Python NGROUPS_MAX staying at 16 for Solaris

Question

I am trying to increase the amount of groups Python allows for its processes. I have applied Solaris' 144501 patch to the operating system for it to allow more users, and after running getconf NGROUPS_MAX it returns 1024.

Unfortunately, Python is still using the Solaris default os.NGROUPS_MAX value of 16.

I've tried compiling Python myself, and the value continues to be 16. I even tried to hard code a 1024 in the source but it remains 16 after that as well.

Does anyone know how to get Python to recognize the new group limit?

maybe you can compile it with alternative '-D-DNGROUPS_MAX=X' — thkang, Mar 14 '13 at 16:46
Nope, still complains that there are too many groups when using `os.setgroups()` — , Mar 14 '13 at 16:46

score 1 · Accepted Answer · 2013-03-15T13:48:00.673

1

While the setting was changed in the operating system, a header file still contained 16. In /usr/include/limits.h:

#define NGROUPS_MAX 16  /* max number of groups for a user */

Change that to 1024 (assuming you did the patch and getconf NGROUPS_MAX is 1024), everything compiles correctly after that.

edited Mar 15 '13 at 13:48

answered Mar 14 '13 at 21:08

Python NGROUPS_MAX staying at 16 for Solaris

1 Answers1