TY - GEN
T1 - Morphus
T2 - 12th IEEE International Conference on Autonomic Computing, ICAC 2015
AU - Ghosh, Mainak
AU - Wang, Wenting
AU - Holla, Gopalakrishna
AU - Gupta, Indranil
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/9/14
Y1 - 2015/9/14
N2 - While sharded NoSQL stores offer high availability, reconfiguration operations present a major pain point in deployments today. For instance, in order to change a configuration setting such as the shard (or primary) key of a database table, the prevalent solutions entail shutting down the database, exporting and re-importing the table, and restarting the database. This goes against the NoSQL philosophy of high availability of data. Our system, called Morph us, provides support towards reconfigurations for NoSQL stores in an online manner. Morphus allows read and write operations to continue concurrently with the data transfer among servers. Morphus works for NoSQL stores that feature master-slave replication, range partitioning, and flexible data placement. This paper presents: i) a systems architecture for online reconfigurations, incorporated into Mongo DB, and ii) optimal algorithms for online reconfigurations. Our evaluation using realistic workloads shows that Morphus completes reconfiguration efficiently, offers high availability, and incurs low overhead for reads and writes.
AB - While sharded NoSQL stores offer high availability, reconfiguration operations present a major pain point in deployments today. For instance, in order to change a configuration setting such as the shard (or primary) key of a database table, the prevalent solutions entail shutting down the database, exporting and re-importing the table, and restarting the database. This goes against the NoSQL philosophy of high availability of data. Our system, called Morph us, provides support towards reconfigurations for NoSQL stores in an online manner. Morphus allows read and write operations to continue concurrently with the data transfer among servers. Morphus works for NoSQL stores that feature master-slave replication, range partitioning, and flexible data placement. This paper presents: i) a systems architecture for online reconfigurations, incorporated into Mongo DB, and ii) optimal algorithms for online reconfigurations. Our evaluation using realistic workloads shows that Morphus completes reconfiguration efficiently, offers high availability, and incurs low overhead for reads and writes.
KW - Nosql
KW - Reconfiguration
KW - Shard key change
UR - http://www.scopus.com/inward/record.url?scp=84961848460&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84961848460&partnerID=8YFLogxK
U2 - 10.1109/ICAC.2015.42
DO - 10.1109/ICAC.2015.42
M3 - Conference contribution
AN - SCOPUS:84961848460
T3 - Proceedings - IEEE International Conference on Autonomic Computing, ICAC 2015
SP - 1
EP - 10
BT - Proceedings - IEEE International Conference on Autonomic Computing, ICAC 2015
A2 - Lalanda, Philippe
A2 - Kounev, Samuel
A2 - Diaconescu, Ada
A2 - Cherkasova, Lucy
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 7 July 2015 through 10 July 2015
ER -