Re: [nssldap] nscd and large group problem...

[John R. Hover]

John R. Hover wrote:
> Ulrich Drepper wrote:
>
>> On Thu, 2002-03-21 at 21:24, John R. Hover wrote:
>>
>>> Nscd, (or at least nscd on RedHat) fails upon an 'ls -l' on a
>>> directory with files owned by a group with a large number of users
>>> (in this case 2800),
>>>
>>
>> Try the appended patch.  It should without major problems apply to the
>> 2.2.4 sources you have even though it's from the mainline source tree.
>>
>
> <patch snipped>
>
> Thanks for the attempt, but one hunk failed. I tried against the Redhat
> glibc source and downloaded 2.2.4 from ftp.gnu.org. Same result in each
> case.
>
> Unfortunately, while I know my way around compiling & patch, I don't
> think I know enough to get into manually applying the rejects. If it's
> any consolation, I'm starting a B.Sc. in Compsci next month. :-)
>
> address@hidden glibc-2.2.4]# patch -p0 <../glibc-2.2.4-d-nscd-size.patch
> patching file nscd/grpcache.c
> Hunk #6 FAILED at 277.
> Hunk #7 succeeded at 297 (offset -10 lines).
> 1 out of 7 hunks FAILED -- saving rejects to file nscd/grpcache.c.rej
> patching file nscd/hstcache.c
> patching file nscd/pwdcache.c
> Hunk #6 FAILED at 279.
> Hunk #7 succeeded at 293 (offset -10 lines).
> 1 out of 7 hunks FAILED -- saving rejects to file nscd/pwdcache.c.rej
>
>
> Any ideas?
>
> Cheers,
>
> --john
>

Thanks to a subsequent fix, i.e. a couple files to drop into the glibc 
source, we now have a glibc/nscd-2.2.4 that handles large groups with 
aplomb. This was really important for us since it lets us use 
pam_listfile to restrict logins by group membership in LDAP. Having to 
generate lists of users allowed to login would have been very annoying.

Many thanks for the quick help, Ulrich.

I take it this was indeed a glibc bug, and not anything specific to 
RedHat? Just curious.

Cheers,

--john