We're getting the error message below when a user attempted to execute a stored procedure. I located the stored procedure and dropped and recreated it and it worked fine. The DBA that created the stored procedure has since left the company and his unix account removed from the DBA unix group. What criteria does db2 use to determine when it checks the OS group. For instance the stored procedure definer, binder ... etc? Will I have the same problem for the NULLID packages once the binder of these packages is removed from the UNIX DBA group? What other objects do I need to be aware of?

DM13001E Plug-in "IBMOSgroups" received error code "-1" from the DB2 security
plug-in API "db2secGetGroupsForUser" with the error message " ".

DB21085I Instance "db2inst1" uses "64" bits and DB2 code release "SQL08022"
with level identifier "03030106".
Informational tokens are "DB2 v8.1.0.89", "special_15295", "U800790_15295", and
FixPak "9".
Product is installed at "/opt/IBM/db2/V8.1".

Solaris 8