Hello again, firstable, thanks to Chriss and Shawn for your replies. I opened the jira ticket:
https://issues.apache.org/jira/browse/SOLR-15617 At the moment I disabled the warning in the log4j2.xml Thanks for everything. Sep 2, 2021, 00:21 by hossman_luc...@fucit.org: > > : Everything is working OK, I just receive this warning message so often: > : > : 2021-09-01 20:29:46.789 WARN (qtp1533985074-61) [ ] > o.a.h.s.a.u.KerberosName auth_to_local rule mechanism not set.Using default > of hadoop > > ... > > : file. As I understand this warning should be if I use HDFS or Hadoop > : Authentication but this is not the case. > > IIUC, the Solr KerberosPlugin uses hadoop Kerberos utility classes > under the covers, even when you aren't explicitly using hadoop based > authentication ... i gather that one/some of those utilities make > assumptions about how they are being used. > > I don't know that there is anything you personally can change about how > solr is configured to prevent this WARN from happening ... from poking > around the KerberosName.java code, i gather that somewhere in the Solr > KerberosPlugin lifecycle, solr should be calling > KerberosName.setRuleMechanism(...) (or calling some other hadoop kerberos > helper util in such a way that it calls that method) > > Can you please file a jira pointing out this warning and this email > thread? ... in the meantime i think the only thing you can do is disable > the WARN level from the KerberosName logger in your log4j config. > > > -Hoss > http://www.lucidworks.com/ >