jkodumal

6 ms·

1.
by jkodumal 5y ago
Not quite a Saab 900, but perhaps the Bollinger B-1? https://bollingermotors.com/bollinger-b1/
2.
by jkodumal 5y ago
We've been using Sleuth at LaunchDarkly as a single pane of glass for all changes going out into production. The addition of DORA metrics is exciting-- as an engineering leader, Accelerate ( https://itrevolution.com/acce
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by jkodumal 10y ago
JSON Patch ( http://jsonpatch.com/ ) also uses it.
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by jkodumal 10y ago
There's VSCO, Fluid, Roofstock, LaunchDarkly, and Uber coming soon. There's probably a few more great companies that I'm forgetting.
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by jkodumal 10y ago
Fun fact-- it was started by one the founders of HipChat.
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by jkodumal 10y ago
That's mostly right. We don't use ES as a primary datastore, though.
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by jkodumal 10y ago
I mentioned this briefly in the article, but we thought about doing something with Lambda + API Gateway. But doing the math, 5k RPS pushed through API Gateway is about $1500 daily just to authenticate.
8.
by jkodumal 10y ago
We've thought quite a bit about how to make this work as a service. The key to our architecture is that evaluating a feature flag for a user does not involve a remote call. We make that work by embedding a rule evaluation engine in our
9.
by jkodumal 10y ago
We had a lot of operational experience with Mongo from our previous jobs at Atlassian, and started out storing almost everything in Mongo. As we scaled out, we migrated all of our high volume data into other stores-- analytics into DynamoDB
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by jkodumal 10y ago
I think it depends on the workload. Serving 4.6k static pages per second, cached on a CDN, is not too difficult. However, handling an analytics workload of 4.6K RPS is a little harder.
11.
by jkodumal 10y ago
I was being cheeky :) Events are stored in DynamoDB. We use mongo for "core" data like accounts, feature flags, etc, but none of the high throughput stuff touches MongoDB.
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by jkodumal 10y ago
For temporary feature flags, we try to clean up as soon as possible. As part of the rollout plan for a new feature, we'll have defined what metrics we're trying to achieve, and once we're confident that we've met those
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by jkodumal 10y ago
Of course-- we have a dogfood instance of LaunchDarkly. We use LD as our plan permissioning system (the plans you see on our pricing page are managed by LD). We also use it for ops-- we migrated a key piece of our analytics infrastructure o
14.
by jkodumal 10y ago
Our goal is to build a developer-focused platform that gives teams the ability to adopt feature flags as a core part of their dev cycle-- including pretty much all of the use cases described in Fowler's article (ops, permissioning, etc
15.
by jkodumal 10y ago
We do have some features to help manage the lifecycle of feature flags. For example, we can determine when a flag has been "flipped on" for everyone, and notify you that it's time to remove it. We can also determine that a fl
16.
by jkodumal 11y ago
We've been using DeployHub at LaunchDarkly for a bit now, and it's a great tool to have in our arsenal. The thing I like about it is that it focuses on doing one thing well. Too many tools in this space try to control the deploy p
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by jkodumal 11y ago
Co-founder of LaunchDarkly here-- we're dropping our startup package to $9 / month in the next week. Come check us out.
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by jkodumal 11y ago
Thanks for the shout-out! One of the cool things about LaunchDarkly is that you can use it out-of-the-box without needing to provision any additional infrastructure. By default, the SDKs use server-sent events to push feature flags to an in
19.
by jkodumal 11y ago
We do have multiple feature flags in place at once. Our dogfood server (we use LaunchDarkly on LaunchDarkly) has about 30 feature flags going at any given time, and we're a relatively small team (still one standup). For the most part,
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by jkodumal 11y ago
I haven't heard of module flag-driven development-- would love to hear more details. We manage the cleanup issue by defining a "removal branch" that cleans up the feature flag at the same time the feature flag is introduced.
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by jkodumal 11y ago
CTO of LaunchDarkly here. We kind of embrace it a little bit-- locavore booleans as a service. But the real power behind the idea is not the ifdef piece, it's the idea of dynamic, context-aware configuration. You've got a user-fr