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Thread: Cloud Linux is not Cloud Hosting
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01-26-2011, 09:04 AM #1Web Hosting God
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Cloud Linux is not Cloud Hosting
Seeing quite a few hosts that use CloudLinux state on their sites that they offer Cloud Hosting. CloudLinux is just an OS, whereas Cloud Hosting depends on architecture.
I could make a brand new Linux distro and call it WindowsLinux, doesn't mean it is Windows, heh,
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01-26-2011, 09:57 AM #2Eternal Member
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I haven't noticed hosts doing that. Are you sure they are not actually using a 'cloud' environment in addition to CloudLinux (I know some hosts that are doing this)?
But anyway, even if they are simply using CloudLinux, the simple answer is that this is all for marketing purposes. I consider 'cloud' to be a marketing term at this point in any case.
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01-26-2011, 10:34 AM #3WHT Addict
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Speedysparrow was using VPS.net, so they were offering true cloud hosting solutions according to the vps.net architecture.
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01-26-2011, 10:48 AM #4Cloud Hosting Pioneer
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Sometime last year this was also discussed. CloudLinux is now branded as the "Cloud Ready OS". Cloud can be SaaS, PaaS, and IaaS. The problem comes in when most people here refer to IaaS, and rightfully so. Web Hosting providers are normally IaaS, sometimes PaaS.
Companies that you have mentioned above appear to be claiming Cloud when in fact they are lacking the underlying inrfastructure to truly be, Cloud. Even if they are selling PaaS and not IaaS, the infrastructure of their business must be Cloud as a standard shared web hosting platform, vps platform, etc are not Cloud if they lack the required components of Cloud.
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01-26-2011, 10:52 AM #5Cloud Hosting Pioneer
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You are welcome to your opinion, but Cloud is not a marketing term. It is much more defined and there are standards being set. Besides companies like Tier 1 Research and the 451 Group, the US Government, and even providers are continuing to properly define and establish the definition.
Marketing terms are things like "compute cycles" and "overselling".
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01-26-2011, 10:57 AM #6Junior Guru
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01-26-2011, 12:48 PM #7Web Hosting Master
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As defined in wikipedia:
http://en.wikipedia.org/wiki/Cloud_computing
"Cloud computing is location-independent computing, whereby shared servers provide resources, software, and data to computers and other devices on demand, as with the electricity grid."
I am sorry, but I cannot see a place where "cloud" is nwell defined term in any way or form. While elasticity, scalability, reliability are often considered to be "cloud" related qualities -- even that is not easily defined.
For example:
Try to scale single instance on AWS -- you have to create new instance, and even that is not scalable beyond one real server -- so you have to get more instances.
Reliability -- same story here, your instance on AWS can go down at any moment. Most likely it will be down more often then dedicated server.
Elasticity -- well, what does that term really mean?
So, I kind of disagree with bashing people for something that doesn't agree with "your" definition of the cloud.
And just for the record: I don't think that putting CloudLinux on a single shared hosting server makes that shared hosting a cloud. In my view, for it to be considered a cloud. Most likely -- I am incorrect, but that is my wishful thinking of how cloud hosting should be defined.Igor Seletskiy
CEO @ Cloud Linux Inc
http://www.cloudlinux.com
CloudLinux -- The OS that can make your Shared Hosting stable
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01-26-2011, 01:20 PM #8Web Hosting Evangelist
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I also agree, There is what I believe to be a certian standard, sort of like PCI Compliance Standards, or SAS 70, or some of the others. To me there are a set of rules you must abid by to be a "cloud" hoster.
1. Centralized Storage
2. N+1 In the event a switch fails, do you have a hot standby?
3. Automatic failover (WITHOUT HUMAN INTERVENTION)
4. Scalability
5. I think being able to do load balancing and stuff is pretty important, but I dont think this is a limiting factor.
If you can obtain these sort of standards, Im sure there are a few things i've missed. But these are the basis.
Marketing... LOL. I guess it depends on what kind of cloud your thinking of..█ Michael Wallace - michael@innoscale.net
█ Innovative Scaling Technologies Inc. - A Cloud Service Provider
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01-26-2011, 01:24 PM #9Cloud Hosting Pioneer
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The wikipedia article also states that device and location independence is a key feature of Cloud. Cloud Linux is not device or location independent, it's just an OS that is not utilizing multiple servers or locations. This is a part of the requirement that goes into further defining reliability as there needs to be a level of redundancy in the environment.
