I like Streambase’s announcement regarding their open source repository for
CEP related stuff. And imitation is the sincerest form of flattery, so I
thought I’d follow suit. In my glossary of terms, I deal with RuleBots and
RuleBots are pieces of code that subscribe to streams, do something of
interest, and then put a result back on a stream. We’re releasing RuleBots
with logic pertaining to Regulation NMS surveillance rules in the areas of:
Trade Through, Unusual Activity, NBBO Calculator, Late Trading, Front
Running, Wash Sales, Short Sales, Locked/Crossed, and Marking the Close.
Like the Twitter OnRamp we’ve been using in our Twityourl project, OnRamps
take data from various sources and inject that data into the stream
processing system. We’re releasing OnRamps for both listed and otc quotes
We’ll be publishing the d... (more)
CEP isn’t really about low latency. The ability to do things quickly is
important, just as in any system – especially those systems that grow and
need to handle a lot of information. Doing things quickly means doing
things efficiently. And doing things efficiently means less money spent on
hardware. Theoretically anyway.
SO WHAT IS REALLY COOL ABOUT CEP?
CEP gives one the to submit queries like “select symbol, avg(shares) from
trade_stream group by symbol over 5 minutes emit every 1 minute.” The CEP
engine would consume this query, and then start returning an average of
In the past year or so, I’ve heard from many skeptics – people who
didn’t believe that Event Processing could be successfully deployed in the
cloud. Granted, most of these folks represented firms actively engaged in
providing the High Frequency Trading (Algo Trading) industry with tools.
And in that arena, cloud deployment probably doesn’t make sense. Yet.
Close to Home Though
Ask people in Capital Markets about Twitter and the most common response
you’ll get is, “What do people use it for?” This is because most of
the people in Capital Markets can’t use things like Twitter, i... (more)
Well, it would appear that Michael Stonebraker may have hung up his research
hat and joined the marketing team.
First, read this, “Will the Real Column Stores Please Stand Up?”
And now read my reply, which Vertica has yet to approve on their blog.
Mike, You’re describing an implementation, not an algorithm. An analogy
would be saying that anything that didn’t look like Hadoop wasn’t
map/reduce. Column stores exist because disk is slow – not because
they’re some new and magical way to store data. As a researcher, you’re
well aware of the fact that it is impossible to prove that a... (more)
Every year, I like to decompress a bit and take a break. Usually, I like to
go scuba diving – the dive sites I like are usually far removed from email,
Twitter, Facebook, etc. and it gives me a chance to actually unplug, defrag,
and think a bit.
This year, the family went to Grand Cayman to experience some of the
world’s best diving. Within Grand Cayman is Hell, a small township
dedicated to tourism and aptly named given the attached photo.
We visited Hell in between dives, and rather than make my ex-wife room
reservations or send out postcards, I thought I’d amplify a few predic... (more)