On Thu, Nov 6, 2025 at 10:29 PM Prentice Bisbal <[email protected]> wrote:

> On 11/6/25 5:01 AM, Alexey Tikhonov wrote:
>
>
>
> On Wed, Nov 5, 2025 at 3:53 PM Prentice Bisbal via sssd-users <
> [email protected]> wrote:
>
>> Yesterday we upgrade some of our systems to OpenSuSE 15.6. We have sssd
>> configured to to enumate, but when I do 'getent passwd, I get only the
>> contents of /etc/passwd, a hang for 3-5 seconds, and then the command ends
>> w/o any of our user information from LDAP. using strace, I see getent is
>> failing with this error:
>>
>> connect(3, {sa_family=AF_UNIX, sun_path="/var/lib/sss/pipes/nss"}, 110) =
>> -1 ECONNREFUSED (Connection refused)
>> Even with logging turned all the way up, the only message I see in the
>> logs is this:
>>
>> (2025-11-04 16:51:16): [sssd] [svc_child_info] (0x0020): Child [71156]
>> ('nss':'nss') was terminated by own WATCHDOG
>>
>
> Look into 'sssd_nss.log'  --  what does it hang on - last message before
> "2025-11-04 16:51:16"
> But if your directory is big then an attempt to make enumeration work is
> desperate.
>
>
> Yes, this work may be desperate, especially since future versions of SSSD
> won't support enumeration at all,
>

Enumeration support was removed for AD and IPA providers, but technically
it stays for LDAP (and PROXY).
But kind of "use it if it works for you".



> and we recognize this may not be worth debugging any further, but
> curiosity has got the better of me.
>
> From that particular event, all I see is this:
>
> (2025-11-04 16:51:16): [nss] [server_setup] (0x3f7c0): Starting with debug
> level = 0x0070
>
> Which is consistent with what I think it is happening. The sssd_nss is
> crashing, and then restarting, and at the active log level at the time, all
> it shows is the daemon restarting after crashing. Debug_level=9 produces a
> lot to sift through, so I have it at 7 right now. It still crashes with and
> the produces a line like above about starting, but these are the 3 lines
> right before that happens:
>
> (2025-11-06 14:15:16): [nss] [cache_req_search_cache] (0x0400): [CID#19]
> CR #140: Looking up [Users enumeration] in cache
> (2025-11-06 14:15:16): [nss] [sysdb_enumpwent_filter] (0x1000): [CID#19]
> Searching timestamp cache with [(objectCategory=user)]
> (2025-11-06 14:15:16): [nss] [sysdb_enumpwent_filter] (0x1000): [CID#19]
> Searching timestamp entries with [(|(dn=name=USERNAME@ldap
> ,cn=users,cn=LDAP,cn=sysdb)...
>
> That last line is a really, really, really long line that appears to
> include every username in our directory. I'm mainly pursuing this because
> this didn't happen with our earlier version of sssd (OpenSuSE 15.4), so I'm
> wondering/curious if this is a problem with the our directory size, a "new
> feature" in sssd 2.9.3, or a bug.
>

Most probably https://github.com/SSSD/sssd/issues/6951 that needs to be
fixed.



>
> Prentice
>
-- 
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