l_getidentity(1)

NAME
l_getidentity - Handle Lustre user/group cache upcall

SYNOPSIS
l_getidentity {-d | mdtname} uid

DESCRIPTION
The identity upcall command specifies the path to an executable that, when properly installed, is invoked to resolve the numeric uid to a group membership list.

l_getidentity is the reference implementation of the user/group cache upcall. This command is normally run directly by the Lustre MDS service and specifies the mdtname argument for the MDT that should be updated.

OPTIONS

-d  Run in debug mode and print supplementary groups information for uid to stdout instead of updating Lustre.

EXAMPLES
The identity upcall command can be specified via:
lctl set_param mdt.mdtname.identity_upcall=path_to_upcall

FILES
/{proc,sys}/fs/lustre/mdt/mdt-service/identity_upcall

SEE ALSO
Lustre Programming Interfaces section of Lustre Operations Manual.