[
https://issues.apache.org/jira/browse/SOLR-16240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17550949#comment-17550949
]
Jesús Ricardo Ballesteros Molina commented on SOLR-16240:
---------------------------------------------------------
I started the solr service manually with this command:
{code:java}
su - solr -c "/opt/solr/bin/solr start -Dsolr.modules=hadoop-auth"{code}
It seems the service is not getting the SOLR_MODULES configuration I put in the
/etc/default/solr.in.sh
Then, I get a different error:
{code:java}
22-06-07 11:31:53.651 INFO (main) [ ] o.a.s.p.PackageLoader /packages.json
updated to version -1
2022-06-07 11:31:53.664 INFO (main) [ ] o.a.s.c.CoreContainer Initializing
authorization plugin: solr.RuleBasedAuthorizationPlugin
2022-06-07 11:31:53.673 INFO (main) [ ] o.a.s.c.CoreContainer Initializing
authentication plugin: solr.KerberosPlugin
2022-06-07 11:31:53.690 INFO (main) [ ] o.a.s.s.h.KerberosPlugin Params:
{token.valid=30,
kerberos.principal=HTTP/sa3secglbsolr02.a3sec.local@A3SEC.LOCAL,
kerberos.keytab=/home/debian/sa3secglbsolr02.keytab,
cookie.domain=sa3secglbsolr02.a3sec.local:8983, cookie.path=/, type=kerberos,
kerberos.name.rules=DEFAULT, kerberos.name.rules.mechanism=hadoop,
delegation-token.json-mapper.AUTO_CLOSE_TARGET=false}
2022-06-07 11:31:53.696 ERROR (main) [ ] o.a.s.s.CoreContainerProvider Could
not start Solr. Check solr/home property and the logs
2022-06-07 11:31:53.713 ERROR (main) [ ] o.a.s.c.SolrCore null =>
org.apache.solr.common.SolrException: Error initializing kerberos
authentication plugin: javax.servlet.ServletException:
java.lang.ClassNotFoundException:
org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler
at
org.apache.solr.security.hadoop.KerberosPlugin.init(KerberosPlugin.java:100)
org.apache.solr.common.SolrException: Error initializing kerberos
authentication plugin: javax.servlet.ServletException:
java.lang.ClassNotFoundException:
org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler
at
org.apache.solr.security.hadoop.KerberosPlugin.init(KerberosPlugin.java:100)
~[?:?]
at
org.apache.solr.core.CoreContainer.initializeAuthenticationPlugin(CoreContainer.java:529)
~[solr-core-9.0.0.jar:9.0.0 a4eb7aa123dc53f8dac74d80b66a490f2d6b4a26 - janhoy
- 2022-05-05 01:00:08]
at
org.apache.solr.core.CoreContainer.reloadSecurityProperties(CoreContainer.java:1053)
~[solr-core-9.0.0.jar:9.0.0 a4eb7aa123dc53f8dac74d80b66a490f2d6b4a26 - janhoy
- 2022-05-05 01:00:08]
at org.apache.solr.core.CoreContainer.load(CoreContainer.java:765)
~[solr-core-9.0.0.jar:9.0.0 a4eb7aa123dc53f8dac74d80b66a490f2d6b4a26 - janhoy -
2022-05-05 01:00:08]
at
org.apache.solr.servlet.CoreContainerProvider.createCoreContainer(CoreContainerProvider.java:376)
~[solr-core-9.0.0.jar:9.0.0 a4eb7aa123dc53f8dac74d80b66a490f2d6b4a26 - janhoy
- 2022-05-05 01:00:08]
at
org.apache.solr.servlet.CoreContainerProvider.init(CoreContainerProvider.java:226)
~[solr-core-9.0.0.jar:9.0.0 a4eb7aa123dc53f8dac74d80b66a490f2d6b4a26 - janhoy
- 2022-05-05 01:00:08]
at
org.apache.solr.servlet.CoreContainerProvider.contextInitialized(CoreContainerProvider.java:110)
~[solr-core-9.0.0.jar:9.0.0 a4eb7aa123dc53f8dac74d80b66a490f2d6b4a26 - janhoy
- 2022-05-05 01:00:08]
at
org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:1067)
~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:572)
~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.server.handler.ContextHandler.contextInitialized(ContextHandler.java:996)
~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:746)
~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:379)
~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1449)
~[jetty-webapp-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1414)
~[jetty-webapp-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:910)
~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:288)
~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:524)
~[jetty-webapp-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.server.handler.gzip.GzipHandler.doStart(GzipHandler.java:426)
~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.Server.start(Server.java:423)
~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at org.eclipse.jetty.server.Server.doStart(Server.java:387)
~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
at
org.eclipse.jetty.xml.XmlConfiguration.lambda$main$3(XmlConfiguration.java:1907)
~[jetty-xml-9.4.44.v20210927.jar:9.4.44.v20210927]
at java.security.AccessController.doPrivileged(Native Method) ~[?:?]
