In today’s blog I am going to take a look at a fairly mundane and unspectacular use of a Hive UDF (user-defined function), that of performing lookups against re [...]
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Bisher hat Andrew Kenworthy, 7 Blog Beiträge geschrieben.
One of my favourite essays by Joel Spolsky (he of Stack Overflow fame) is “The law of leaky abstractions”. In it he describes how the prevalence of layers of abstract [...]
In an earlier post in this mini-series I mentioned that the aggregated data we persist in ElasticSearch has discrete retention times: 5 minute aggregation => (rete [...]
ElasticSearch does not offer support for clusters spanning data centres. However, on our project we had access to a network latency of 400 *micro*seconds (0.4 ms) bet [...]
Following from my earlier article on elasticsearch-as-a-database, we will now take a look at the aggregation framework. […]
In an article for Java Magazin way back in 2012 (only a small section of it seems to have survived online(!), although it is still available from the inovex website a [...]