Questions tagged [cloud-computing]

Cloud-Computing: Marketing term for clustered resources

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11 views

COrrelation of iaas with cloud migration

Iam learning cloud computing about cloud migration, but i'm confused between cloud migration with iaas, what is the correlation of cloud migration with iaas ?
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1answer
17 views

What's the rationale behind using reverse-proxy in front of an application server?

Why do application server documentations always recommend using a reverse-proxy like Nginx? Take a random app server like Gunicorn or a built in server for NPM, what's the rationale behind using Nginx ...
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22 views

Azure Groups identification

I'm sure its been asked but I am not 100% sure how to phrase it for a search. I have a full Azure deployed environment and am currently trying to deploy and application that reports back to cloud ...
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1answer
332 views

NGINX RTMP + shared resource on Google Cloud auto scaling

i'm building a scalable infrastructure for my nginx RTMP server. I've: nginx + arut-rtmp-module + ffmpeg on the server. This is the scheme of the first architecture inside a managed group instance ...
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2answers
130 views

Are oversubscription and overcommitment the same?

I see the terms being used together in the context of QoS and compute resource usage in the cloud, but I am lacking a formal definition of the terms and how they relate. For example, this ...
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35 views

Running many CPU intensive tasks in parallel in the cloud - which AWS product?

I’m developing a machine learning pipeline for training a neural net that will be used alongside a Monte Carlo Tree Search algorithm. I want my AI to play itself tens of thousands time (or perhaps ...
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How to determine how much internet bandwidth my cloud server needs? [duplicate]

I want to rent a server to collect data from a websocket over the internet. I want to do it in a way so that it doesn't get bottlenecked by internet bandwidth even when it's busy. I have the option ...
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2answers
97 views

What are the implications of a cloud instance not being IPv6-supported

I am going to be reserving a cloud server instance. If I am simply pulling data from a websocket and communicating with a normal REST api, does an instance type not supporting IPv6 have any ...
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1answer
33 views

Server cost CPU time vs HDD space [closed]

I was thinking about how apps scale and what ends up costing the most CPU time or HDD space. I know this question is a vague question and depends on the type of app but if anyone has experience with ...
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1answer
99 views

shutting down the google cloud account and project totally, how to save VMs apps and Services?

We have an order to shutdown google Cloud enterprise account now. We were running more than 50 VMs and apps, now the question is how to get these backup'ed and presrve it for future use or may be ...
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13 views

Security groups on cloud computing instance

When assigning security groups to public ip (interface eth1) to my cloud computing instance do I have to assign the same security groups to the private ip (interface eth0) as well?
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1answer
248 views

google compute engine boot disk is full and ssh shell not responding

how to attach with new disk space and extend to file system with gcloud cli. vm instance ssh not responding and i tried all other ways. i have snapshot image of instance disk. please anybody tell me ...
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35 views

How CPU topology affects total instance performance?

I'm trying to create a cloud instance (something like AWS EC2 or GCP compute engine) and I have a choice to configure CPU sockets * cores * hyperthreads which is final instance 'vCPUs' in AWS lingo. ...
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66 views

CORS error when calling AutoMLClient() inside Cloud Fuction

Following this instruction: https://cloud.google.com/functions/docs/writing/http#functions_http_cors-python I can establish an cloud function to handle requests from different domains. However, when I ...
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2answers
29 views

Cloud Computing for HPC

I'm looking into if cloud-computing services (e.g., AWS but others as well) can feasibly supplement the traditional clusters (such as Comet, Stampede2, Pleiades) I've been using to solve fluid ...
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1answer
61 views

How to organize projects in AWS?

In our team, we are using AWS as our main cloud provider and currently, we have 3 projects hosted on their platform. We are about to have 2 more projects in the next weeks, but first, we want to ...
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1answer
52 views

SSH into DCOS master on Azure asks for password

I just set up a DC/OS cluster on Azure. I basically just followed the instructions from the Install Guide. So far so good, everything works as expected. Terraform config used to install DC/OS: ...
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1answer
878 views

Is it possible to Stop and Deallocate Azure VM from the VM itself?

