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Class-Based Eviction Strategy: Going Beyond LRU

Consider you are building a financial back-office trade processing application. Trades are flowing in from the front-office system. To cope with the velocity and volume of the trades you want to use in-memory processing. The trades are usually settled no later than 24 hours from trade execution. These trades objects can get very active during

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The Elephant in the Cloud — Putting Hadoop on any Cloud

In one of my earlier posts I discussed in general terms why it makes a lot of sense to put Big Data on the cloud. The first step that we took in this regard with Cloudify was to make NoSQL…

 
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Lessons from the Heroku/Amazon Outage

Earlier this week we experienced the third significant AWS outage in the past 14 months, as reported by Justin Lee in his report Heroku, Pinterest Among Sites Knocked Offline in Amazon Data Center Outage on theWhirr magazine: An Amazon data…

 
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XAP 9.5 is Out!
And it's geared for real-time big data stream processing. No more batch mode! Analyze your events - as they come in.

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