at org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:1857)
~[jetty-xml-9.4.44.v20210927.jar:9.4.44.v20210927]
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
~[?:?]
at
jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
~[?:?]
at
jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[?:?]
at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
at org.eclipse.jetty.start.Main.invokeMain(Main.java:218)
~[start.jar:9.4.44.v20210927]
at org.eclipse.jetty.start.Main.start(Main.java:491)
~[start.jar:9.4.44.v20210927]
at org.eclipse.jetty.start.Main.main(Main.java:77)
~[start.jar:9.4.44.v20210927]
{code}
> org.apache.solr.common.SolrException: Error loading class
> 'solr.KerberosPlugin'
> --------------------------------------------------------------------------------
>
> Key: SOLR-16240
> URL: https://issues.apache.org/jira/browse/SOLR-16240
> Project: Solr
> Issue Type: Task
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Authentication
> Affects Versions: 9.0
> Reporter: Jesús Ricardo Ballesteros Molina
> Priority: Major
> Labels: kerberos, solrcloud
>
> Hello everyone. I upgraded my test environment cluster from 8.11.1 to 9.0.0
> and I'm experimenting this issue. Anytime I start the solr service I get this
> error from logs and I don't know what I have to do to solve it:
> {code:java}
> 2022-06-07 08:06:47.801 ERROR (main) [ ] o.a.s.c.SolrCore null =>
> org.apache.solr.common.SolrException: Error loading class
> 'solr.KerberosPlugin'
> at
> org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:543)
> org.apache.solr.common.SolrException: Error loading class
> 'solr.KerberosPlugin'
> at
> org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:543)
> ~[solr-core-9.0.0.jar:9.0.0 a4eb7aa123dc53f8dac74d80b66a490f2d6b4a26 -
> janhoy - 2022-05-05 01:00:08]
> at
> org.apache.solr.core.SolrResourceLoader.newInstance(SolrResourceLoader.java:604)
> ~[solr-core-9.0.0.jar:9.0.0 a4eb7aa123dc53f8dac74d80b66a490f2d6b4a26 -
> janhoy - 2022-05-05 01:00:08]
> at
> org.apache.solr.core.CoreContainer.initializeAuthenticationPlugin(CoreContainer.java:521)
> ~[solr-core-9.0.0.jar:9.0.0 a4eb7aa123dc53f8dac74d80b66a490f2d6b4a26 -
> janhoy - 2022-05-05 01:00:08]
> at
> org.apache.solr.core.CoreContainer.reloadSecurityProperties(CoreContainer.java:1053)
> ~[solr-core-9.0.0.jar:9.0.0 a4eb7aa123dc53f8dac74d80b66a490f2d6b4a26 -
> janhoy - 2022-05-05 01:00:08]
> at org.apache.solr.core.CoreContainer.load(CoreContainer.java:765)
> ~[solr-core-9.0.0.jar:9.0.0 a4eb7aa123dc53f8dac74d80b66a490f2d6b4a26 - janhoy
> - 2022-05-05 01:00:08]
> at
> org.apache.solr.servlet.CoreContainerProvider.createCoreContainer(CoreContainerProvider.java:376)
> ~[solr-core-9.0.0.jar:9.0.0 a4eb7aa123dc53f8dac74d80b66a490f2d6b4a26 -
> janhoy - 2022-05-05 01:00:08]
> at
> org.apache.solr.servlet.CoreContainerProvider.init(CoreContainerProvider.java:226)
> ~[solr-core-9.0.0.jar:9.0.0 a4eb7aa123dc53f8dac74d80b66a490f2d6b4a26 -
> janhoy - 2022-05-05 01:00:08]
> at
> org.apache.solr.servlet.CoreContainerProvider.contextInitialized(CoreContainerProvider.java:110)
> ~[solr-core-9.0.0.jar:9.0.0 a4eb7aa123dc53f8dac74d80b66a490f2d6b4a26 -
> janhoy - 2022-05-05 01:00:08]
> at
> org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:1067)
> ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:572)
> ~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.server.handler.ContextHandler.contextInitialized(ContextHandler.java:996)
> ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:746)
> ~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:379)
> ~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1449)
> ~[jetty-webapp-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1414)
> ~[jetty-webapp-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:910)
> ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:288)
> ~[jetty-servlet-9.4.44.v20210927.jar:9.4.44.v20210927]
> at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:524)
> ~[jetty-webapp-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
> ~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
