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Today we will talk on How to make real #zerodowntime in #Kubernetes during #deployment.

Many of you may think that Kubernetes will do it for you, that it already should do this. Yeah... should, but not doing.

There is an open issue on that, which still not fixed. Which lead to situation that during deployment some part of the requests will return connection error. What we of course don't want especially on #HiLoad projects where this can be critical problem.

But there is a simple #solution for that.

#ANDevHowTo #ANDevHowToKubernetes #k8s
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Today in our everyday adventure for #knowledge we will discuss difference between big and heavy #cluster vs few small ones #sharded by users/etc.

Both of them has their pros and cons, as any #solution you will ever made. So remember to make good #systemdesign you will need to gather #requirements very carefully and #analyse them to understand which parameters a valuable for you and which are not.

#ANDevHowTo #ANDevHowToArchitecture #systemarchitecture #architecture #sharding