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Machine Learning : Article

The Log – So Important It Deserves a Book

A roll your own log management cookbook

I was very interested to see that Manning Publications have just announced the Early Access release of a new book called Unified Log Management. I looked through the table of contents and it was what I expected - a roll your own log management cookbook with a list of technologies that might help (Kinesis, Redshift, Kafka etc.). Presumably it will also include Google DataFlow by the time the book ships. So it's only really for those super-talented all-rounders with a lot of time on their hands or companies with the budget to hire a team of software developers and data scientists. Not really for the very busy DevOps or IT Ops crew with systems to keep available and the need for powerful yet easy to use tools to help them distill the hosepipe of data being generated.

What really peaked my interest was the blog post by the book's author, Alex Dean,  here. It turns out the "Unified" bit in the title was influenced by Jay Kreps article on the log. In my opinion, this is one of those articles that comes around once a generation! I don't think it's overstating the case to say that this captures all the most important lessons about big data, Internet of Things, massively scaled-out services in the cloud, growth hacking etc. It's up there with the 1988 paper that introduced the data warehouse concept and it does capture the future of enterprise architecture in a narrative that is refreshingly philosophical and erudite (at least for a tech blog post).

Enterprise Architecture The core ideas:

  • Capture every event that happens in your business - particularly every customer interaction
  • Store it multiple times because this stuff is gold
  • Pick the right tools to view this data from the perspectives that make sense for your business
  • Need better data - feed more into the log
  • Need a new perspective - add a new tool

The perspectives are visualizations of the output data. The tools are getting more specialized every day... time-series databases for metrics, complex event processing engines for security threats, distributed graph databases for social interactions, search indexing etc. If you know what you are looking for then use real-time pattern matching. If you don't know what you are looking for but want to be told when things start to look different then look for anomalies.

The log, according to Kreps, is at the heart of all these data transformations.

Stream data into the system as fast as your customers can generate it. On the other end you get insights out of the system. And in the middle you painstakingly, hand-craft your log transformation algorithms (with your team of superstar coders and data scientists).

If, on the other hand you have a business to run then why don't you feed data in here,here or here. And then see it transformed into insights like thisthis and this. Or alerts like these and these.

Logentries Webhook Integrations

We are busy working on new perspectives and visualizations. New tools and transformations. New insights and new alerts. The book is not out until Spring 2015 so we'll have a ton more features out before then.

Seeing as we started talking about unified logs - how about this for unified?

More Stories By Trevor Parsons

Trevor Parsons is Chief Scientist and Co-founder of Logentries. Trevor has over 10 years experience in enterprise software and, in particular, has specialized in developing enterprise monitoring and performance tools for distributed systems. He is also a research fellow at the Performance Engineering Lab Research Group and was formerly a Scientist at the IBM Center for Advanced Studies. Trevor holds a PhD from University College Dublin, Ireland.

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