> ~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
> ~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
> ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
> ~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
> ~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
> ~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
> ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
> ~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
> ~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
> ~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
> ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
> ~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
> ~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
> ~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
> ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
> ~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
> ~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
> ~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
> ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.server.handler.gzip.GzipHandler.doStart(GzipHandler.java:426)
> ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
> ~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
> ~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
> at org.eclipse.jetty.server.Server.start(Server.java:423)
> ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
> ~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
> ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
> at org.eclipse.jetty.server.Server.doStart(Server.java:387)
> ~[jetty-server-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
> ~[jetty-util-9.4.44.v20210927.jar:9.4.44.v20210927]
> at
> org.eclipse.jetty.xml.XmlConfiguration.lambda$main$3(XmlConfiguration.java:1907)
> ~[jetty-xml-9.4.44.v20210927.jar:9.4.44.v20210927]
> at java.security.AccessController.doPrivileged(Native Method) ~[?:?]
> at
> org.eclipse.jetty.xml.XmlConfiguration.main(XmlConfiguration.java:1857)
> ~[jetty-xml-9.4.44.v20210927.jar:9.4.44.v20210927]
> at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> ~[?:?]
> at
> jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> ~[?:?]
> at
> jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> ~[?:?]
> at java.lang.reflect.Method.invoke(Method.java:566) ~[?:?]
> at org.eclipse.jetty.start.Main.invokeMain(Main.java:218)
> ~[start.jar:9.4.44.v20210927]
> at org.eclipse.jetty.start.Main.start(Main.java:491)
> ~[start.jar:9.4.44.v20210927]
> at org.eclipse.jetty.start.Main.main(Main.java:77)
> ~[start.jar:9.4.44.v20210927]
> Caused by: java.lang.ClassNotFoundException: solr.KerberosPlugin
> at java.net.URLClassLoader.findClass(URLClassLoader.java:476) ~[?:?]
> at java.lang.ClassLoader.loadClass(ClassLoader.java:589) ~[?:?]
> at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:904)
> ~[?:?]
> at java.lang.ClassLoader.loadClass(ClassLoader.java:522) ~[?:?]
> at java.lang.Class.forName0(Native Method) ~[?:?]
> at java.lang.Class.forName(Class.java:398) ~[?:?]
> at
> org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:527)
> ~[solr-core-9.0.0.jar:9.0.0 a4eb7aa123dc53f8dac74d80b66a490f2d6b4a26 -
> janhoy - 2022-05-05 01:00:08]
> ... 55 more{code}
> When I rollback to 8.11.1 with exactly the same configuration I don't
> experiment this issue.
> I tried:
> 1. Set the "SOLR_JETTY_HOST="0.0.0.0"
> 2. Set the "SOLR_MODULES=hadoop-auth" because it uses kerberos too.
> 3. I read the documentation about
> [Kerberos|https://solr.apache.org/guide/solr/latest/deployment-guide/kerberos-authentication-plugin.html]
> Authentication and it's pretty similar to the 8.11.1 version.
> 4. I modified my security.json like this:
> {code:java}
> {"authentication": {"class": "solr.KerberosPlugin"}}{code}
> I don't know if there's something missing on the documentation or if I doing
> something wrong, which is the most probably.
> I hope the issue is well described, I searched in the web but I haven't found
> anything related.
>
> Best regards.
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