RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Bug 1295883 - refresh_expired_interval stops sss_cache from working
Summary: refresh_expired_interval stops sss_cache from working
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: sssd
Version: 6.7
Hardware: x86_64
OS: Linux
unspecified
medium
Target Milestone: rc
: ---
Assignee: Michal Zidek
QA Contact: Steeve Goveas
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-01-05 17:14 UTC by ryaner
Modified: 2020-05-02 18:16 UTC (History)
10 users (show)

Fixed In Version: sssd-1.13.3-12.el6
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2016-05-10 20:26:04 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Github SSSD sssd issues 3953 0 None closed refresh_expired_interval stops sss_cache from working 2020-07-16 11:04:09 UTC
Red Hat Product Errata RHBA-2016:0782 0 normal SHIPPED_LIVE sssd bug fix and enhancement update 2016-05-10 22:36:00 UTC

Description ryaner 2016-01-05 17:14:22 UTC 
Description of problem:
Enabling 'refresh_expired_interval' in the domain/LDAP section stops calls to sss_cache from expiring data.

Version-Release number of selected component (if applicable):
sssd-1.12.4-47.el6_7.4.x86_64

How reproducible:
Everytime

Steps to Reproduce:
1. Setup sssd.conf against an ldap server. 
2. Add 'refresh_expired_interval = 1234' to the [domain/LDAP] section
3. Query a netgroup 
# getent netgroup testgroup
testgroup ( ,user1,) ( ,user2,) ( ,user3,)
4. Modify the group external to remove user3
5. Call sss_cache to expire the group
# sss_cache -n testgroup
6. Verify netgroup
# getent netgroup testgroup
testgroup ( ,user1,) ( ,user2,) ( ,user3,)

For this step I'm also watching the sssd_LDAP.log with debug=9. Following is the output during steps 4/5

(Tue Jan  5 16:59:38 2016) [sssd[be[LDAP]]] [sbus_dispatch] (0x4000): dbus conn: 0x1477920
(Tue Jan  5 16:59:38 2016) [sssd[be[LDAP]]] [sbus_dispatch] (0x4000): Dispatching.
(Tue Jan  5 16:59:38 2016) [sssd[be[LDAP]]] [sbus_message_handler] (0x4000): Received SBUS method [rotateLogs]
(Tue Jan  5 16:59:38 2016) [sssd[be[LDAP]]] [sbus_get_sender_id_send] (0x2000): Not a sysbus message, quit
(Tue Jan  5 16:59:38 2016) [sssd[be[LDAP]]] [sbus_handler_got_caller_id] (0x4000): Received SBUS method [rotateLogs]
(Tue Jan  5 16:59:39 2016) [sssd[be[LDAP]]] [sbus_dispatch] (0x4000): dbus conn: 0x1477920
(Tue Jan  5 16:59:39 2016) [sssd[be[LDAP]]] [sbus_dispatch] (0x4000): Dispatching.
(Tue Jan  5 16:59:39 2016) [sssd[be[LDAP]]] [sbus_message_handler] (0x4000): Received SBUS method [ping]
(Tue Jan  5 16:59:39 2016) [sssd[be[LDAP]]] [sbus_get_sender_id_send] (0x2000): Not a sysbus message, quit
(Tue Jan  5 16:59:39 2016) [sssd[be[LDAP]]] [sbus_handler_got_caller_id] (0x4000): Received SBUS method [ping]

Without 'refresh_expired_interval' set you can see if going off to the ldap server and re-caching results on the getent query and it returns the results correctly. 

The changelog for 1.12.5 does list some enhancements for 'refresh_expired_interval' so perhaps it is fixed there, but I don't have a Fedora system to test on.
Comment 2 Pavel Březina 2016-01-06 09:36:49 UTC 
We disable cache refresh for netgroups in commit f933190722886ff23eab8148b473915908bc8c23 if background refresh is enabled. The patch should disable only a midpoint refresh, but it seems that even refresh of expired records are disabled this way.
Comment 3 Pavel Březina 2016-01-06 09:40:00 UTC 
Upstream ticket:
https://fedorahosted.org/sssd/ticket/2912
Comment 4 Jakub Hrozek 2016-01-20 18:40:27 UTC 
Michal, Pavel, can either of you provide steps to reproduce this bug?
Comment 5 Michal Zidek 2016-01-21 14:27:24 UTC 
Steps to reproduce:

1. Setup SSSD against LDAP or FreeIPA server with the following option in the domain section in sssd.conf:
refresh_expired_interval = 1234

3. Create a test netgroup with some users on the server

3. Query the created test netgroup
# getent netgroup testgroup
testgroup ( ,user1,) ( ,user2,) ( ,user3,)

4. Modify the test netgroup to remove one user

5. Call sss_cache to expire the group
# sss_cache -n testgroup

6. Query server for test netgroup again. Removed user should no longer be shown in the getent output.
# getent netgroup testgroup
testgroup ( ,user1,) ( ,user2,) ( ,user3,)
Comment 8 Lukas Slebodnik 2016-01-21 15:15:12 UTC 
master:
* 1b8858b1611db5048592f477059ca5ad66d7ceb1

sssd-1-13:
* 66c6bf86da1241c3253d23aa7e68850d6ec14d15
Comment 10 Amith 2016-03-17 07:29:15 UTC 
Verified the bug on SSSD Version: sssd-1.13.3-21.el6.x86_64

Steps followed during verification were taken from Comment #5.
1. Create a netgroup in ldap server.
2. Configure sssd with "refresh_expired_interval = 1234" and query the netgroup.
3. Then, delete a netgroup user, clean the cache and query again to verify the presence of deleted user.

With the latest build, the bug looks resolved. See the commands below:

# service sssd status
sssd (pid  25553) is running...

# getent netgroup test-net
test-net              ( ,user1,) ( ,user2,) ( ,user3,)

# ldapmodify -xv -h hubcap.lab.eng.pnq.redhat.com -D "cn=Directory Manager" -w Secret123 -f netgroup-member-del.ldif 
ldap_initialize( ldap://hubcap.lab.eng.pnq.redhat.com )
delete nisNetgroupTriple:
	(,user3,)
modifying entry "cn=test-net,ou=Netgroup,dc=example,dc=com "
modify complete

[root@qe-blade-03 sssd]# sss_cache -n test-net

[root@qe-blade-03 sssd]# getent netgroup test-net
test-net              ( ,user1,) ( ,user2,)
Comment 12 errata-xmlrpc 2016-05-10 20:26:04 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://rhn.redhat.com/errata/RHBA-2016-0782.html
Note You need to log in before you can comment on or make changes to this bug.