Bug 1020905
| Summary: | Creating system accounts on a IdM client takes up to 10 minutes when AD trust is configured in the IdM. | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | pgustafs |
| Component: | sssd | Assignee: | Jakub Hrozek <jhrozek> |
| Status: | CLOSED ERRATA | QA Contact: | Kaushik Banerjee <kbanerje> |
| Severity: | urgent | Docs Contact: | |
| Priority: | urgent | ||
| Version: | 6.4 | CC: | ekeck, grajaiya, jgalipea, jkurik, lslebodn, mkosek, nsoman, pbrezina, sgadekar, sgoveas |
| Target Milestone: | rc | Keywords: | Reopened, ZStream |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | sssd-1.9.2-130.el6 | Doc Type: | Bug Fix |
| Doc Text: |
Cause: The sss_useradd and sss_groupadd tools scan the ID space for system accounts as configured by /etc/login.defs rather aggresivelly, looking for an unused ID. At the same time, the subdomain code didn't honor the min_id/max_id settings, so even setting a high min_id didn't help.
Consequence: Adding a system account using the sss_useradd or sss_groupadd tools took very long time as sssd was being hammered with getpwuid()/getgrgid() requests.
Fix: The subdomain code was fixed to honor the min_id/max_id configuration options.
Result: If the sssd is properly configure with min_id options, scanning the ID space is rather fast. At the same time, future versions of shadow-utils will scan the ID space more efieciently.
|
Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-10-14 04:46:55 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 1028046 | ||
|
Description
pgustafs
2013-10-18 13:35:12 UTC
Upstream ticket: https://fedorahosted.org/sssd/ticket/2123 To reproduce: On a system that is a client of IPA server that trusts an AD, run: groupadd -r testgroup The -r is important as it causes the groupadd to call getgrgid for all GIDs below 1000. The bug in sssd is that we don't inherit parent domain's min_id/max_id if set. Fixed upstream:
master: e4a731167c210a6e57e68f451361f270337b1eed
sssd-1-11: 8a5b0728ed6ed5deb6ad53cd4ccb23121babfd0c
This issue only affects IPA clients in a trust setup. On the client, set min_id = 1001. Run "useradd -r username" or "groupadd -r groupname". With unpatched client, the useradd or groupadd command will take a long time as useradd/groupadd will hammer SSSD, scanning the ID space for a free ID between 1 and 1000. The patched packages should honor min_id even for subdomains and running useradd/groupadd should be fast. * On IPA server
[root@hp-ms-01-c21 ~]# ipa host-find hp-ms-01-c11 --pkey-only
--------------
1 host matched
--------------
Host name: hp-ms-01-c11.testrelm.test
----------------------------
Number of entries returned 1
----------------------------
[root@hp-ms-01-c21 ~]# ipa trust-find
---------------
1 trust matched
---------------
Realm name: adtest.qe
Domain NetBIOS name: ADTEST
Domain Security Identifier: S-1-5-21-1910160501-511572375-3625658879
SID blacklist incoming: S-1-0, S-1-1, S-1-2, S-1-3, S-1-5-1, S-1-5-2, S-1-5-3, S-1-5-4, S-1-5-5, S-1-5-6, S-1-5-7, S-1-5-8, S-1-5-9, S-1-5-10,
S-1-5-11, S-1-5-12, S-1-5-13, S-1-5-14, S-1-5-15, S-1-5-16, S-1-5-17, S-1-5-18, S-1-5-19, S-1-5-20
SID blacklist outgoing: S-1-0, S-1-1, S-1-2, S-1-3, S-1-5-1, S-1-5-2, S-1-5-3, S-1-5-4, S-1-5-5, S-1-5-6, S-1-5-7, S-1-5-8, S-1-5-9, S-1-5-10,
S-1-5-11, S-1-5-12, S-1-5-13, S-1-5-14, S-1-5-15, S-1-5-16, S-1-5-17, S-1-5-18, S-1-5-19, S-1-5-20
Trust type: Active Directory domain
----------------------------
Number of entries returned 1
----------------------------
[root@hp-ms-01-c21 ~]# getent passwd aduser1
aduser1:*:1148401313:1148401313:ads user:/home/adtest.qe/aduser1:
* On IPA Client
[root@hp-ms-01-c11 ~]# hostname
hp-ms-01-c11.testrelm.test
[root@hp-ms-01-c11 ~]# getent passwd aduser1
aduser1:*:1148401313:1148401313::/home/adtest.qe/aduser1:
[root@hp-ms-01-c11 ~]# time useradd -r sysuser2; time groupadd -r sysgrp2
real 0m10.926s
user 0m0.095s
sys 0m0.307s
real 0m3.856s
user 0m0.073s
sys 0m0.164s
* Verified in version
[root@hp-ms-01-c11 ~]# rpm -q sssd sssd-client
sssd-1.11.6-12.el6.x86_64
sssd-client-1.11.6-12.el6.x86_64
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. http://rhn.redhat.com/errata/RHBA-2014-1375.html |