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01-26-2011, 01:25 PM #10Web Hosting Master
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Michael,
Who came up with this "standard"? Which governing body approved it? Where I can read about it?Igor Seletskiy
CEO @ Cloud Linux Inc
http://www.cloudlinux.com
CloudLinux -- The OS that can make your Shared Hosting stable
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01-26-2011, 01:28 PM #11Web Hosting Master
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As I stated -- I don't consider server with CloudLinux to be a Cloud.
Yet, for shared hosting customer, device and location independence is there. They really don't need to know if they are hosted on particular server (you can always move them to another shared hosting server) nor location (do most customer's care in which DC they are?).
Reliability: Would multiple power supplies satisfy reliability? What about multiple network connections? RAID disks?
Try AWS instance -- see how reliable it is. Yet, AWS is considered to be a cloud.
I am sorry, but Cloud is used as a marketing term. It was created as a marketing term -- and there is very little in terms of technical definition of what "cloud" should really be.
And just in case -- no, CloudLinux is not a Cloud. I agree with thatIgor Seletskiy
CEO @ Cloud Linux Inc
http://www.cloudlinux.com
CloudLinux -- The OS that can make your Shared Hosting stable
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01-26-2011, 01:39 PM #12Cloud Hosting Pioneer
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NIST released a definition of Cloud in October of 2009 which included the following statement:
Note 1: Cloud computing is still an evolving paradigm. Its definitions, use cases, underlying technologies, issues, risks, and benefits will be refined in a spirited debate by the public and private sectors. These definitions, attributes, and characteristics will evolve and change over time.
Rackspace, Amazon, and other large Cloud infrastructure's were built more or less as you stated and they are NOT per instance redundant across multiple servers, and/or locations. They are essentially a VPS provider. When the host server that goes down when you are on that server, so does the instance.
Rackspace still to this day clearly states on their (new) website that servers are RAID10, and in the event of a host node failure the customers will go down in which they will try to resolve it in 3 hours or less. Their instances do not utilize centralized storage, and they are not redundant across multiple physical servers.
The debate has been last year that the level of redundancy required is complete server independence. This has been discussed and is becoming the standard. Customers are now expecting this level of service and rightfully so. Every major Cloud platform vendor has this capability now, and they are all instructing their new partners and customers to utilize it.
The standards will continue to evolve and single points of failure of an entire server, switch, or other traditional point of failure crashing will be eliminated in Cloud.
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01-26-2011, 01:53 PM #13Web Hosting Master
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Hmm, based on this definition from NIST:
http://csrc.nist.gov/groups/SNS/clou...ud-def-v15.doc
Shared hosting with CloudLinux is Cloud (I still don't agree with it, but I am going against well defined standard).
Lets see the "Essential Characteristics":
On-demand self-service. A consumer can unilaterally provision computing capabilities, such as server time and network storage, as needed automatically without requiring human interaction with each service’s provider.
Broad network access. Capabilities are available over the network and accessed through standard mechanisms that promote use by heterogeneous thin or thick client platforms (e.g., mobile phones, laptops, and PDAs).
Resource pooling. The provider’s computing resources are pooled to serve multiple consumers using a multi-tenant model, with different physical and virtual resources dynamically assigned and reassigned according to consumer demand. There is a sense of location independence in that the customer generally has no control or knowledge over the exact location of the provided resources but may be able to specify location at a higher level of abstraction (e.g., country, state, or datacenter). Examples of resources include storage, processing, memory, network bandwidth, and virtual machines.
Rapid elasticity. Capabilities can be rapidly and elastically provisioned, in some cases automatically, to quickly scale out and rapidly released to quickly scale in. To the consumer, the capabilities available for provisioning often appear to be unlimited and can be purchased in any quantity at any time.
Measured Service. Cloud systems automatically control and optimize resource use by leveraging a metering capability at some level of abstraction appropriate to the type of service (e.g., storage, processing, bandwidth, and active user accounts). Resource usage can be monitored, controlled, and reported providing transparency for both the provider and consumer of the utilized service.
