Denigma is an AI that explains code in understandable English. Test it for yourself and tell me what you think Computer Science

I have been reading recently on how distributed systems and most sources insisted on the fact that when having multiple nodes dealing with each other in a system, their clock must be synced to keep a correct timestamp on all effected actions across the system, but i still didn't understand this precisely and i believe that's cause i'm having the wrong mental examples:

for example at the start i imagined as if we have 3 nodes, A, B and C, if A and B each send a request to C, the requests of each node to C will reach at t1 and t2 in respect to node C, which can be ordered since either t1 is greater or lesser than t2 which clearly doesn't require any syncing of clock between the nodes.

After a couple of thought i said maybe i'm not having the right example and came up with new one, for example if each node has a copy of a database, if an insert operation is applied on both node A and B separately then the other nodes need to be updated, so here having synced time between the nodes would make sense since ordering is important and we clearly need to sync the times of the 2 nodes in order to know which insert was performed before the other in order to update our databases properly but then after finishing this part i found out there is another type of clock called "logical clock" which is used to order the operations in a distributed system cause the physical clock isn't enough to do that....

In short my questions are:

1-why clock synchronization?

2-what are some clear practical examples when syncing physical clocks is necessary

3- why logical clocks? what are examples when physical clock alone isn't enough to order our events in a system?

any useful resources that explains this in details are welcomed too, thanks in advance.

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Get code for ML/AI papers anywhere on the internet (Google, Arxiv, Twitter, Scholar, and other sites)! ❤️

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Mindcontrol Brainwave technology today

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I'm building a python library for efficient KNN search using vantage point trees

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https://github.com/pablocael/pyvptree

Still working on it, if anyone gets interested will be welcome. Its already functional, but lots of things I still want to add.

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Monday, November 29, 2021

Denigma is an AI that explains code in understandable English. Test it for yourself and tell me what you think Computer Science

Denigma is an AI that explains code in understandable English. Test it for yourself and tell me what you think Computer Science

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