.java:86)
at org.sonar.server.platform.web.MasterServletFilter$GodFilterChain.doFilter(MasterServletFilter.java:126)
at org.sonar.server.platform.web.MasterServletFilter.doFilter(MasterServletFilter.java:95)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.sonar.server.user.UserSessionFilter.doFilter(UserSessionFilter.java:76)
at org.sonar.server.user.UserSessionFilter.doFilter(UserSessionFilter.java:63)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.sonar.server.platform.web.SecurityServletFilter.doHttpFilter(SecurityServletFilter.java:72)
at org.sonar.server.platform.web.SecurityServletFilter.doFilter(SecurityServletFilter.java:48)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.sonar.server.platform.web.RedirectFilter.doFilter(RedirectFilter.java:61)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.sonar.server.platform.web.requestid.RequestIdFilter.doFilter(RequestIdFilter.java:63)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.sonar.server.platform.web.RootFilter.doFilter(RootFilter.java:62)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.apache.catalina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:192)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:165)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at ch.qos.logback.access.tomcat.LogbackValve.invoke(LogbackValve.java:256)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:349)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:783)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:798)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1434)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
at java.net.SocketInputStream.read(SocketInputStream.java:171)
at java.net.SocketInputStream.read(SocketInputStream.java:141)
at sun.security.ssl.InputRecord.readFully(InputRecord.java:465)
at sun.security.ssl.InputRecord.read(InputRecord.java:503)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387)
at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)
at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)
at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:153)
at org.sonar.core.util.DefaultHttpDownloader$BaseHttpDownloader$HttpInputSupplier.getInput(DefaultHttpDownloader.java:273)
at org.sonar.core.util.DefaultHttpDownloader.readString(DefaultHttpDownloader.java:112)
... 49 common frames omitted
Naturally, I tried to curl the properties document manually. I got no response from the server.
Assuming it's a HTTPS issue I tried HTTP, but results are essentially the same.
I'm using CentOS 7.3, with Oracle JDK 1.8u131, if it helps.