[SOLR-15617] How to get rid of this Warning "WARN (qtp1533985074-57) [ ] o.a.h.s.a.u.KerberosName auth_to_local rule mechanism not set.Using default of hadoop"

• Type: Task
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 8.9
• Fix Version/s: 9.0
• Component/s: Authentication
• Labels: authentication kerberos solr warnings

Environment

OS: Debian 10

Solr Version : 8.9

Java Version: 11

 

• Assignee: Kevin Risden
• Reporter: Jesús Ricardo Ballesteros Molina
• Created: 02/Sep/21 13:12
• Updated: 12/May/22 00:26
• Resolved: 22/Oct/21 18:33

Description

Hello, I wrote to the mailing list because I don't know how to get rid of that warning properly. A person who replied me in the mailing list asked me to open a Jira issue for this:

https://www.mail-archive.com/[e-mail]/msg01463.html

I configured Solr authentication this guide:

https://solr.apache.org/guide/8_9/kerberos-authentication-plugin.html

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

I don't know what to do to get rid of this. I personally want to make a right configuration in the right fil*e instead of just disabling the warning*.

I just configured the "solr.kerberos.name <http://solr.kerberos.name>.rules" in the solr.in.sh <http://solr.in.sh>; but it seems to be ignored.  I don't know if I have to make an extra configuration in the FreeIPA or maybe I am missing another configuration file. As I understand this warning should be if I use HDFS or Hadoop Authentication but this is not the case.

This is the content of my "solr.in.sh"  file:

SOLR_PID_DIR="/opt/var/solr"
SOLR_HOME="/opt/var/solr/data"
LOG4J_PROPS="/opt/var/solr/log4j2.xml"
SOLR_LOGS_DIR="/opt/var/solr/logs"
SOLR_PORT="8983"
SOLR_HEAP="6g"
SOLR_HOST="sa3secglbsolr01.a3sec.local"
ZK_HOST="sa3secglbzkpt01.a3sec.local:2181,sa3secglbzkpt02.a3sec.local:2181,sa3secglbzkpt03.a3sec.local:2181/solr"

# Settings for ZK ACL
SOLR_ZK_CREDS_AND_ACLS="-DzkACLProvider=org.apache.solr.common.cloud.VMParamsAllAndReadonlyDigestZkACLProvider \
  -DzkCredentialsProvider=org.apache.solr.common.cloud.VMParamsSingleSetCredentialsDigestZkCredentialsProvider \
  -DzkDigestUsername=admin-user -DzkDigestPassword=anypassword \
  -DzkDigestReadonlyUsername=readonly-user -DzkDigestReadonlyPassword=anypassword"
SOLR_OPTS="$SOLR_OPTS $SOLR_ZK_CREDS_AND_ACLS"

# Enables HTTPS. It is implicitly true if you set SOLR_SSL_KEY_STORE. Use this config
# to enable https module with custom jetty configuration.
SOLR_SSL_ENABLED=true
# Uncomment to set SSL-related system properties
# Be sure to update the paths to the correct keystore for your environment
SOLR_SSL_KEY_STORE=etc/solr-ssl.keystore.p12
SOLR_SSL_KEY_STORE_PASSWORD=<Anypassword>
SOLR_SSL_TRUST_STORE=etc/solr-ssl.keystore.p12
SOLR_SSL_TRUST_STORE_PASSWORD=<Anypassword>
# Require clients to authenticate
SOLR_SSL_NEED_CLIENT_AUTH=false
# Enable clients to authenticate (but not require)
SOLR_SSL_WANT_CLIENT_AUTH=false
# SSL Certificates contain host/ip "peer name" information that is validated by default. Setting
# this to false can be useful to disable these checks when re-using a certificate on many hosts
SOLR_SSL_CHECK_PEER_NAME=true

KERBEROS_RULE="RULE:[1:\$1@\$0](.*A3SEC.LOCAL)s/@.*//"
SOLR_AUTH_TYPE="kerberos"
SOLR_AUTHENTICATION_OPTS="-Djava.security <http://Djava.security>.auth.login.config=/home/debian/jaas-client.conf -Dsolr.kerberos.cookie.domain=sa3secglbsolr01.a3sec.local -Dsolr.kerberos.cookie.portaware=true -Dsolr.kerberos.principal=HTTP/[e-mail] -Dsolr.kerberos.keytab=/home/debian/sa3secglbsolr01.keytab -Dsolr.kerberos.name <http://Dsolr.kerberos.name>.rules=$KERBEROS_RULE"

 

 

At the moment I just modified the file log4j2.xml with this content:

 

<AsyncLogger name="org.apache.hadoop.security.authentication.util.KerberosName" level="off"/>

 

I could disable the warning but as I said I would like to know another way different to this.

 

Best regards.

Issue Links

• links to: GitHub Pull Request #306