Lets see service models:
Cloud Platform as a Service (PaaS). The capability provided to the consumer is to deploy onto the cloud infrastructure consumer-created or acquired applications created using programming languages and tools supported by the provider. The consumer does not manage or control the underlying cloud infrastructure including network, servers, operating systems, or storage, but has control over the deployed applications and possibly application hosting environment configurations.
Does it mean that CL on a dedicated server is a cloud? Fine, I think I would have to cave in, and accept that it does. It goes against my belief of what cloud is, but based on this definition, shared hosting with CL & dedicated server is a cloud.
TBH: Based on this definition, pretty much any shared hosting is a cloud.Igor Seletskiy
CEO @ Cloud Linux Inc
http://www.cloudlinux.com
CloudLinux -- The OS that can make your Shared Hosting stable
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01-26-2011, 02:02 PM #14Web Hosting Evangelist
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Ahhhhhhh,
I just now read this, and i know why this is a battle now...
"CloudLinux -- The OS that can make your Shared Hosting stable"
Igor being the CEO of this company, and we are setting higher standards that he can achieve with this "OS that makes shared hosting stable"
Its all coming Evident.. :-)█ Michael Wallace - michael@innoscale.net
█ Innovative Scaling Technologies Inc. - A Cloud Service Provider
█ 24/7 Support, Call us @ 1-307-200-4880
█ www.innoscale.net - Seattle, Silicon Valley, Dallas, Chicago, Washington D.C., and Europe
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01-26-2011, 02:09 PM #15Web Hosting Master
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Michael -- sorry I didn't realize you haven't seen my signature at the end of each message.
I am sorry if I confused you or bored you. I thought we had meaningful conversation on what is cloud, and if CL can be considered a cloud when it runs on a single server (note, I don't think it can).
Yet, if you think it is waste of your time, I apologize, and stop posting.Igor Seletskiy
CEO @ Cloud Linux Inc
http://www.cloudlinux.com
CloudLinux -- The OS that can make your Shared Hosting stable
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01-26-2011, 02:33 PM #16Web Hosting Evangelist
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Yes, but instead of argueing. You should take into heart what cloud hosters are currently doing.
Also what kind of standards we have put into place.
Thanks,
EDIT: This way you can go back to the drawing board and make your product meet and exceed those standards.Last edited by arisythila; 01-26-2011 at 02:36 PM.
█ Michael Wallace - michael@innoscale.net
█ Innovative Scaling Technologies Inc. - A Cloud Service Provider
█ 24/7 Support, Call us @ 1-307-200-4880
█ www.innoscale.net - Seattle, Silicon Valley, Dallas, Chicago, Washington D.C., and Europe
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01-26-2011, 03:14 PM #17Web Hosting Master
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So, what is your idea of a cloud hosting?
Igor Seletskiy
CEO @ Cloud Linux Inc
http://www.cloudlinux.com
CloudLinux -- The OS that can make your Shared Hosting stable
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01-26-2011, 03:18 PM #18Cloud Hosting Pioneer
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We're not all going and spending large sums of money to create a higher level of reliability because it's fun, it's because people are expecting this of Cloud. Redundant power supplies, RAID, and all of that is fine but servers still fail and they fail hard.
Centralizing the storage, releasing an instance/vm from a single server, and other environmental flexibility is doing great great things for this business. I say embrace it with open arms as continuing to deny these benefits will only leave you behind.
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01-26-2011, 03:19 PM #19Web Hosting Evangelist
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When i think if cloud hosting, I think scalable, and high availability. If srv1 crashes, its got to provision and run on srv2.
Im not saying a dedicated cannot be reliable, but just I think our main thing is having as few single points of failures as we can. Thats our main goal.█ Michael Wallace - michael@innoscale.net
█ Innovative Scaling Technologies Inc. - A Cloud Service Provider
█ 24/7 Support, Call us @ 1-307-200-4880
█ www.innoscale.net - Seattle, Silicon Valley, Dallas, Chicago, Washington D.C., and Europe
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01-26-2011, 03:35 PM #20Web Hosting Master
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1. As of today, I see cloud often being less reliable then dedicated servers. I know it goes against what cloud is/its architecture and everything else, but due to complexity, human error, SAN issues, network issues, and 100s of other reasons -- I see that majority of cloud services are having issues. Often those issues spawn the whole cloud, and not just a single server. And this happens with major companies who know what they are doing. Rackspace, Amazon, name any cloud company -- I am sure they had major downtime.
