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  • What are the benefits of running chef-server instead of chef-solo?

    - by strife25
    I am looking at automated deployment solutions for my team and have been playing with Chef for the past few days. I've been able to get a simple web app up an running from a base Red Hat VM using chef-solo. Our end goal is to use Chef (or another system) to automatically deploy application topologies to the cloud as we run builds. Our process would basically run like so: Our web app code, dependencies, and chef cookbooks are stored in SCM A build is executed and greats a single package for images to acquire and test against The build engine then deploys new cloud images that run a chef client to get packages installed. The images acquire the cookbooks from SCM or the Chef server and install everything to get up and running What are the benefits and/or use cases for getting a Chef Server running? Are there any major benefits to have a Chef Server hold and acquire the cookbooks from SCM vs. using chef-solo and having a script that will pull the cookbooks from SCM?

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  • What are the functionalities of Distributed File systems and Distributed Storage Systems?

    - by Berkay
    i'm reading cloud vendors solutions for the distributed storage systems such as Amazon Dynamo and Google Big Table. and really confused in two terms : what is Distrubuted file systems for in cloud ? what is Distributed storage systems for? what are differences of these terms and functionalities ? if i understand these terms i will create the general architecture of the cloud vendors, any good tutorial or web page will be appreciated. Thanks

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  • Does cloud storage replicate the data over many datacenters if so it means i benefit content delive

    - by Berkay
    Let's assume that i want to use cloud storage service from one of the cloud storage provider, i got X gb structured and unstructured data and i will use this data as my contents of my interactive web page. And now i have some doubts about this point.I have many users and they are all visiting my web page from various countries.To be more specific first; does my data stored only of the Cloud Storage data center ? or Does my data replicated over many data centers of my provider? second if so; how can i benefit from content delivery network? (matching and placing users’ content nearest storage data centers)

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  • CentOS with an Ubuntu kernel

    - by Gaia
    The Rackspace cloud server tech tells my CentOS 5.4 VPS (Xen) runs "CentOS with an Ubuntu kernel" Could someone explain, in plain terms, what "CentOS with an Ubuntu kernel" means and if there are any disadvantages (performance, mgmt) between that and running CentOS with a CentOS kernel? Thanks

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  • How will I support 100,000 requests an hour?!

    - by tylerl
    I know this question is a little strange but I got lucky with an idea and I need some numbers to use for when I try to make a deal with a company. I'm wondering how much it'll cost me to run a site that's heavy on PHP and gets between 70,000 and 100,000 requests an hour on something like Rackspace's Cloud Servers. I have no idea how many servers I need or how much RAM each one should have. There will be a decent number of images on the site (probably something like 10,000 in the first couple weeks) and the site runs on about 2,500 lines of PHP code. I figure I should sign up for a CDN of some kind, although CDN In A Box is all I've heard of and I'm not sure it's necessary for a site that's already on a cloud platform. I've obviously never done anything like this before so I'm just looking to get an estimation of what I need for this massive site... Also, I use a database and I was wondering how that works - would I dedicate one of the cloud servers to running the database or would I need to put the database into each of the cloud servers? Thanks in advance...

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  • Cloudify: bootstrap-localcloud: operation failed?

