[Samba] Excessive allocations from RID master

[Kristofer]

I have a script that is adding about 16,000 users to my domain.

While monitoring the script, I noticed that as soon as a user is added, 500 additional RID's are allocated from the RID Master

Please see below the output of the "CN=RID Manager$,CN=System" and "CN=RID Set,CN=DC1,OU=Domain Controllers" containers between each user-add

As you can see, in "CN=RID Set,CN=DC1,OU=Domain Controllers" rIDNextRID increments by one between each user, but there is a new rIDAllocationPool each time.  And to match that, inside of the "CN=RID Manager$,CN=System" container the rIDAvailablePool gets depleted by 500 between each new user.

Is this normal behavior, or a bug?  I thought the DC only requests 500 additional RID's when it was close to being depleted - not on each object addition.


== Thu Jul 11 20:45:59 EDT 2013 =====================
dn: CN=RID Manager$,CN=System,DC=ad,DC=domain,DC=com
rIDAvailablePool: 4837600-1073741823

dn: CN=RID Set,CN=DC1,OU=Domain Controllers,DC=ad,DC=domain,DC=com
rIDPreviousAllocationPool: 4760100-4760599
rIDUsedPool: 38
rIDAllocationPool: 4837100-4837599
rIDNextRID: 4760494

== Thu Jul 11 20:46:10 EDT 2013 =====================
dn: CN=RID Manager$,CN=System,DC=ad,DC=domain,DC=com
rIDAvailablePool: 4838100-1073741823

dn: CN=RID Set,CN=DC1,OU=Domain Controllers,DC=ad,DC=domain,DC=com
rIDPreviousAllocationPool: 4760100-4760599
rIDUsedPool: 38
rIDAllocationPool: 4837600-4838099
rIDNextRID: 4760495

== Thu Jul 11 20:46:21 EDT 2013 =====================
dn: CN=RID Manager$,CN=System,DC=ad,DC=domain,DC=com
rIDAvailablePool: 4838600-1073741823

dn: CN=RID Set,CN=DC1,OU=Domain Controllers,DC=ad,DC=domain,DC=com
rIDPreviousAllocationPool: 4760100-4760599
rIDUsedPool: 38
rIDAllocationPool: 4838100-4838599
rIDNextRID: 4760496

== Thu Jul 11 20:46:32 EDT 2013 =====================
dn: CN=RID Manager$,CN=System,DC=ad,DC=domain,DC=com
rIDAvailablePool: 4839100-1073741823

dn: CN=RID Set,CN=DC1,OU=Domain Controllers,DC=ad,DC=domain,DC=com
rIDPreviousAllocationPool: 4760100-4760599
rIDUsedPool: 38
rIDAllocationPool: 4838600-4839099
rIDNextRID: 4760497

== Thu Jul 11 20:46:44 EDT 2013 =====================
dn: CN=RID Manager$,CN=System,DC=ad,DC=domain,DC=com
rIDAvailablePool: 4839600-1073741823

dn: CN=RID Set,CN=DC1,OU=Domain Controllers,DC=ad,DC=domain,DC=com
rIDPreviousAllocationPool: 4760100-4760599
rIDUsedPool: 38
rIDAllocationPool: 4839100-4839599
rIDNextRID: 4760498

== Thu Jul 11 20:46:55 EDT 2013 =====================
dn: CN=RID Manager$,CN=System,DC=ad,DC=domain,DC=com
rIDAvailablePool: 4840100-1073741823

dn: CN=RID Set,CN=DC1,OU=Domain Controllers,DC=ad,DC=domain,DC=com
rIDPreviousAllocationPool: 4760100-4760599
rIDUsedPool: 38
rIDAllocationPool: 4839600-4840099
rIDNextRID: 4760499