Archive for the 'C3' Category

WeoGeo, geospatial, grid computing, C3, Safe

Safe Software and WeoGeo Partnership

The facts of this partnership are well covered by the press release and Directions Magazine’s coverage (see Adena Schutzberg’s article and podcast). I thought I would give a bit more of the why.

1) ETL is fundamental to the needs of our customer base.
2) Safe is the best at spatial ETL.
3) People trust Safe for ETL.
4) If you use CAD or GIS software, there is a good chance you use Safe Software.

For a marketplace to be successful, its players have to trust their interactions and delivery mechanisms. Safe operates on over 200 different file formats across multiple platforms. Bringing this type of technology to our users is critical to our success; bringing Safe to our customers is just good sense.

What does Safe get out of this? We give them the cloud for FME Server and provide their users with the path to the future of web infrastructure.

Together, we get to focus on our strengths and bring new tools to bear on our respective businesses.

I am excited about our opportunities and the impacts I believe we will have on the spatial industry.

Amazon, grid computing, C3, WeoCEO

Amazon Web Services EC2 Outage

This weekend was a bit crazy for some of the AWS EC2 users. EC2’s “management software erroneously terminate[d] a small number of user’s instances” (from the AWS forum post). Some of our instances were among them providing an opportunity to test the fail-safe mechanisms in WeoCEO. We received the following email:

From: Amazon Web Services
Sent: Saturday, September 29, 2007 5:46 PM
To: David Kohler
Subject: Amazon EC2 Notification of Terminated Instances

Hello,

This is just a quick note to let you know that some of your instances were erroneously terminated today. We have resolved the underlying issue, and the service is fully available.

You can find a summary of the issue here:
http://developer.amazonwebservices.com/connect/thread.jspa?messageID=68169𐩉

These are your affected instances:
i-8004e0e9
i-681ef101

We apologize for this inconvenience.

Sincerely,

The Amazon EC2 Team

If we had not prepared for this by building WeoCEO, this could have been a real issue for us. We would have needed to scramble staff at 6 AM on a Saturday morning. Fortunately, WeoCEO recovered from the failure and it was not until Monday afternoon that we notice that it happened to a lot of other people.

From WeoCEO’s architect, Bob Banfield’s, forum post:

Here is a quick shot from our WeoCEO logs. We told WeoCEO that regardless of usage we want a minimum of two instances running, so that is the initial number of instances at 6am in the morning, even though we are receiving next to no traffic. At 6:09, i-681ef101 stops responding (the first of five allowed consecutive failures). At 6:10 it still hasn’t responded, and at 6:11 both it and instance i-52907e3b have now stopped responding. Instance i-52907e3b comes back up in another 2 minutes, but instance i-681ef101 is ruled dead after 5 failures. It is automatically terminated and a new one is brought up in its place.

(SSS) Sat Sep 29 06:07:24 2007 Weoceo[6562]: Overall usage = 0% NumInstances = 2
(SSS) Sat Sep 29 06:08:25 2007 Weoceo[6562]: Overall usage = 0% NumInstances = 2
(EEE) Sat Sep 29 06:09:25 2007 Weoceo[6562]: Instance i-681ef101 has not reported statistics (1/5)
(SSS) Sat Sep 29 06:09:25 2007 Weoceo[6562]: Overall usage = 0% NumInstances = 2
(EEE) Sat Sep 29 06:10:25 2007 Weoceo[6562]: Instance i-681ef101 has not reported statistics (2/5)
(SSS) Sat Sep 29 06:10:25 2007 Weoceo[6562]: Overall usage = 0% NumInstances = 2
(EEE) Sat Sep 29 06:11:26 2007 Weoceo[6562]: Instance i-681ef101 has not reported statistics (3/5)
(EEE) Sat Sep 29 06:11:26 2007 Weoceo[6562]: Instance i-52907e3b has not reported statistics (1/5)
(EEE) Sat Sep 29 06:11:26 2007 Weoceo[6562]: No instances have reported statistics.
(EEE) Sat Sep 29 06:12:26 2007 Weoceo[6562]: Instance i-681ef101 has not reported statistics (4/5)
(EEE) Sat Sep 29 06:12:26 2007 Weoceo[6562]: Instance i-52907e3b has not reported statistics (2/5)
(EEE) Sat Sep 29 06:12:26 2007 Weoceo[6562]: No instances have reported statistics.
(EEE) Sat Sep 29 06:13:26 2007 Weoceo[6562]: Instance i-681ef101 has not reported statistics (5/5)
(EEE) Sat Sep 29 06:13:26 2007 Weoceo[11310]: Terminating i-681ef101 due to lack of statistics
(SSS) Sat Sep 29 06:13:26 2007 Weoceo[6562]: Overall usage = 0% NumInstances = 1
(III) Sat Sep 29 06:13:26 2007 Weoceo[6562]: Launching 1 instance(s)
(III) Sat Sep 29 06:13:26 2007 Weoceo[11310]: Terminating 1 instance
(SSS) Sat Sep 29 06:14:28 2007 Weoceo[6562]: Overall usage = 0% NumInstances = 1
(SSS) Sat Sep 29 06:15:28 2007 Weoceo[6562]: Overall usage = 0% NumInstances = 1
(SSS) Sat Sep 29 06:16:29 2007 Weoceo[6562]: Overall usage = 0% NumInstances = 1
(SSS) Sat Sep 29 06:17:29 2007 Weoceo[6562]: Overall usage = 0% NumInstances = 1
(SSS) Sat Sep 29 06:18:29 2007 Weoceo[6562]: Overall usage = 0% NumInstances = 1
(III) Sat Sep 29 06:19:05 2007 Weoceo[11351]: Added ID=i-94ce20fd, PublicHost=ec2-67-202-13-222.z-1.compute-1.amazonaws.com, Host=domU-12-31-36-00-1D-B4.z-1.compute-1.internal, PublicIP=67.202.13.222, IP=10.253.34.66
(SSS) Sat Sep 29 06:19:32 2007 Weoceo[6562]: Overall usage = 0% NumInstances = 2
(SSS) Sat Sep 29 06:20:32 2007 Weoceo[6562]: Overall usage = 0% NumInstances = 2