    - by quanta
    OS: Gentoo, CentOS Version: 2.1.0 Follow the quick start guide, I got the below error when running bootstrap-localcloud: cloudify@default> bootstrap-localcloud STARTING CLOUDIFY MANAGEMENT 2012-05-30 14:55:50,396 WARNING [org.cloudifysource.shell.commands.AbstractGSCommand] - ; \ Caused by: org.cloudifysource.shell.commands.CLIException: \ Error while starting agent. \ Please make sure that another agent is not already running. Operation failed. What port Cloudify is using to check that agent is running? PS: it's working fine when running on Windows. UPDATE: Wed May 30 22:37:30 ICT 2012 Reply to @tamirkorem and @Itai Frenkel: I'm pretty sure because this is the first time I run that command on 2 servers. More clearly, here're the output: cloudify@default> teardown-localcloud Teardown will uninstall all of the deployed services. Do you want to continue [y/n]? 2012-05-30 22:43:33,145 WARNING [org.cloudifysource.shell.commands.AbstractGSCommand] - Teardown failed. Failed to fetch the currently deployed applications list. For force teardown use the -force flag. Operation failed. cloudify@default> teardown-localcloud -force Teardown will uninstall all of the deployed services. Do you want to continue [y/n]? Failed to fetch the currently deployed applications list. Continuing teardown-localcloud. .2012-05-30 22:46:39,040 WARNING [org.cloudifysource.shell.commands.AbstractGSCommand] - Teardown aborted, an agent was not found on the local machine. Operation failed. and this one is the detailed result: cloudify@default> bootstrap-localcloud --verbose NIC Address=127.0.0.1 Lookup Locators=127.0.0.1:4172 Lookup Groups=localcloud Starting agent and management processes: gs-agent.sh gsa.global.lus 0 gsa.lus 0 gsa.gsc 0 gsa.global.gsm 0 gsa.gsm_lus 1 gsa.global.esm 0 gsa.esm 1 >/dev/null 2>&1 STARTING CLOUDIFY MANAGEMENT 2012-05-30 22:36:12,870 WARNING [org.cloudifysource.shell.commands.AbstractGSCommand] - ; Caused by: org.cloudifysource.shell.commands.CLIException: Error while starting agent. Please make sure that another agent is not already running. Command executed: /usr/local/src/gigaspaces-cloudify-2.1.0-ga/bin/gs-agent.sh gsa.global.lus 0 gsa.lus 0 gsa.gsc 0 gsa.global.gsm 0 gsa.gsm_lus 1 gsa.global.esm 0 gsa.esm 1 >/dev/null 2>&1 Reply to @Eliran Malka: there is no such process listening on port 4172: # netstat --protocol=inet -nlp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 127.0.0.1:9050 0.0.0.0:* LISTEN 2363/tor tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 2331/mysqld tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 2293/cupsd

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  • How to install software on Amazon EC2 Windows instance?

    - by JohnIdol
    I've never used Amazon EC2 - I am thinking to test a few instances for running intensive computation processes I have a requirement for rather than buying real hardware. I am given to understand the thing is quite easy to setup - but I have no clue of how it actually works. Can I upload disc images and install just any software as on any other virtual machine or is there any significant difference? Any help appreciated!

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  • Rackspace Cloud servers backing up

    - by drunknbass
    Is there anyway to backup an image of a rackspace cloud server? something thats easy to do instead of running scripts backing up each db and fs. This seems like something easy to do on EC2 and impossible to do on rackspace cloud. Also i know rightscale can work with rackspace cloud only for ubuntu images. Is it possible to do this with rightscale easily if its not yet available directly in rackspacecloud?

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  • Co-location vs. cloud hosting

    - by RainyRat
    We have a decent-sized server estate: several ProLiants, plus IBM BladeCentre and SANs running a VMWare environment. Due to an imminent premises move, we're not going to have enough space for a server room, so I've been looking at moving everything out to a colo. My boss is more keen on the idea of cloud-hosting everything, which would include a couple of high-traffic websites (about 9m pageviews/month), our Exchange sever (about a million clean emails sent/received monthly), as well as file/print/AD/all the ususal stuff. This doesn;t sound like a good idea to me, but I'm new to the ways of the cloud. Can anyone offer any advice?

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  • Which cloud service is best?? can you order it??

    - by mathew
    Hi there are many cloud services out there but famous are mentioned below...can any one tell me which one is first,second,third etc....in terms of money,performance and reliability.. 1) Amazon 2) Rackspace 3) Softlayer 4) Vps.net I dont know other actually I am only looking for Linux services .... Mathew

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  • Architecture behind live streaming [on hold]

    - by l19
    I'm a Comp Sci undergraduate student, and I'm currently trying to understand the architecture behind streaming. I hear several terms and I'm not quite sure how they are related (e.g. streaming, broadcasting, ingesting, etc.) Is there a blog post or book that explains: How it all works in a high-level view (the workflow) The architecture (i.e. I capture content using my camera and want to display it real-time to an audience. I imagine that the content will be transferred to a server, but how does that server transmit the information to several users simultaneously?) Thanks!

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  • Cloud Providers that support FreeBSD?

    - by Jed Daniels
    I'm looking for recommendations from the wise and all-knowing Server Fault community on cloud hosting providers that support running FreeBSD. Ideally ones that don't require special tweaks to the FreeBSD system, but any recommendations would be appreciated. Suggestions? Recommendations? Advice? Tips? War stories? Thanks in advance.

