Tag: Cassandra

Cassandra and Sharded MySQL

Stefan Piesche, Constant Contact CTO, spoke at the Data @Scale conference in Boston, hosted by Facebook. He discussed how Constant Contact moved from scaling data vertically in large DB2 databases attached to even larger SANs, to using Cassandra as a horizontally scalable data tier for key/value type data. CTCT used to scale data vertically in large DB2 […]

Cassandra and Backups

Cassandra is a peer-to-peer, fault-tolerant system. Data is replicated among multiple nodes across multiple data centers. Single or even multi-node failures can be recovered from surviving nodes with the data. Restores from backups are unnecessary in the event of disk or system hardware failure even if an entire site goes off-line.  As long as there […]