Cloudflare Developers•14mo ago

I know it isn't many reads, but man when KV is doing hot only reads it is fast

I know it isn't many reads, but man when KV is doing hot only reads it is fast

QyloMc•11/24/24, 5:23 AM

Hlo

julius•11/24/24, 11:32 AM

hey there - has the behavior with KV changed recently? we are getting KV hits for deleted key-pairs

some context:

the key has a cacheTTL of 24h
we delete the key through the REST API
the key is not in the KV if i prefix search the key on the dashbaord
a console.log() after the read in the worker still finds the old row

so I'm thinking either the delete is just taking longer than usual to propagate, or maybe something's changed, cause iirc we got a miss here previously

Jjulius hey there - has the behavior with KV changed recently? we are getting KV hits fo...

Kimitri•11/24/24, 1:54 PM

how can I delete a key ? I just saw in the doc the method put and get

pat me•11/24/24, 5:57 PM

i have 2 questions, full disclosure: i don't understand back end infrastructure too well

1# is kv as secure as d1? like can i store emails as keys on it? is that a good idea?? or will ANYONE be able to retrieve that info? the docs seem to imply it's fairly secure i think

2# how quick are updates if i write into kv? will that happen under 30 mins and be reflected everywhere?

if info about my use case is needed, i want to store a list of digital item's urls or ids (which i will fetch with ajax on client side)
stored as "email (who purchased) : json (nested list of items purchased)"

originally i thought user sign in sign up would be neat but i don't want the responsibility of storing passwords or anything for something as simple as "hey did the user purchase this product fully?", specially because payments will be handled face to face, not digitally and i will have to input emails and purchase list by hand anyway. i think getting email from google sign in or something then fetching the key : value pair seems reasonable and simple to me

Ppat me i have 2 questions, full disclosure: i don't understand back end infrastructure ...

Walshy•11/24/24, 6:42 PM

No one can ever read another persons resources without explicitly being allowed by that person

So, no. No one can read your KV unless you explicitly create like an API for them to do so

It takes up to 60 seconds for new values to be reflected

WWalshy 1. No one can ever read another persons resources without explicitly being allow...

pat me•11/24/24, 6:54 PM

thanks!

Isaac McFadyen•11/25/24, 3:36 AM

By #1 the caveat is that KV values can be viewed on the dashboard, but as Walshy said, they'd need access to your Cloudflare account to do that.

IIsaac McFadyen By #1 the caveat is that KV values can be viewed on the dashboard, but as Walshy...

pat me•11/25/24, 6:54 AM

as long as it's not publicly available like static websites, that's all good yes thanks

1.1.1.1APP•11/27/24, 7:58 PM

DNS over Discord: GitHub

View the DNS over Discord source code on GitHub at https://dns-over-discord.v4.wtf/github

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😈 Donkey 💫•11/28/24, 1:03 PM

is this too much for KV read ops?
data is a json 30KB

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😈 Donkey 💫•11/28/24, 1:05 PM

testing after read: https://blog.cloudflare.com/faster-workers-kv/

this is string value of 1KB. That's a lots

1984 Ford LaserOP•11/28/24, 1:05 PM

Yeah that's abnormal

1984 Ford LaserOP•11/28/24, 1:05 PM

I was skeptical till you sent that second image lol

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😈 Donkey 💫•11/28/24, 1:08 PM

and mixed-data
Never reach any lower than 100ms

1984 Ford LaserOP•11/28/24, 1:09 PM

Where's your nearest PoP?

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😈 Donkey 💫•11/28/24, 1:10 PM

all requests (chart) come from around the world
My local dev is near Singapore (SIN)

11984 Ford Laser I know it isn't many reads, but man when KV is doing hot only reads it is *fast*

1984 Ford LaserOP•11/28/24, 1:11 PM

Okay cool so not localised, absolutely abnormal

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😈 Donkey 💫•11/28/24, 1:31 PM

I admit that more a half are cold reads, but compare to … CDN cache read? That’s too much for KV

1984 Ford LaserOP•11/28/24, 1:31 PM

Even my cold reads have never been higher than 300 or so

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😈 Donkey 💫•11/28/24, 1:35 PM

pat me•12/1/24, 9:22 AM

how do i set the expiry "since modified"? (for a key using put)

or after a certain amount of time has passed since the key was last modified.

