AMBARI 2.7.0.0/ ERROR "org.springframework.security.web.firewall.RequestRejectedException: The request was rejected because the URL was not normalized."

[#1]

Environment

• CentOS 7
• Ambari 2.7.0.0

Error:

After ambari-server setup, and deploying the desired configuration via Ambari, found this error in the ambari-server.log.

p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 12.0px 'Courier New'; color: #28fe14; background-color: #000000; background-color: rgba(0, 0, 0, 0.9)}
span.s1 {font-variant-ligatures: no-common-ligatures}
span.s2 {font-variant-ligatures: no-common-ligatures; color: #000000; background-color: rgba(40, 254, 20, 0.9)}



2018-08-21 20:09:05,733  WARN [ambari-client-thread-36] HttpChannel:507 - /api/v1/clusters//requests/3

org.springframework.security.web.firewall.RequestRejectedException: The request was rejected because the URL was not normalized.

        at org.springframework.security.web.firewall.StrictHttpFirewall.getFirewalledRequest(StrictHttpFirewall.java:123)

        at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:193)

        at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177)

        at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:347)

        at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:263)

        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1621)

        at org.apache.ambari.server.api.MethodOverrideFilter.doFilter(MethodOverrideFilter.java:73)

        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1621)

        at org.apache.ambari.server.api.AmbariPersistFilter.doFilter(AmbariPersistFilter.java:53)

        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1621)

        at org.apache.ambari.server.security.AbstractSecurityHeaderFilter.doFilter(AbstractSecurityHeaderFilter.java:130)

        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1621)

        at org.eclipse.jetty.servlets.GzipFilter.doFilter(GzipFilter.java:51)

        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1621)

        at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:541)

        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)

        at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)

        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:1592)

        at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)

        at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1239)

        at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)

        at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:481)

        at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1561)

        at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)

        at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1141)

        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)

        at org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:561)

        at org.apache.ambari.server.controller.AmbariHandlerList.processHandlers(AmbariHandlerList.java:221)

        at org.apache.ambari.server.controller.AmbariHandlerList.processHandlers(AmbariHandlerList.java:210)

        at org.apache.ambari.server.controller.AmbariHandlerList.handle(AmbariHandlerList.java:140)

        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:320)

        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:122)

        at org.eclipse.jetty.util.thread.strategy.ExecutingExecutionStrategy.invoke(ExecutingExecutionStrategy.java:58)

        at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:201)

        at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:133)

        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:672)

        at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:590)

        at java.lang.Thread.run(Thread.java:745)

Ambari UI would be stuck at something like this:

Workaround

• Try the "retry" option, for me it went past the "waiting" state and through to the next error, which is a know issue

File "/usr/lib/ambari-agent/lib/resource_management/core/source.py", line 197, in get_content    raise Fail("Failed to download file from {0} due to HTTP error: {1}".format(self.url, str(ex)))resource_management.core.exceptions.Fail: Failed to download file from http://xlhive3.openstacklocal:8080/resources/mysql-connector-java.jar due to HTTP error: HTTP Error 404: Not Found

• Try downloading and appropriately naming the mysql-connector jar. If that doesn't work, the copy the jar under /var/lib/ambari-server/resources
• Restart ambari-server and retry the setup