Is there a tool to test the latency of specific regions?
I have tried the cloudping.cloud but it only test the latency of my local network to other regions.
Is there a way to test latency between Austria to Zurich region? Or Austria to Milan Region?
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I have a doubt regarding regions in google cloud. If I my current location is in Australia I need to opt region near to me for a better performance or I can opt multiple locations. Bit confusing on the regions. Could someone explain on this please?
Opting region near by is one way to get good network performance and low latency. Also if you choose multi region you will get high availability along with better performance it's involved cost more. Choose defense on criticality of application.
Regions: The main purpose is to host applications near to your users to reduce latency and availability .
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Zones: Zone provides geo redundancy used mainly for availability inside regions.
Distribute your resources across multiple zones and regions to tolerate outages. Google designs zones to minimize the risk of correlated failures caused by physical infrastructure outages like power, cooling, or networking. Thus, if a zone becomes unavailable, you can transfer traffic to another zone in the same region to keep your services running. Similarly, you can mitigate the impact of a region outage on your application by running backup services in a different region.
To decrease network latency, you might want to choose a region or zone that is close to your point of service. For example, if you mostly have customers on the East Coast of the US, then you might want to choose a primary region and zone that is close to that area and a backup region and zone that is also close by.
Refer: https://cloud.google.com/compute/docs/regions-zones
What is the best practices for write latency across regions for RDS?
Use case: We have users in both Europe and Cambridge with equal read and write access. The RDS is hosted in US-East, thus write latency from EU to US would be slow.
Would it be to have two separate databases in EU and US or is there any way to use a higher tier instance in US to improve write performance?
RDS doesn't support Multi-Region multi-master setups, i.e. you can't have multiple writer-regions.
You could have a primary region for read/write-traffic and then a cross-region read-replica in the other region.
Your app would have to send all write-activity to the primary region and could read from the local region (with a delay).
If you want to optimize for cross-region latency, you might want to look at Aurora Global Database. It uses dedicated replication infrastructure with typically sub-second latency.
As far as I know the only service that allows multi-region multi-master setups would be DynamoDB Global Tables, but that's a whole different database paradigm.
I setting up an AWS server for gulf countries and it is showing a few options for choosing near locations. So I want to know the nearest country location.
Thanks in advance
Update : With the opening of me-south-1 in Bahrain, it is the natural choice for workloads in the Gulf States.
AWS Mumbai(ap-south-1) would likely be the closest geographically. Frankfurt (eu-central-1) would probably be the second closest.
You can test speeds and latencies to various cloud regions/services with these tools:
speedtest
cloud ping
What exactly is the region in AWS world?
I have to ask which region is the right region for my business.Which factors are important before selecting region in AWS?
An AWS Region is a physical cluster of data centers located in a specific geographic location.
So, the Sydney Region data centers are all located in Sydney and the Oregon Region has data centers all located in Oregon.
A region consists of multiple Availability Zones. An Availability Zone is one or more data centers that contain the physical infrastructure that provides AWS services (eg data, storage, networking). There are very high-speed connections between Availability Zones within a Region.
So, which Region to choose? It should typically be the one closest to your customers (to provide faster response) or perhaps closest to your existing data center if you are connecting it to AWS.
You might want to use multiple data centers so that you have services closest to customers spread around the world, rather than having them all connect back to one location. Or, you might want to use multiple Regions for redundancy in case of failure. (Project Nimble: Region Evacuation Reimagined – Netflix TechBlog)
There might also be legal requirements of which Region to use (based on data governance, privacy laws, etc). You might even choose a Region based on a lower price (USA regions are generally lower cost than others, especially for Internet data transfer costs).
You might also choose a region based upon which services are available: Region Table
See also: Global Cloud Infrastructure | Regions & Availability Zones | AWS
The definition and documentation of AWS Region is stated in the above comments. In summary, AWS Region is a separate geographic area. AWS Region has Availability Zones which are isolated data centers. Availability Zones is used for high availability. There are 2 or more Availability Zones for each region.
Which factors are important before selecting region in AWS?
There are several factors to consider.
Latency - The faster your data center, the better your performance. This link can display the latency between ec2 instances. https://www.cloudping.co/
Cost - Different region has different cost. So far, North Virginia is the cheapest.
AWS Services to use - Not all AWS Services are available in all regions. This link can display the supported services per region. https://aws.amazon.com/about-aws/global-infrastructure/regional-product-services/
There are a number of resources that can help you understand AWS regions, availability zones, and how to architect using them, including:
AWS: Regions and Availability Zones
AWS: Architecting for the Cloud: Best Practices
CloudAcademy: How to Pick the Best AWS Region for Your Workload
I am using AWS RDS to host one of my client's MySQL database. His web server is hosted in a separate hosting company (TurnKey). This site has some 14,000+ unique visitors and ~270,000 requests per day. This is a WordPress driven site.
The question is Even though I am paying only 52 USD for RDS service I am getting some 150 $ bill for data transfer(For about 1560+GB per month). I understand that data transfer outside AWS is costly. I want to know if I host the web site in AWS in the same region (in a m4 or in a ec2), will it reduce the data transfer costs? Or is there any other option I can consider?
Billing Summery
Data Transfer
US East (Northern Virginia) Region - $141.39
RDS Service
US East (Northern Virginia) Region - $52.83
Thanks in advance.
Yes you will not be charged this huge data transfer fee if you host your site on AWS because local AWS network traffic doesn't cost you anything. It should also be a lot faster.