Email warnings were delivered to me 6am on Saturday alerting me to the problem, however I was fast asleep and WeoCEO corrected identified and corrected the problem.

We believe in the future of scalable utility computing. Dealing with events such as these is just a part of the issues with these types of systems that we’ll all have to overcome to make this future work. Our goal is that we can share what we are creating for WeoGeo in a way that helps other overcome such problems.

I do not wish to minimize the impact of this API outage, but it would be unrealistic to assume that this type of event will not happen in the future. We should all consider this in building our virtual computing architectures. The use of AWS means that you are outsourcing your metal infrastructure. This means that your system design must be organic and self-healing (see also slideshare link).

WeoCEO was built to help us at WeoGeo survive these types of outages. We are completing our private beta shortly, and are releasing the latest version of WeoCEO that we will be bringing into open beta. Contact us at WeoCEO [at] WeoGeo [dot] com if you would like to participate. Open beta will provide the stable IP addressing and recovery options for one instance for free.

Our solution is simple to use and operate, but does expect that you have some working knowledge of EC2. There are others who can help in building these types of architectures on AWS from the ground up (some of those contributed to the above AWS Forum thread including Thorsten at RightScale and Reuven at Enomaly).

Please be aware of the limitation of utility computing, as well as the promise. Planning for these outages will be a requirement for safely outsourcing your metal resources.

Amazon, grid computing, C3, WeoCEO

Amazon Web Services StartUp – Boston Presentation

I was out of town last week. I’ll try and catch up on a number of subjects this week.

One of the reasons I was out of town was that I was invited by AWS to present at their StartUp event in Boston.

A copy of the presentation may be seen on Slideshare.net (or just click on the image). It was a great event, and I enjoyed sharing the stage with the talented people from AideRSS, Praxeon, and Geezeo. It was good to interact with others who are building (and bootstrapping) new web services using AWS.

I truly believe that utility computing is going to change the way businesses get started and (eventually) operate. However, we are going to have to build systems that are organic in how they handle resources, i.e. scale up and down as a function of load. In addition, these systems need to be self-healing by automatically addressing processor and storage outages.

The importance of self-healing will be evident in the next post.

Amazon, grid computing, C3, WeoCEO

Commodity Computing Cycles (C3) and ETech

I was preparing for ETech and ran across Jeff Barr’s recent AWS blog.  He points to a number of interesting links, including WeoCEO’s new website (thanks Jeff!). 

One of the links he points to is David Berlind’s video on “Is it time to throw away your servers?“.  It was a highly entertaining video, but more importantly it clearly laid out the business case for why cluster and grid computer is going to revolutionize this business.  We must be channeling the same psychic hotline, because it mirrors the case I laid out in the Cycles in the Sky blog earlier this week.  (However, David’s is far more entertaining, with real numbers.)

Commodity Computing Cycles (C3) is a paradigm shift in business computing.  It is coming, and to be honest, I have no way to predict the impact of the change on efficiency and productivity in the business computer arena.  I do know that in order for it to achieve its potential, those of us focusing on cluster and grid computing have to deliver some sort of Service Level Agreement (SLA).  While David points to the cost advantages, what he did not point out is the lack of an SLA from Amazon.  Someone running an ecommerce site may willingly pay the additional money shown in David’s video for a traditional data center operation, if they can be assured of up-time and bandwidth.  Without these assurances, the dollar savings obtained by using a C3 solution may be given back in poor user experience or web client customer service.

That being said, I think that we (the greater community of Amazon Web Services and EC2 users) are working towards achieving reasonable service levels upon which we can build ecommerce solutions.  We developed our WeoCEO ISO because it was required in order to host our WeoGeo geospatial exchange on EC2.  There are other service issues, such as large file ingestion (imagine trying to push a terabyte size file up to S3!), but we are confident that these too can be overcome and solutions delivered to the community.  I truly believe that the revolution is here, and like any other paradigm shifts, there will be a tremendous opportunity for those willing to place their stakes in the ground to deliver solutions to those who follow.
 

On other notes, I will be taking my soapbox to ETech next week.  Find me if you would like to chat about such things as revolutions and paradigm shifts in cluster and grid computing, as well as geospatial technologies.