Features for Better Sharding Performance
eXtremeDB utilizes distributed query processing to offer scalable data management and ultra low latency.
eXtremeDB offers ultra fast, elastically scalable data management.
With this feature, databases are partitioned (“sharded”), with each partition/shard managed by an instance of the DBMS server. Shards are typically distributed on a storage array (which may be a SAN) – with each server keeping a CPU core busy – or distributed across different physical servers with their own storage systems.
Distributed query processing across multiple servers, CPUs and/or CPU cores accelerates performance. The difference can be dramatic in some cases, with parallel execution of database operations and by harnessing the combined processing power, memory and I/O bandwidth of many nodes rather than just one.
eXtremeDB offers three important features for better sharding performance.
1) Each shard can have one or more backup (replica) copies, which in addition to delivering high availability via failover, can also share the query processing load.
2) The developer can easily specify the storage (in-memory or persistent) for each table, which is ideal for handling streaming and historical data within a single database architecture. Or, all tables can be in memory, or all persistent.
eXtremeDB offers hybrid storage built on an in-memory database management system. The resulting database system retains in-memory strengths (speed, small database footprint, intuitive native API, etc.), yet leverages the potential cost savings and increased durability of an on-disk database. Learn why this matters.
3) A flexible data layout means database designs can combine row-based and column-based layouts, in order to best leverage the CPU cache speed.
Scalable distributed database contrast and compare
eXtremeDB offers different distributed database options to address different objectives. This table summarizes primary purpose and characteristics of each option (some of which may be combined, e.g. Sharding, Cluster and High Availability).