Kubernetes kind Deployment doesn't allow patch changes in spec.selector.matchLabels, so any new deployments (managed by Helm or otherwise) that want to change the labels can't use the RollingUpdate...

I went to view my repository on Github.com and was presented with a giant pink unicorn and a message saying: No server is currently available to service your request. Does this mean something ...

I have a Google Cloud SQL MySQL 2nd Gen 5.7 instance with 70GB of unused storage. I want to reduce the unused storage of my instance as this is one of the major hosting costs. The only way that I'...

I have a Next.js application that I deploy by running next build next start on the server. While the build is happening, it clears out the files in the .next build folder, so for a few seconds if ...

I've created and deployed a production stack: const app = new cdk.App(); const stack = new cdk.Stack(app, 'myorg-production-api'); Now It's important to change the naming schema, and I need this s...

According to my reading on jboss documentation it says, We define high availability as the ability for the system to continue functioning after failure of one or more of the servers. A part of...

In a project, I'm enabling the cluster autoscaler functionality from Kubernetes. According to the documentation: How does scale down work, I understand that when a node is used for a given time les...

I have a database that is going to experience the integer exhaustion problem that Basecamp famously faced back in November. I have several months to figure out what to do. Is there a no-downtime-r...

According to https://kubernetes.io/docs/tutorials/stateful-application/basic-stateful-set/#scaling-a-statefulset, I would like to ask how to achieve zero-downtime rolling update? I guess here are t...

Yesterday together with the team we were discussing the possibility of using zero downtime deployments to support our single page application. While discussing it we identified one edge case for i...

I want to update an Enum in RDS Mysql and add a value to an column. I have huge data existing in the same table which I want to update. I assume that while updating the schema of the table, the tab...

I've got a Cassandra cluster (3 nodes, all nodes deployed to AWS) that I am trying to migrate over to a DataStax cluster. It's simply time to stop managing these nodes myself. I have multiple prod...

I have a two websites on a VM with WHM/cPanel and MySql. I am looking to move this into Azure and use vertical scaling. Visits to the website are usually stable but three or four times a year ther...

I ask because our search is in a state of flux as we work things out, but each time we make a change to the index (change tokenizer or filter, or number of shards/replicas), we have to blow away th...

Erlang was reported to have been used in production systems for over 20 years with an uptime percentage of 99.9999999%. I did the math as the following: 20*365.25*24*60*60*(1 - 0.999999999) == 0....

I'm launching my own site tomorrow, and I'm expecting a couple hundred visits. I wrote this script based on what PHP.net told me: <? $f = fsockopen("code.jquery.com", 80, $errno, $errstr, 30)...

Is it possible to do something like the Github zero downtime deploy on Heroku using Unicorn on the Cedar stack? I'm not entirely sure how the restart works on Heroku and what control we have over...

I've got a huge InnoDB table(>500 millions rows) which I'd like to partition by hash in order to decrease the index size. I'd like to achieve this with a minimal downtime(e.g 10 minutes is acceptab...

I will be moving Git repositories from an older SCM server to a new one. My main concern (other than fidelity, of course) is to minimize downtime. Here is my plan: On the new machine, clone each ...

Is there a preferred method of gracefully upgrading a web site? I have a completely new code base ready to go on a site, but updating it will take several hours. I don't want the site to be down th...