MapReduce, Bigtable and Pregel have their origins in Google and they all deal with “large systems”. But all of them may be dwarfed in size and complexity by a new project Google is working on, which was mentioned briefly (may be un-intentionally) at an event last year. Instead of caching data closer to user, it [...]
Read the rest of this entry »So there is someone who thinks “eventual consistency is just caching”. Though I liked the idea of discussing this, I don’t agree with Udi’s views on this. “Cache” is generally used to store data which is more expensive to obtain from the primary location. For example, caching mysql queries is ideal for queries which could [...]
Read the rest of this entry »Cassandra is the only NOSQL datastore I’m aware of, which is scalable, distributed, self replicating, eventually consistent, schema-less key-value store running on java which doesn’t have a single point of failure. HBase could also match most of these requirements, but Cassandra is easier to manage due to its tiny footprint. The one thing Cassandra doesn’t [...]
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