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  • Amazon EC2 migration from one region to the other

    - by Gnanam
    I'm using the following Amazon EC2 resources in the US East (Virginia) region: 1 Running Instance 1 Elastic IP 2 EBS Volumes 100 EBS Snapshots 1 Key Pair 2 Security Groups 5 My Own AMIs (customized based on my application stack) My instance is based on Linux distribution (CentOS) and my AMIs are S3-backed. Both EBS volumes are mounted on this running instance. We're planning to migrate our deployment to US-West region. Because Amazon EC2 resources are not shared across regions, my questions are: What are all the factors that I need to consider in advance? What are all the recommended & different ways of migrating each EC2 resources from one region to the other? Are there any hidden risks involved during and/or after the migration? Experts ideas/suggestions/recommendations on this are highly appreciated.

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  • Reduce power consumption of gaming computer while idle

    - by White Phoenix
    This is my current build: EVGA X58 (first generation) motherboard Intel i7 965 clocked @ 3.3 Ghz 3x DDR3-1600 Corsair RAM at stock timings and voltages Corsair AX750 80 Plus Gold PSU 1 Optical Drive 1 Seagate 7200.10 500 GB drive 2x Western Digital Caviar Black 1 TB drives OCZ Vertex 1 60 GB EVGA GTX 460 oc'd at 800/1600/1850 Antec 1200 case HT-Omega Striker 7.1 Sound Card Windows 7 32-bit Professional (PAE Enabled) I've already seen this post Reduce power use on computer and this post How do I lower power consumption of my computer and while useful, I'm looking for answers specific to my build and OS. I'm pretty sure this build is a energy-intensive build by default, but I want to try to reduce the amount of energy my build uses when I leave it idle (when I go to bed or go out, etc). The first requirement for this machine is that I need to leave it on, so I cannot turn it off while it's being unused. I run it as a file server for personal reasons and I also leave it on in case people leave me messages on various IM services and chat clients (IRC, MSN, Steam, XFire, Pidgin, etc). I'm also unable to replace the parts in my computer with a cheaper "greener" part. What are some ways to minimize the amount of power the machine uses? I'm already using a high efficiency power supply (80 Plus Gold), but I imagine there's other things that can be done in the BIOS and Windows' power settings to reduce power usage while I'm not using the computer. From what I can tell, I can't use Sleep since that'll disable network access (whole reason why I leave the computer on in the first place). I already turn off my monitor when it's not in use. I enabled Intel SpeedStep within the BIOS (I know, I have a 965 and why am I enabling SpeedStep?) Should I bring the graphics card back to stock speeds and lower the clock on the processor even more? Main reason why I'm asking is I think this computer alone is the reason why my power bill is high, so I want to reduce its consumption to as low as possible without having to shut the thing down.

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  • I need a few minutes of dedicated server a week, but not for hosting, just to convert ogg etc.

    - by talkingnews
    I'm completely happy with my webhosting, it's just that I need to do one little thing they won't allow, and that's run an instance of Sox to convert about 30 mp3s to ogg files, in various directories, a couple of times a week, to be done automatically in response to the detection of the upload of an mp3. Probably looking at a minute of server time over the whole week. I've had unhelpful suggestions on other forums like "why not leave your home PC on 24 hours a day and then use all your isp bandwidth to do this", which doesn't work for me. I know that I can host files on, say, Amazon S3, but is there something similar for my needs? All it would need to do would be: wget/ftp the mp3 files, convert them to ogg, ftp the files back to my hosting. Of course, all this wouldn't be needed if there was such a thing as a compiled binary of Sox (or any mp3ogg converter) for Centos which I could upload without needing root access, but I've given up asking that one, but always open to suggestions!

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  • How to choose size for a cloud server (rackspace)

    - by Emil
    We're going to test the rackspace cloud next week to see how it's working with our web app. It's a LAMP environment with a lot of MySQL databases. How do I choose the "right" server size? On Rackspace I can choose slices with the memory of 256, 512, 1024, 2048, 4096 etc. Right now we don't have a lot of traffic (approx. 1000 visitors/day) but I thought the whole "cloud" idea was to not be limited and auto scale. Update: What I'm looking for is now a specification of what I need. I know it's too complex. I'm looking for examples, case studies etc. It would be interesting to hear something like "Yes we're serving 10 000 daily requests without spikes on a LAMP stack with only one slice on with 2 GB RAM".

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  • which server is best for me??