I am trying to stop and Deallocate a linux Azure VM from the script that is running on the VM by sudo halt This terminates the session (ssh if interactive), stops the VM, but does not deallocate ...
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2answers
5k views

What is Load Balancer Warmup?

What exactly is the process of warming up a load balancer? How does it help before a huge load process? How is it different from Simply upscaling a cluster behind the LB beforehand. Do CSPs do ...
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1answer
301 views

Who are the cloud computing “operators” and what do they do? [closed]

I want to refine my understanding of the term "operators" so I can use it properly myself. For example, Stackdriver aggregates metrics, logs, and events from infrastructure, giving developers and ...
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1answer
1k views

I accidentaly enabled the UFW on my Google Cloud Computer

I accidentally enabled the UFW on my Google Cloud Compute debian instance and unfortunately port 22 is blocked now. I've tried every way to go inside the VM but I can't. I'm trying to access through ...
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1answer
614 views

Get “gs_secret_key” and “gs_access_key” values for Google Bucket

I need to create a directory in a Google Cloud Bucket using Ansible. I would like to know where I can find the values to complete "gs_secret_key" and "gs_access_key" to use "gc_storage" module in ...
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1answer
83 views

Understanding Nutanix features [closed]

From a very high level view: Open Stack is sort of framework to manage your cloud but you need to implement things Cloud Stack / Cloud Shift / Rancher are more or less solutions to get your cloud ...
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1answer
579 views

What is the difference between the cloud disks supported by Alibaba Cloud?

When creating an ECS instance on Alibaba Cloud, I often get an option to choose a cloud disk e.g. from Ultra Cloud disk and SSD cloud disk. What is the difference between these cloud disks and what ...
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1answer
590 views

Public IP address in Alibaba Cloud instance

Is it possible to assign public IP address to an instance in Alibaba Cloud that would be visible after running ifconfig And not assigned via NAT. Need this for provisioning K8s cluster and it doesn'...
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0answers
43 views

Jenkins agents on GKE/GCE

I am using Jenkins to build my Angular applications on Google Kubernetes Engine (GKE). At some point I noticed that the builds on GKE take significantly longer than it used to take on my old (private)...
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1answer
22 views

How can I confirm a server instance I have access to truly has provided specifications?

I rented 4 server instances from my friends data center for an extremely cheap price. As advertised, each instance should hold Intel CPUs with 4x cores at 2.6GHz clock frequency each, 8GB of RAM, and ...
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59 views

VM Packing in Cloud Computing

I was reading some paper on Cloud computing which mentions that if we do better VM Packing, then the cost of building the cloud is reduced. From what I understand, it means that somehow size of VMs ...
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3answers
86 views

Best way to Auto Scaling a Customised Debian9 image whenever code base changes in AWS

I triggered an auto scaling group (from launch configuration) with a customised Debian9 image in AWS where I have preinstalled software packages like Apache, Memcache, Chrony along with PHP code base ...
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2answers
2k views

Meltdown & Spectre - Does patching the guest kernel of an unpatched hypervisor prevent cross-VM memory leaks?

24 hours after the wide scale release of the vulnerabilities, Rackspace is silent about Spectre and Meltdown. They do not have a plan for patching all of their Xen hypervisors. All their newer ...
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2answers
468 views

How can i log traffic activity of a GCP instance?

I keep getting warnings from GCP that i have suspicious activity on my GCP instance and they're right. I keep seeing huge traffic going to China in my billing as follows. Compute Engine Network ...
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0answers
58 views

Mounted old disk folder /var/lib/mysql automagically synced up with new active /var/lib/mysql

noob here while working on a production server (old), i messed up a command and lock myself out of the gcloud compute engine instance (I know. dumb, stupid. I deserved them all). I setup a new ...
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133 views

Azure - Data Management Gateway - Endpoint Error

Has anybody tried to setup this Data Management Gateway on-premise with Azure Data Factory? I am following this guide: https://docs.microsoft.com/en-us/azure/data-factory/data-factory-move-data-...
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2answers
106 views

Google cloud disableing ephemeralIP

Is there possibility to turn off globally assigning of ephemeral IPs to instances? I want to have only internal addresses for instances behind nat.
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2answers
2k views

Can I configure non-Google Cloud resources as origin for Google Cloud CDN?

