The stack being deployed in the following demo is from Apache Bigtop 1.0 RC (Hadoop 2.6, Ignite 1.0, etc.) Enjoy
Is Amazon such an awful workplace?
1 week ago
Date: Fri, Apr 10, 2015 at 11:46 PM
Subject: Re: Apche Ignite vs Tachyon
You're just partially correct, actually.
Apache Ignite (incubating) is a fully developed In-Memory Computing (IMC) platform (aka data fabric). "Supporting for Hadoop ecosystem" is one of the components of the fabric. And it has two parts:
- file system caching: fully transparent cache that gives a significant performance boost to HDFS IO. In a way it's similar to what Tachyon tries to achieve. Unlike Tachyon, the cached data is an integral part of bigger data fabric that can be used by any Ignite services.
- MR accelerator that allows to run "classic" MR jobs on Ignite in-memory engine. Basically, Ignite MR (much list its SQL and other computation components) is just a way to work with data stored in the cluster memory. Shall I mention that Ignite MR is about 30 times - that's 3000% - faster than Hadoop MR? No code changes is need, BTW ;)
When you say about "Tachyon... support big data stack natively." you should keep in mind that Ignite Hadoop acceleration is very native as well: you can run MR, Hive, HBase, Spark, etc. on top of the IgniteFS without changing anything.
And here's the catch BTW: file system caching in Ignite is a part of its 'data fabric' paradigm like the services, advanced clustering, distributed messaging, ACID real-time transactions, etc. Adding HDFS and MR acceleration layer was pretty straight-forward as it was build on the advanced Ignite core, which has been in the real-world production for 5+ years. However. it is very hard to achieve the same level of enterprise computing when you start from an in-memory file system like Tachyon. Not bashing anything - just saying.
I would encourage you to check ignite.incubator.apache.org: read the docs, try version 1.0 from https://dist.apache.org/repos/dist/release/incubator/ignite/1.0.0/ (setup is a breeze) and join our Apache community. If you are interested in using Ignite with Hadoop - Apache Bigtop offers this integration, including seamless cluster deployment which let you get started with fully functional cluster in a few minutes.
In the full disclosure: I am an Apache Incubator mentor for the Ignite project.
With best regards,
On Thursday, April 9, 2015 at 7:39:00 PM UTC-7, Pengfei Xuan wrote:
> To my understanding, Apache Ignite (GridGain) grows up from traditional