Articles tagged with
hadoop
29 Jun 2017
I bet you have found this article after googling some of the issues you encounter when working with a Hadoop cluster.
You probably deal with Hive queries used for exploratory data analysis that are processed way too long. Moreover, you
cannot adapt Spark in your organization for every use case because of the fact that writing jobs requires quite strong
programming skills. Clogged Yarn queues might be your nightmare and waiting for the launch of the container when you run
even a small query drives you mad. Before we deployed Presto — a Fast SQL engine provided by Facebook — our
analysts struggled with these problems on a regular basis.
24 Jun 2015
At Allegro we use many open-source tools that support our work.
Sometimes we are not able to find what we want and this is
a perfect moment to fill the gap and to
share with the community. We are proud to announce
Camus Compressor — a tool
that merges files created by Camus
on HDFS and saves
them in a compressed format.
10 Jun 2015
In the era of NoSQL, SQL language is becoming extremely popular in Hadoop Ecosystem.
Several query engines are being developed to make SQL queries work better and faster
in an environment that totally differs from traditional relational databases.
17 Dec 2014
Big Data Spain is an annual conference on Big Data and related topics held in the
suburbs of Madrid. This year’s, i.e. third, edition has so far been the biggest; it has attracted more than 500 guests
and various speakers including Big Data celebrities like Paco Nathan of Databricks. During two days of the conference,
guests could attend many keynotes, speeches and workshops and learn about variuos products, services and specific
use-cases, in both English and Spanish. Allegro was represented by two employees with a presentation on Hadoop pitfalls
and gotchas.
05 Nov 2014
This year’s edition of Strata Hadoop World held in New York was humongous, 16
workshops, over 20 keynotes, over 130 talks and most importantly over 5000 attendees! This massive crowd wouldn’t fit in
Hilton hotel where the previous edition was held. That is why organizers had to move the conference to Javits Conference
Center - an enormous building in which Big Data believers occupied just one sector. The fact that the European edition of
Hadoop Summit experienced exactly the same transition (the third edition is going to be held in a bigger location in
Brussels) gives pleasant assurance that Big Data technologies are still a hot topic and that Big Data Community grows
at a stable pace.