As soon as I proceed to add a new origin for Google CDN distribution, it asks me to choose from load balancers (I would prefer not to create load balancer). Ignoring the fact that I don't want to ...
2
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3answers
674 views

Can we install and run VMware ESXi on a parallels server? [closed]

I would like to install parallels and then install ESxi on top of it to get the distributed storage, Is this possible??. Is there any free tools available in VMWare o do the same?. I'm a newbie, need ...
2
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0answers
38 views

Tradeoffs between cross-cloud and cross-AZ-single-cloud deployments

We have a educational system (federated microservices that are running mostly on AWS EC2, RDS MySQL and a message queue) that is already distributed across regions, primarily for latency hiding, ...
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1answer
1k views

Terraform, ecs service creation fails when using a configured IAM policy

Using Terraform, ecs service creation fails when using a configured IAM policy. Error applying plan: 1 error(s) occurred: * aws_ecs_service.beatthemarket_service: InvalidParameterException: Unable ...
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1answer
619 views

Putting ELB in from of my ECS Cluster / Service

I’m trying to put an ELB in from of my ECS service, using this terraform file But applying it, gives the below error. Any ideas on the setup that I’ve gotten wrong? $ terraform apply ... ...
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1answer
29k views

CentOS 7 Generic Cloud login?

I have an OpenStack cloud and added the CentOS-7-x86_64-GenericCloud-1503 image and it boots just fine, but I do not know how to login. What is the root password? How can I set it? Is there some other ...
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1answer
120 views

Should I regard openstack cloud servers as just another type of virtualization?

If I were to set up physical servers for running a business critical website, I would absolutely build redundancy into that environment. I would strive for no single point of failure and as a minimum ...
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1answer
1k views

Difference between cloud computing , grid computing and parallel computing [closed]

There are many definitions out there on the internet , but I am asking here , just because someone may answer it briefly from his/her practical experience with these technologies. How does cloud ...
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1answer
180 views

Cloud architecture design

I am designing a cloud architecture on AWS for a system processing large number of entities. I hope that this is the correct StackExchange for this question (SO did not seem appropriate to me - feel ...
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1answer
53 views

SSL certs for hosted VMs on a single domain

We have 5 virtual machines on the Google Cloud platform to serve our multi-vendor web store. One domain name and 5 VMs: one for Magento, one for Akeneo, one for MySQL, one for MongoDB and the fifth ...
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1answer
315 views

Can't install openstack kilo, stuck on keystone installation

I'm following this guide to install a testing instance of OpenStack Kilo with a very basic environment in a VirtualBox machine running Ubuntu server 14.04 x64. I've managed to get to the point where ...
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0answers
89 views

configure failover using ha proxy

My Setup is as follows: I have two Samba Servers configured with DRBD, Corosync and Pacemaker. Both these servers are in HA which means when SambaServer1 goes down, data is replicated on ...
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1answer
394 views

Did google cloud have Singapore zone? [closed]

Based on this link Google Cloud Zones I know that Google Cloud only have one Zone in Changhua County, Taiwan. But some post in 2014 Google Cloud Asia Regions note that there are two available ...
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4answers
5k views

What happens when a physical machine fails in a virtual environment? [closed]

I'm getting started with virtualization so bear with me. In virtual environments applications run in a hypervisor's layer. So a single physical machine could have many virtual machines on it running ...
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1answer
461 views

ec2-automate-backup-awscli.sh - Purging is not working?

I have recently implemented a script that creates snapshots of my volumes. I run this script via a cron job which works very well except for the part that deletes snapshots. When I run the command to ...
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1answer
269 views

Where the openstack machine images are stored?

In Openstack cloud whether the machine images are stored inside the database as a blob object or in filesystems? And if images are getting stored in filesystem then which service take care of it, is ...

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