[LU-18936] Project Quota 0 not mapping

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.17.0
• Severity: 3
• Assignee: Sergey Cheremencev
• Reporter: Sergey Cheremencev

Description

Project quota is not mapping correctly for tenants

 nodemap.c1.admin_nodemap=1
nodemap.c1.audit_mode=1
nodemap.c1.deny_unknown=1
nodemap.c1.exports=
[
 { nid: 10.73.20.2@tcp, uuid: 69459cf9-38cb-43de-b160-06f03dbd7a43 }
]
nodemap.c1.fileset=/tenants/c1
nodemap.c1.forbid_encryption=0
nodemap.c1.id=4
nodemap.c1.idmap=[]
nodemap.c1.map_mode=projid
nodemap.c1.offset=
{
 start_uid: 100000,
 limit_uid: 100000,
 start_gid: 100000,
 limit_gid: 100000,
 start_projid: 100000,
 limit_projid: 100000
}
nodemap.c1.ranges=
[
 { id: 66, start_nid: 10.73.20.2@tcp, end_nid: 10.73.20.2@tcp }
]
nodemap.c1.rbac=file_perms,server_upcall,local_admin
nodemap.c1.readonly_mount=0
nodemap.c1.sepol=
nodemap.c1.squash_gid=65534
nodemap.c1.squash_projid=0
nodemap.c1.squash_uid=65534
nodemap.c1.trusted_nodemap=0 

Client Quota view:

[root@client1 client]# lfs quota -p 0 /lustre/fs/client/
Disk quotas for prj 0 (pid 0):
     Filesystem  kbytes   quota   limit   grace   files   quota   limit   grace
/lustre/fs/client/
                 102408       0       0       -       3       0       0       -
[root@client1 client]# lfs quota -p 1 /lustre/fs/client/
Disk quotas for prj 1 (pid 1):
     Filesystem  kbytes   quota   limit   grace   files   quota   limit   grace
/lustre/fs/client/
                 102408       0 1073741824       -       3       0       0       - 

The tenant project quota SHOULD be querable as ID 0, but it's getting the global filesystem project ID 0 and not it's own project ID.  But if it asks for any other ID, it get's squashed to "0" which is then translated to 100000.