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FAQs

I use open source Redis. Why should I switch to Redis Cloud?

I use another commercial Redis service. Why should I switch to Redis Cloud?

I am a small Redis user. Why should I switch to Redis Cloud?

Can my Redis database grow infinitely?

What happens when my database fills up?

Will my dataset/setup/endpoints be affected if I upgrade or downgrade my subscription?

Is my data safe and always available?

How can I control access to my resources?

What’s your Service Level Agreement?

How many Redis databases can I create and manage?

Why do you recommend mapping my availability zone
on AWS?

Can I export my Redis data from Redis Cloud?

Can I run Redis Cloud on my own servers?

Are you fully compatible with open source Redis?

Why should I care about Memcached reliability since it is just a cache?

What are your payment schedule and terms?


I use open source Redis. Why should I switch to Redis Cloud?

Redis Cloud overcomes the limitations of open source Redis. It provides scalable Redis today, even for dataset sizes beyond the size of the largest server. Moreover, it scales without the hassle of dealing with nodes and clusters, and while maintaining the same endpoints.

Achieving true high-availability is very easy with Redis Cloud. With a click of a button, you can set up in-memory replication (in the same data center or across data centers), data persistence or remote backups.

Redis Cloud also immunes your Redis dataset from virtual environment noises, resulting in stable and predictable top performance.

And last but not least – the service is fully automated, so you do not need to worry about scaling or recovery from failures.

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I use another commercial Redis service. Why should I switch to Redis Cloud?

Redis Cloud is the only solution in the market offering infinite seamless scalability, true high-availability, stable top performance and zero (hassle-free) management.

A table comparing all available commercial Redis services can be found here.

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I am a small Redis user. Why should I switch to Redis Cloud?

You are probably using one of those small instances to run your Redis and connect it to a small block storage volume (such as a small AWS EBS volume). You should be aware these instances and volumes were not built for the typical high-throughputs and low-latencies of Redis’ use cases. You probably also suffer occasionally from the “noisy neighbor” phenomenon, in which other cloud applications share the same physical server and storage volume with you, making your Redis performance unstable.

Redis Cloud runs your dataset on the strongest cloud servers, so even if your dataset size is just a few megabytes, you enjoy the best performance available today. In addition, we automatically isolate “noisy neighbors,” so your Redis performance is never affected. Read here for more info.

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Can my Redis database grow infinitely?

Our proxy-based architecture and Dynamic Clustering technology were built from the ground up to provide scalable Redis, and to support its commands and data types at any dataset size. All you need to do is select a plan that fits your dataset’s size. If your dataset is expected to grow or occasionally varies in size, we recommend you select our Pay-As-You-Go plan, for which we charge according to your actual consumption of memory in GB/hr.

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What happens when my database fills up?

As detailed in the open source Redis FAQ, under “What happens if Redis runs out of memory?”:

Redis Cloud instances in our fixed-size plans have their maxmemory set to the plan's size. You can easily configure an eviction policy for your instance from your account's console and set it to any of the standard Redis behaviors without interrupting the service. Our Pay-As-You-Go plans let you set any arbitrary value for maxmemory.

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Will my dataset/setup/endpoints be affected if I upgrade or downgrade my subscription?

No. Any changes you make to your subscription are purely administrative and do not affect service to your application in any way. You can downgrade or upgrade your subscription at any time with no downtime.

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Is my data safe and always available?

Absolutely! Redis Cloud and Memcached Cloud each offer a comprehensive suite of high-availability provisions, including in-memory replication (within the same data center or across data centers), persistent storage and backups. Read here for more info.

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How can I control access to my resources?

Our premium plans feature the following access control mechanisms:

We also offer custom plans with SSL authentication and encryption — contact us if you require extra security measures.

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What’s your Service Level Agreement?

Our SLA depends on the plan that you’re using:

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How many Redis databases can I create and manage?

Each subscription plan (except for our free plans) enables multiple dedicated databases, each running in a dedicated process and in a non-blocking manner.

A 1GB plan for example, enables 16 dedicated databases. Read here for more info.

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Why do you recommend mapping my availability zone
on AWS?

The same AWS availability zone name, when shown in different AWS accounts, does not always refer to the same underlying physical infrastructure.

The mapping process lets us unambiguously identify your availability zone, so we can serve your Redis data from the same physical zone, minimizing inter-zone latencies.

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Can I export my Redis data from Redis Cloud?

Absolutely! There is no lock-in with Redis Cloud. With a click of button, you can export your latest RDB backup file from your cloud storage, FTP or HTTP server to any Redis server of your choice.

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Can I run Redis Cloud on my own servers?

No. Redis Cloud is a fully-managed cloud service currently offered on public clouds and PaaS only. However, you are invited to contact us with inquiries concerning your special needs.

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Are you fully compatible with open source Redis?

Yes we are. We contribute extensively to the open source Redis project and employ it in our service and, as a rule, adhere to the open source’s specifications and make every effort to update our service with its latest versions.

That said, some of Redis’ functionality is not applicable in the context of our service - the following details these items:

Lastly, only a subset of Redis’ configuration settings (via CONFIG GET/SET) is applicable to Redis Cloud. Attempts to get or set a configuration parameter that isn’t included in the following list will result in an error:

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Why should I care about Memcached reliability since it is just a cache?

Developers use Memcached because they care about their application performance. However, with unreliable Memcached, you may lose some or all of your Memcached data (part of which may have taken your app hours or days to calculate), due to: (a) a node failure; (b) a scaling event; (c) a software upgrade; or (d) a process restart.

If memory loss occurs, your main database will be overloaded with queries, which may result in dramatic performance degradation or even a complete outage of your app.

Furthermore, many web applications and popular platforms like Magento, Drupal and Joomla store session-cookies in Memcached without backing them up to persistent storage. Session losses due to Memcached failures could have severe implications on your business when users are forced to immediately logout and their shopping carts are flushed away (if you are running an e-commerce site).

Memcached is not just a cache, but rather a cornerstone of your application’s performance. Its reliability should be your concern. Our Memcached Cloud’s in-memory replication capability, storage engine and instant auto-failover mechanism guarantee highly-available Memcached.

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What are your payment schedule and terms?

We accept all major credit cards and our first charge is made upon initial subscription, according to the selected plan cost. Subscription renewal charges are made on the 1st of each calendar month following your subscription date. On the first renewal, you will be credited a pro-rated amount if you signed up part-way through your first month. Metered usage for Pay-As-You-Go plans is charged around the 5th of each following month.

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about us

Redis Labs offers enterprise-class Redis and Memcached for developers. Our fully-managed cloud services - Redis Cloud and Memcached Cloud - deliver top performance in a highly-available, infinitely scalable, predictable and stable manner.

We power tens of thousands of customer apps in multiple cloud environments and enhance use cases such as real time analytics, social app functionality, job management, and geo-search.

Redis Labs has more than 2,800 paying customers and has raised $13M in venture funding from Bain Capital Ventures, Carmel Ventures, and others.

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about us

Redis Labs offers enterprise-class Redis and Memcached for developers. Our fully-managed cloud services - Redis Cloud and Memcached Cloud - deliver top performance in a highly-available, infinitely scalable, predictable and stable manner.

We power tens of thousands of customer apps in multiple cloud environments and enhance use cases such as real time analytics, social app functionality, job management, and geo-search.

Redis Labs has more than 2,800 paying customers and has raised $13M in venture funding from Bain Capital Ventures, Carmel Ventures, and others.