    - by mathew
    I am looking for a best hosting service for my website. My website is a PHP MySQl driven site which hase got site scrapping for more than 10 websites and near about 8-10 API pursing and some about 150 mb dat file reading(from local hard drive), and also one rss pursing,Live graph from other sites, geo map from Google,Map api from Google and so on. one widget which real-time result for any one who chose the same. so my question is which is best option for me. actually I am considering softlayer cloud as they are pretty cheap and more facilities than rackspace. another option is a dedicated server which has 2 single core processor, 4GB ram and 250GB sata II. with 100 mbps uplink. so please tell me which will be the best option?? I heard that dedicated server has lots of limitations than cloud. but for cloud they uses SAN for storage so I am afraid the reading proces for database may be bit slower...and their basic plan ram is only 1 GB.

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  • Monitoring System for the cloud?

    - by Maxim Veksler
    I need a monitoring system, much like ganglia / nagios that is build for the cloud. I need it to support : Adding / removing nodes dynamically. (Node shuts down, dose not imply node failure...) Dynamic node based categorization, meaning node can identify them self as being part of group X (ganglia gets this almost right, but lacks the dynamic part...) Does not require multicast support (generally not allowed in cloud based setups) Plugins for recent cool stuff such as Hadoop, Cassandra, Mongo would be cool. More features include: External API, web interface and co. I've looked at Ganglia, munin and they both seem be almost there (but not exactly). I would also go for reasonably priced Software as Service solution. I'm currently doing research, so Suggestions are highly appreciated. Thank you, Maxim

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  • Using WebSphere CloudBurst with PowerVM to AIX virtualization over a cloud

    - by ADD Geek
    hi there we are studying the virtualization option to reduce our datacenter cost, and this research was assigned to me. we looked into alternatives and we almost reached a conclusion that PowerVM is the only option to virtualize pSeries servers. we found no signs of cloud support explicitly mentioned in any document, however there was the mention of CloudBurst. from the videos we watched and the documents we read, it seems that CloudBurst is more oriented towards Application Servers (WebSphere Software). but our environment is not relying only on WebSphere. we have some banking applications, Oracle Databases and MQ/Broaker. the question is: 1- can we virtualize the existing applications (all running AIX) on a cloud running on top of some of the existing servers? (given that we do the sizing properly) 2- is PowerVM to run on top of CloudBurst? 3- if the above solution is applicable, is this some sort of HA solution (since the VM will run on top of multiple physical boxes, while the same physical box will run multiple live images) thanks for your help

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  • I need a relatively cheap host, which will be able to handle sudden peaks in traffic?

    - by Morten K
    Hello, We're launching a product in a few months, which will obviously have a website. Judging from our current traffic, we believe that overall traffic will probably not be that much, but we are aiming at promoting the site heavily using social media. This has the typical problem, that IF we get suddenly get picked up by a large tech blog, we will see a sudden burst: A very heavy increase in traffic all of the sudden. If we use a cheap charlie host as our current host is (www.unoeuro.com) or something similar like GoDaddy, I'm afraid that the site will go down under the load. If that happens, then we might as well have thrown our social media marketing dollars out of the window. Our site will be relatively lightweight, all videos hosted at Youtube or Vimeo and other than that mainly just a standard webpage (ie nothing too heavy). I am hoping for recommendations for a good hosting company, which has some form of scalable hosting, so if / when a traffic surge hits, the site will not go down.

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  • Using multiple PaaS Vendors

    - by jpabluz
    I am developing a SaaS App, and I want to decide for a PaaS Vendor. Since one of my biggest concerns is uptime, is there an application or service, that allows me to use several PaaS Vendors (like Azure, Google App Engine, Amazon Web Services, etc.)? I want my application to be able to respond from one PaaS Vendor to another almost instantly without any downtime, to use the redundancy that this provides. This means that I need to be able to use the different services homogeneously.

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  • How do I set up an sftp user to login with a password to an EC2 ubuntu server ?

    - by Doron
    Hello, I have an Ubuntu Server running on an EC2 instance. To login to that server I use a certificate file without any password. I've installed and configured vsftpd and created a user (let's call him "testuser") for which I've set a /bin/false ssh terminal so it will only be able to connect via sftp and upload/access files on his home directory. However - when I try to connect to the server from my computer, running sftp testuser@my-ec2-server I get Permission denied (publickey). Connection closed messages so I can't log in. How can I remove the certificate requirement for this user only (meaning, the "ubuntu" user will still have to use the certificate file to login via ssh), so normal sftp clients will be able to connect using a username and a password ? Thank you. PS Using Ubuntu Server 10.10 official AMI from canonical, 64bit on a micro instance.

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