[GE users] Group membership limit?

craffi dag at sonsorol.org
Wed Sep 30 17:27:47 BST 2009

I just confirmed for myself that this problem exists on Mac OS X  
Server  / Snow Leopard. I was using an older version of SGE 6.1u4  
though due to the fact that it's a test server for a heavily regulated/ 
audited system.

The problem was that OS X by default added me to a ton of groups, this  
was my original 'groups' output:

uid=508(chris) gid=20(staff) groups=20(staff),

After pairing down my group memberships to:

  uid=508(chris) gid=20(staff) groups=20(staff),

... I was able to run jobs again.

As a side note I found that it was 100% necessary to write launchd  
scripts for SGE and Snow Leopard OS X - both the SystemStarter() and  
the init scripts in $SGE_ROOT/$SGE_CELL/common/ are no longer reliable  
or stable on the latest versions of Mac OS X.


On Sep 14, 2009, at 5:35 AM, udowaechter wrote:

> Hi, I wrote the mail below to the mailing list, beliveing that this
> problem might occur only under snow-leopard. Now I think that this  
> might
> be a general OS-unrelated question.
> Is there a limit to the number of groups a user can be a member of?
> As I describe below, in Snow Leopard the user root is member of 19
> groups and GE fails to run jobs as that user.
> Thanks for any help,
> udo.
> On 09/10/2009 11:12 AM, udowaechter wrote:
>> Hello all,
>> I have recently installed Snow Leopard on one of our exec hosts.
>> there is a problem when users with many unix-groups are executing  
>> jobs.
>> The jobs fail and set the queue in E state. The message is:
>> job N failed on host XY general before job because: 09/10/2009  
>> 10:28:46
>> [0:65820]: can't set additional group id (uid=0, euid=0): the user
>> already has too many group ids
>> What is the limit of groups-memberships in SGE 6.2u3. And why is it
>> there? Can I reconfigure it, such that this error does not happen?
>> Thanks,
>> udo.
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