Cassandra vs MongoDB vs CouchDB vs Redis vs Riak vs HBase comparison :: Software architect Kristof Kovacs
Hello, I’m Kristof, a human being like you, and an easy to work with, friendly guy. I've been a programmer, a consultant, CIO in startups, head of software development in government, and built two software companies. Some days I’m coding Golang in the guts of a system and other days I'm wearing a suit to help clients with their DevOps practices. While SQL databases are insanely useful tools, their
Re: Facebook messaging and choice of HBase over Cassandra - what can we learn?
On Sun, Nov 21, 2010 at 2:06 PM, Edward Ribeiro <edward.ribe...@gmail.com>wrote:> > Also I believe saying HBASE is consistent is not true. This can happen: >> Write to region server. -> Region Server acknowledges client-> write >> to WAL -> region server fails = write lost >> >> I wonder how facebook will reconcile that. :) >> > > Are you sure about that? Client writes to WAL before ack user? > >
Facebook's New Real-time Messaging System: HBase to Store 135+ Billion Messages a Month - High Scalability -
You may have read somewhere that Facebook has introduced a new Social Inbox integrating email, IM, SMS, text messages, on-site Facebook messages. All-in-all they need to store over 135 billion messages a month. Where do they store all that stuff? Facebook's Kannan Muthukkaruppan gives the surprise answer in The Underlying Technology of Messages: HBase. HBase beat out MySQL, Cassandra, and a few o
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