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Bug 1766962 - ldap_uri failover doesn't work with different ports
Summary: ldap_uri failover doesn't work with different ports
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: sssd
Version: 8.1
Hardware: Unspecified
OS: Unspecified
unspecified
high
Target Milestone: rc
: 8.0
Assignee: Pavel Březina
QA Contact: sssd-qe
URL:
Whiteboard: sync-to-jira
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-10-30 11:31 UTC by Amith
Modified: 2023-04-29 09:51 UTC (History)
8 users (show)

Fixed In Version: sssd-2.2.3-2.el8
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-04-28 16:56:29 UTC
Type: Bug
Target Upstream Version:
Embargoed:
pm-rhel: mirror+

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Github SSSD sssd issues 5073 0 None closed ldap_uri failover doesn't work with different ports 2020-06-09 20:16:07 UTC
Red Hat Issue Tracker RHELPLAN-34433 0 None None None 2023-04-29 09:51:03 UTC
Red Hat Issue Tracker SSSD-1979 0 None None None 2023-04-29 09:51:43 UTC
Red Hat Product Errata RHBA-2020:1863 0 None None None 2020-04-28 16:56:40 UTC

Description Amith 2019-10-30 11:31:43 UTC 
Description of problem:
We have multiple testcase failures related to failover wherein the list of URI's have different port numbers. These cases worked in RHEL-8.0.0. Following are the cases:
1. ldap uri failover with single server different ports
2. ldap chpass uri failover with single server different ports
3. ldap chpass backup uri failover with single server different ports

Version-Release number of selected component (if applicable):
sssd-2.2.0-19.el8

How reproducible:
Always.

Steps to Reproduce:
1. Setup SSSD with any one of the following domain section:

    [domain/LDAP]
    debug_level=0xFFF0
    id_provider = ldap
    ldap_uri = ldap://$SERVER1:12345,ldap://$SERVER1:389
    ldap_tls_cacertdir = /etc/openldap/certs
    ldap_search_base = dc=example,dc=com

OR

    [domain/LDAP]
    debug_level=0xFFF0
    id_provider = ldap
    auth_provider = ldap
    chpass_provider = ldap
    ldap_uri = ldap://$SERVER1
    ldap_chpass_uri = ldap://$SERVER1:12345,ldap://$SERVER1:389
    ldap_tls_cacertdir = /etc/openldap/certs
    ldap_search_base = dc=example,dc=com

OR

    [domain/LDAP]
    debug_level=0xFFF0
    id_provider = ldap
    auth_provider = ldap
    chpass_provider = ldap
    ldap_uri = ldap://$SERVER1
    ldap_chpass_uri = ldap://$SERVER1:12345
    ldap_chpass_backup_uri = ldap://$SERVER1:389
    ldap_tls_cacertdir = /etc/openldap/certs
    ldap_search_base = dc=example,dc=com

2. In the above cases, port 12345 is non-existent in order to allow SSSD to failover to next uri or backup uri. Now restart SSSD service.

3. Run a user login. You will see that user auth fails. SSSD log shows "PORT NOT WORKING" error.

Additional info:
A similar bug related to krb5_kpasswd exists (https://bugzilla.redhat.com/show_bug.cgi?id=880546). This bug was fixed and is part of our automation. Strangely, all the krb cases related to "Single server different port" works.
Comment 1 Pavel Březina 2019-11-05 13:11:32 UTC 
Upstream ticket:
https://pagure.io/SSSD/sssd/issue/4112
Comment 2 Pavel Březina 2019-11-05 13:16:06 UTC 
Upstream PR:
https://github.com/SSSD/sssd/pull/929
Comment 3 Pavel Březina 2019-11-07 12:16:06 UTC 
* `master`
    * 08f0159078aa00d04533ca227679e25d64c452e1 - failover: make sure we switch to anoter server if only port differs
Comment 4 Michal Zidek 2020-01-15 12:08:48 UTC 
This bug was fixed as part of the rebase we did in RHEL 8.2.0. It would be good to fully ack it and include in the erratum.
Comment 6 Amith 2020-02-26 04:57:11 UTC 
Verified the bug on SSSD version: sssd-2.2.3-16.el8.x86_64

This bug was part of regression run failure hence following beaker job should cover the verification:

https://beaker.engineering.redhat.com/jobs/4090538
Comment 8 errata-xmlrpc 2020-04-28 16:56:29 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:1863
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