Hi Ebrahim - This is obviously a classpath related issue that would not be caused simply by restarting the gateway. Either, you have changed jars or the command line in gateway.sh script.
Given that this is a Ranger Plugin related class, I assume that you have changed that jar or introduced an extension that assumes a different version of that code. If you have backed up the jars that you have changed - which you obviously should have - then put them back and restart. HTH, --larry On Mon, Dec 28, 2020 at 11:43 PM Ebrahim Khalil Abbasi < [email protected]> wrote: > Dear all, > > I am using KNOX and its plugin in Ranger for authorization. > I restarted KNOX and Ranger and then executed the following command: > ----------------------------- > curl -ik -u admin:<PASS> https:// > <SERVER>:8443/gateway/dsgdev/livy/v1/sessions > ----------------------------- > > > I got the http error 500 > > -------------------------------- > <body><h2>HTTP ERROR 500</h2> > <p>Problem accessing /gateway/dsgdev/livy/v1/sessions. Reason: > <pre> Server Error</pre></p><hr><a href="http://eclipse.org/jetty";>Powered > by Jetty:// 9.4.12.v20180830</a><hr/></body> > ------------------------------- > > The gateway.log file shows two errors > 2020-12-29 08:03:42,348 ERROR config.RangerConfiguration > (RangerConfiguration.java:addResourceIfReadable(63)) - > addResourceIfReadable(ranger-knox-dsgdev_knox-policymgr-ssl.xml): couldn't > find resource file location > 2020-12-29 08:03:43,131 ERROR knox.gateway > (AbstractGatewayFilter.java:doFilter(69)) - Failed to execute filter: > java.lang.NoClassDefFoundError: com/kstruct/gethostname4j/Hostname > > > Would you please help me what should I do for this problem? > Ebrahim > > > > > > > >
