[NIFI-5148] Solr processors failing to authenticate against Kerberized Solr

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.6.0
• Fix Version/s: 1.7.0
• Assignee: Bryan Bende
• Reporter: Bryan Bende
• Created: 03/May/18 21:08
• Updated: 05/Sep/19 15:26
• Resolved: 30/May/18 18:23

Description

It appears that with the new default value of "useSubjectCredsOnly=true" in NiFi's bootstrap.conf that this can cause an issue for the Solr processors when talking to a kerberized Solr.

The SolrJ client code that we are using specifically calls this out as being problematic:

https://github.com/apache/lucene-solr/blob/branch_6x/solr/solrj/src/java/org/apache/solr/client/solrj/impl/Krb5HttpClientConfigurer.java#L75-L88

We should refactor the kerberos approach in the Solr processors to resolve this issue and make general improvements. We should be performing a JAAS login and wrapping calls in Subject.doAs, and we should try and move away from the system level JAAS property and leverage the new keytab controller service.

 

Issue Links

• is related to: SOLR-13726 Krb5HttpClientBuilder avoid setting javax.security.auth.useSubjectCredsOnly
• links to: GitHub Pull Request #2674