I am also a strong believer that as platform matures -- this will change, and cloud will become more reliable then dedicated servers.Last edited by iseletsk; 01-26-2011 at 03:40 PM.
Igor Seletskiy
CEO @ Cloud Linux Inc
http://www.cloudlinux.com
CloudLinux -- The OS that can make your Shared Hosting stable
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01-26-2011, 03:45 PM #21Web Hosting Evangelist
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Last year we were able to achieve 100% uptime. Most of our multi tiered customers (clustered customers) that are running multiple in gateways, load balancers, and application servers noticed ZERO downtime last year.
It was kind of funny, I had a server crash awhile back
System Uptime : 373 days, 16 hours, 5 minutes
Controller Uptime : 42 days, 7 hours, 21 minutes
Last Server Failure Time: Sat Aug 28 08:43:22 2010 (srv2)
So in this Grid, we had srv2 fail. Applogic, saw that it failed and it would not respond. So applogic logged into the IPMI powered down the srv, powered it back up, rebuilt the volumes, and it was back in good running state again...
Mind you, We got ZERO calls about this server crashing. I didn't even know it happened until septermber when i did my rounds..█ Michael Wallace - michael@innoscale.net
█ Innovative Scaling Technologies Inc. - A Cloud Service Provider
█ 24/7 Support, Call us @ 1-307-200-4880
█ www.innoscale.net - Seattle, Silicon Valley, Dallas, Chicago, Washington D.C., and Europe
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01-26-2011, 04:10 PM #22Cloud Hosting Pioneer
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You have heard about major Cloud problems because it effects many customers, but you don't hear about the tens of thousands of servers crashing every day that are not in a Cloud because it only effects one server, or one application. There have been far fewer of these outages on superior technology with complete redundancies where even the failure of the Cloud engine results in no downtime of any running Cloud components.
Fact. We have been in business for 13 years primarily operating as a Managed Hosting provider. We host many traditional infrastructures, still to this day we host more off the cloud than on the cloud.
Fact. Of that business, these customers spend significantly more to create a high available environment than they would in Cloud.
Fact. Those customers routinely have large scale and costly outages that require manual intervention of physical engineers and emergency engineers in the middle of the night to correct conditions.
Fact. Our Cloud's have never gone down unless we wanted it to which is 1-2x/year for our major upgrades. During those time, the most stringent customers have multiple clouds so they remain 100% available as only one is done at a time.
Fact. As Michael has stated, it is automatic when failures do occur. We have a failure two days ago in a Cloud. The Cloud sensed the failure, restarted all instances on another available server, started rebuilding the data streams, logged into the failed server via IPMI and rebooted it, and it came back up and cleared the data streams and started over as a fresh new server in the Cloud.
Single points are failure are eliminated if the provider chooses to do so. There's no reason to see full Cloud outages if every component, including the engine, is redundant.
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01-26-2011, 04:20 PM #23Virtually Flawless ;)
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Cloud is a marketing term plain and simple.
That's a Cluster. Not a cloud really unless you define them to be the same.
Cloud isn't anything new - they have been around since the 1950's as Clusters - some marketing people invented the Cloud word for the ignorant masses who find words like cluster and processor and such scary. Same thing happened with hacker vs cracker.
A cloud supposedly means a high availability cluster - so why not call it that? marketing.....
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01-26-2011, 04:29 PM #24Web Hosting Master
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Care to quote source of your statistics?
[quote]
Fact. Those customers routinely have large scale and costly outages that require manual intervention of physical engineers and emergency engineers in the middle of the night to correct conditions.
Fact. Our Cloud's have never gone down unless we wanted it to which is 1-2x/year for our major upgrades. During those time, the most stringent customers have multiple clouds so they remain 100% available as only one is done at a time.Igor Seletskiy
CEO @ Cloud Linux Inc
http://www.cloudlinux.com
CloudLinux -- The OS that can make your Shared Hosting stable
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01-26-2011, 04:30 PM #25Web Hosting Master
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Igor Seletskiy
CEO @ Cloud Linux Inc
http://www.cloudlinux.com
CloudLinux -- The OS that can make your Shared Hosting stable
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