<s>
In	O
computing	O
,	O
a	O
Pool	B-Protocol
Registrar	I-Protocol
(	O
PR	O
)	O
is	O
a	O
component	O
of	O
the	O
reliable	B-Protocol
server	I-Protocol
pooling	I-Protocol
(	O
RSerPool	B-Protocol
)	O
framework	B-Architecture
which	O
manages	O
a	O
handlespace	O
.	O
</s>
<s>
PRs	O
are	O
also	O
denoted	O
as	O
ENRP	O
server	O
or	O
Name	B-Protocol
Server	I-Protocol
(	O
NS	O
)	O
.	O
</s>
<s>
Register	O
Pool	B-Protocol
Elements	I-Protocol
into	O
a	O
handlespace	O
,	O
</s>
<s>
Deregister	O
Pool	B-Protocol
Elements	I-Protocol
from	O
a	O
handlespace	O
,	O
</s>
<s>
Monitor	O
Pool	B-Protocol
Elements	I-Protocol
by	O
keep-alive	O
messages	O
,	O
</s>
<s>
server	O
selection	O
)	O
to	O
Pool	B-Protocol
Users	I-Protocol
,	O
</s>
