From 716ee09ee4536daad937b5a91069206496eb62b3 Mon Sep 17 00:00:00 2001
From: Eric Pugh <epugh@opensourceconnections.com>
Date: Sun, 24 Nov 2024 06:47:28 -0500
Subject: [PATCH] restore removed docs that are still relevant

---
 .../modules/deployment-guide/pages/solr-on-hdfs.adoc | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/solr/solr-ref-guide/modules/deployment-guide/pages/solr-on-hdfs.adoc b/solr/solr-ref-guide/modules/deployment-guide/pages/solr-on-hdfs.adoc
index f7e1393bc4c..25548bfac2c 100644
--- a/solr/solr-ref-guide/modules/deployment-guide/pages/solr-on-hdfs.adoc
+++ b/solr/solr-ref-guide/modules/deployment-guide/pages/solr-on-hdfs.adoc
@@ -276,3 +276,15 @@ Here is a sample `solrconfig.xml` configuration for storing Solr indexes on HDFS
   <int name="solr.hdfs.nrtcachingdirectory.maxcachedmb">192</int>
 </directoryFactory>
 ----
+
+If using Kerberos, you will need to add the three Kerberos related properties to the `<directoryFactory>` element in `solrconfig.xml`, such as:
+
+[source,xml]
+----
+<directoryFactory name="DirectoryFactory" class="solr.HdfsDirectoryFactory">
+   ...
+  <bool name="solr.hdfs.security.kerberos.enabled">true</bool>
+  <str name="solr.hdfs.security.kerberos.keytabfile">/etc/krb5.keytab</str>
+  <str name="solr.hdfs.security.kerberos.principal">solr/admin@KERBEROS.COM</str>
+</directoryFactory>
+----