suggestions for solid US managed vps cloud hosting with upgrade path to like 16gb/16vcpu

Hi – We have a few handful of vps cloud3 on knownhost and are super pleased for years and years. But the upgrade path is not there for us a… | Read the rest of

google cloud Stackdriver Metrics to scale an Manage instance group – Regional

What are the Stackdriver Metrics we can use to autoscale Regional Manage instance groups ?
When i check the docs it says
Regional managed instance groups do not support filtering for per-instance metrics.
Regional managed instance groups do not support autoscaling using per-group metrics.

Is that mean I can not use any Stackdriver Metrics other than CPU ?

Google Cloud storage failed at certain files

  1. how to check which folders/files cause my backup failed from the local server to the bucket?
  2. Is there any indicator/email notification if the backup fails?


Exported vmdk disk from google cloud does not work

  1. There is a google cloud. The virtual machine is lifted there.
    I exported VMDK disk locally
  2. I start the disk at home at wmvare player (at windows 10) and virtualboax ( linux manjaro kernel 4.9), it does not work. The black screen does not go on.
  3. turn off virtualization, it works! What could be the problem, is there such an outright thought?

my processor is i7-9750H, other wm’s ubuntu and windows working perfectly.

version control – Questions about cloud hosting for a solo dev

So basically I’m shopping around for the right version control software. Whether free/open-source like SVN, or paid like Plastic, I keep seeing references to cloud hosting, which pretty much always requires some kind of extra subscription.

As someone with a non-technical background, I don’t feel like I have a good grasp on whether or not cloud hosting is even something that I would benefit from as a solo developer. What are the pros and cons?

And even if it’s something I do need, is there a “free” way to go about it?

For example, would it be a valid workflow to install SVN for maintaining a local repository on my computer, and then just manually upload my current project version to GitHub periodically to serve as a sort of “offsite backup”?

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What infra and skills and budget are actually required for high performing a private cloud ?

I read a few threads on cloud computing and came across a few questions.Currently I am familiar with Google cloud,AWS and digtal ocean.Their products and offering are well performed but a bit pricy to use for all kind of projects.Not until the customer bears all the hosting cost.

My preference is to offer a complete blackbox and all in one solution to customers, where I deliver results and they don’t bother about the backend used.

Of course with time I have moved from shared hosting to VPS and now looking forward to Dedicated and Cloud for hosting my projects.

Can anybody help me in chalking out a generic guidelines for cloud transformation ?

What I am looking for ?

  • Self managed system, already have team that has experience and adapt to new infra.
  • Cost controlled system, do not want to pay from tooth for in/out traffic only without having any direct control.
  • No AWS or Gcloud as their per VM pricing makes my projects un-competetive in short and medium terms.
  • Also my customers have issue with privacy and data protection.
  • Majorly I have to deploy web apps, websites, mobile app backends and ERP’s etc on the cloud.
  • Could also later work on providing a PAAS or IAAS for mobile backend or personal cloud to my clients.
  • Looking for a bleading edge tech stack that keeps my backend infra on the higher end of latest technology tricks and techniques.

As currently I was planning for a managed dedicated server, but it just seems like a Big VPS without much control and cost efficiency.

Here my priorities are total control as well as cost efficiency.

CloudStack or OpenStack looks good to give them a try, but need some experienced opinion for below queries.

  • How many dedicated servers or machines (in terms of computing power/tech spec) do I need to actually use them as cloud hosting ?
  • Any method or checklist to calculate minimum or a range for the total cost for a minimum setup, that performs well and can be scaled ?
  • For actual creating a cloud infrastructure do I have to buy in more than 2-3 locations for latency , back up and other cloud features ?
  • How is the security of such personal cloud is ensured, when the servers are globally distributed and very less direct hardware access and interaction.How to make such cloud more secure, comparable to AWS or Google Cloud.
  • Does in the end this approach can prove to be less cost intensive than using any hybrid cloud infra etc or it is just the opposite ?
  • Are the legacy vps and dedicated servers are tech of the past, although those were easy to manage and predict cost to the last cent ?
  • How are the new hosting providers or application developers modernising their infra ? I mean are those people also in the process of chaning their legacy hosting infra to cloud infra ?

I know a bit of more than one query, Thanks in advance.

architecture – Should I deploy redundant SQL database servers in a cloud environment?

As a System Architect I need to deploy a resillient database server in an isolated private cloud.
The cloud is OpenStack with Ceph backend and the Database is SQL.

Is a single database server VM with a local backup sufficient or do I need a pair of database server VMs in active / standby hosted apart so that they don’t share the hardware fault?
The answer must consider the likelihood that a single hardware fault (eg CPU) destroys a running SQL server VM and corrupts both the primary and backup databases preventing automated recovery.


  1. This is NOT about load balancing nor hardening – the load is light and the network is isolated. It IS about automatic recovery from hardware faults.
  2. 10 minute outage is OK, 1 hour is not.
  3. OpenStack Instance HA will automatically create a replacement SQL Server VM away from the hardware fault and mount the database and continue providing service unless both primary and backup databases are corrupt.
  4. The primary and backup databases are each on dedicated virtual volumes, with resillient Ceph backend, so if one filesystem is corrupted the other may not be.

Why do I care?
a) The active / standby is additional complexity
b) Having an extra VM consumes some of the finite CPU and RAM from the private cloud

Thanks to all who participate for your time and energy.

python – Cloud user registration

I developed an app that stores user-generated content in a local sql-lite database.

I would now provide the feature to the user to sync automagically its database with a cloud service. Ideally, I would like to set-up a framework that is easily up-scalableand that could provide a “serious” interface to the external world.

My issue is: I have really and totally NO IDEA on how this should be done. I mean, I am able to write a code in java or python that allows a someone to register to my service using username and password; but I would let it run on my raspberry py on my local network and not expose to the Internet.

I read names online about Django, Flask, Ruby… I have no idea on the differences between all of them and I don’t knbow what’s the best practice to provide such kind of design I would like to create.
Furthermore, I want my app to be able to sync with my service so I suppose that forms to fill are not way to go. I understand that these are web-based methods, so I have to rely on POST and GET methods, so I have to expose some API. But again, I am launching fancy words here and there.

So, question here:

How do I create a cloud-based service that requires user registration to sync user data with a mobile app?

Bonus question: what should I expose/provide to allow 3rd part services like Alexa to access a user database and perform operations on that (like reading it aloud)?

Please, note that also some pointer to keywords to study, or wathever else would be gladly appreciated.

Kind Regards


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