Once you have created your Administration process, you must
create a Storage Node Pool. This pool is used to contain all
the Storage Nodes in your store. A Storage Node pool is used for
resource distribution when creating or modifying a store. You use the
pool create command to create this pool.
Then you join Storage Nodes to the pool using the
pool join command.
You may have multiple kinds of storage nodes in different zones that vary by processor type, speed and/or disk capacity. So the storage node pool lets you define a logical grouping of storage nodes by whatever specification you pick.
Remember that we already have a Storage Node created. We did that when we created the Administration process. Therefore, after we add the pool, we can immediately join that first SN to the pool.
The pool create command only requires you to
provide the name of the pool.
The pool join command requires the name of
the pool to which you want to join the Storage Node, and the
Storage Node's ID. You can obtain the Storage Node's ID using
the show topology command.
For example:
kv-> pool create -name BostonPool kv-> show topology store=mystore numPartitions=0 sequence=2 zn: id=zn1 name=Boston repFactor=3 type=PRIMARY sn=[sn1] zn:[id=zn1 name=Boston] node1:5000 capacity=1 RUNNING kv-> pool join -name BostonPool -sn sn1 Added Storage Node(s) [sn1] to pool BostonPool kv->