What is the maximum number of external IP addresses that can be assigned to a machine on Google Compute Engine? I found the AWS limits but I can't find the same for Google Compute Engine.
the Resource Quotas and Interconnect Quotas do not state any limit for external IP addresses, therefore they are available as good as unlimited, but still may be limited by two factors: a) by the availability of the resource-type in the region and b) how many of them you are able to pay. in case you may wonder how many of them one can assign to a single instance; this might be 4000-5000 (based upon reports), until the network stack becomes unstable vs. the theoretical limit of 4 294 967 294 (- 2). one possibly can only estimate that value, because the hardware configuration also plays a role there; with multiple virtual NIC it should be able to take a multiple of IPs.
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I have one VM Compute Engine to host simple apps. My apps is growing and the number of users too.
Now my users work basicaly from 08:00 AM to 07:00 PM, in this period the usage os CPU and Memory is High and the speed of work is very important.
I'm preparing to expand the memory and processor in the next days, but i search a more scalable and cost efective way.
Is there a way for automatic add resources when i need and reduce after no more need?
Thanks
The cost of running your VMs is directly related to a number of different factors i.e. the type of network in use (premium vs standard), the machine type, the boot disk image you use (premium vs open-source images) and the region/zone where your workloads are running, among other things.
Your use case seems to fit managed instance groups (MIGs). With MIGs you essentially configure a template for VMs that share the same attributes. During the configuration of your MIG, you will be able to specify the CPU/memory limit beyond which the MIG autoscaler will kick off. When your CPU/memory reading goes below that threshold, MIG scales your VMs down to the number of instances specified in your template.
You can also use requests per second as a threshold for autoscaling and I would recommend you explore the docs to know more about it.
See docs
I am a google cloud user which created a cloud HPC system. The web application is really consuming in terms of hardware resources [it's quite common that I have 4/5 N1 instances allocated with 96 cores each for a total of more than 400 cores].
I found that currently in certain zones it's possible to use N2D and C2 instances which are higher in terms of CPU the first ones and dedicated to the computing the latter. Unluckily I can't use these two instances because, for some reason, I have troubles increasing the quota N2D_CPUS and C2_CPUS above the default value of 24 [which is nothing considering my needs].
Can anyone help me?
The only way to increase the quota is to submit a Quota Increase request. Once you submit the request, you should receive an email saying that the request has been submitted and that it is being reviewed.
I'm unable to understand the free bandwidth/traffic allowed in per Google Compute engine instance. I'm using digitalocean and here with every server it provides free bandwidth/transfer e.g with $ 0.015- 1GB/1CPU and 2TB of Transfer is allowed.
Hence is there any free bandwidth per compute instance or google will charge for every bit transferred to/from VM.
As documented on our Network Pricing page, traffic prices depend on the source and destination. There is no "bucket of bits up til x GB" that are free like a cellphone plan or something. Rather certain types of traffic are always free, and other types are charged. For example, anything coming in from the internet. Or, anything to another VM in the same zone (using internal IPs).
If you are in Free Trial, then of course we give you usage credits, so you can use up to that total amount, in dollars, "for free."
Does anyone know that if there is a limit on network traffic among VMs in different data centers in Google Compute Engine?
Specifically, are there any performance limits if VMs in different DCs are frequently (every 5 ms) communicating with each other?
Thanks in advance.
I'm sure that there are some performance limits, but they should be fairly high if you're within the same region. (>100Mbps, possibly >1Gbps) Between regions, bandwidth is likely to be somewhat more variable, but I'd expect it to be >100Mbps on the same continent.
Note that there are also egress fees for traffic between VMs in different GCP zones, so you might want to pay attention to the total data transferred; 130Mbps would be around 1GB every minute, or $6/hour.
If I am within my quota am I guaranteed to be able to have my instance created (assumimg all other inputs are valid) - trying to determine if my quota equates to reserved capacity that I can count on to be available if needed.
Google Compute Engine is engineered for scale, and a fundamental design goal is enabling all users to scale their workloads up (and down) on demand.
However, quotas are not private reservations and instances.insert() can fail in rare cases.