- Data replication:
- Data replication = placing multiple copies of the data on the system
- Modification to
consistent hashing:
- Storage of
a data item with
key key in
replicated data:
- The data item is stored in its hashed range and in the next range
Graphically:
- Storage of
a data item with
key key in
replicated data:
- A replicated
data item can
be read from
multiple storages:
- The data can be
read from the
storage in the
hashed range:
- The read request can be
also be serviced by the
storage in the
next hashed range:
- The data can be
read from the
storage in the
hashed range:
- Advantage:
- Load distribution !!!
- Resuling in higher performance
- Load distribution !!!