https://developers.cloudflare.com/kv/api/write-key-value-pairs/

all i see is expiry at a fixed time since epoch and expiry in seconds from now

JJacob Correct, every time you write to the key and include the `expirationTtl`, it wil...

pat me•12/1/24, 9:28 AM

ohhhhhh i modify the ttl at write time dam, that's a simple way to handle it lol

Ppat me ohhhhhh i modify the ttl at write time dam, that's a simple way to handle it lol

thomasgauvin•12/2/24, 5:44 PM

Glad you found what you were looking for! created a PR to make it easier to find https://github.com/cloudflare/cloudflare-docs/pull/18505

GitHub

Update write-key-value-pairs.mdx by thomasgauvin · Pull Request #18...

Agent Beans•12/4/24, 4:53 PM

Does a KV get erased if its parent worker is redoployed? Is there a way to prevent that?

AAgent Beans Does a KV get erased if its parent worker is redoployed? Is there a way to preve...

Isaac McFadyen•12/4/24, 4:58 PM

It does not, no.

Isaac McFadyen•12/4/24, 4:59 PM

All data will stay in KV unless the namespace is deleted or the data is deleted by you.

IIsaac McFadyen It does not, no.

Agent Beans•12/4/24, 5:00 PM

Okay thanks - I dont think im deleting my files, but they had seemed to be going away on deployment - but ill keep investingating

Update: i was setting expirationTtl

Tthomasgauvin Glad you found what you were looking for! created a PR to make it easier to find...

pat me•12/5/24, 7:46 AM

thanks!

toadfans•12/13/24, 3:08 AM

Hello, is there a KV outage? I'm getting this error:

KV PUT failed: 500 Internal Server Error

KV PUT failed: 500 Internal Server Error

requestId:

8f12b7cdd8abcbee

8f12b7cdd8abcbee

accountId:

75d8d68ecf8f9e8155f1ccc7dad82e00

75d8d68ecf8f9e8155f1ccc7dad82e00

kv id

a9486de811d14c909ec398298d4d392e

a9486de811d14c909ec398298d4d392e

Ttoadfans Hello, is there a KV outage? I'm getting this error: `KV PUT failed: 500 Intern...

Chaika•12/13/24, 3:55 AM

no outage, https://www.cloudflarestatus.com/. I don't see any issue uploading keys either. Did it work on retry? Very rarely I do see PUTs fail in my own stuff, I see one in last 12 hours w/ 7k puts, sane retry policies are always helpful tho

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Keavon•12/14/24, 6:54 AM

Is there any way to duplicate a KV database so I can take my production data and bring it into a separate environment I can safely use for testing?

Keavon•12/14/24, 6:55 AM

Or even to clone my production data down to a local copy?

KKeavon Is there any way to duplicate a KV database so I can take my production data and...

thomasgauvin•12/16/24, 5:39 PM

It's not possible to do this at the moment, the recommendation is to use the REST API or Workers directly in order to migrate the data.

FFuncracker Hey there folks! I finished work on a new scheduled Worker, but am now running ...

DaniFoldi•12/25/24, 5:09 PM

subrequests have their own limit, so the solution you described would work

DaniFoldi•12/26/24, 5:20 PM

yup, you have to add the worker itself as a binding, and then it's the same as invoking another worker

DaniFoldi•12/26/24, 5:20 PM

there's a depth limit, so you can't recurse indefinitely, but I've never hit that accidentally

DaniFoldi•12/26/24, 8:51 PM

yup, RPC (if that's what you mean by function) is also counted as a separate invocation, so fresh 1k

Adam•12/31/24, 12:32 PM

Howdy! I noticed a werid think in the Cloudflare ui for kv pairs. I can see a key in my kv when I page through but when I search for that key it doesn't show. I copy and paste the key from the list (4f1b9e271b72b589). some of the keys work but others don't. Is it possible the key has some kind of hidden character in it?

Adam•12/31/24, 12:37 PM

I just checked and the key is there if I use wrangler!?

maguayo•1/2/25, 8:35 AM

Are KV updates instant? For what I read. I think it take sup to 60 seconds to propagate to other regions, but in the user's region, the Update & Read should be consistent and almost instant?

I know it isn't many reads, but man when KV is doing hot only reads it is *fast*

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I know it isn't many reads, but man when KV is doing hot only reads it is fast