When we use cache (memory, redis, both of them), and run GOMAXPROCS=2, we see next:

1. 50 request per second
2. 8 core 100% loading

Then, we turn off cache and see:

1. 8000 request per second
2. 8 core 50% loading

???

I have cloned your project to run an example, but I faced an error cannot found the param source. Can help me fix it

Is there a way to limit the parameters e.g for resizing?
Otherwise one could hammer the server by iterating through all kind of pixel combinations.

when i use advanced demo to run is ok,
but browse the url like localhost:8080/image/1.jpg
the result is : invalid param "path": unknown image "image/1.jpg"
so,please tell me how to use advanced demo
if i want to use graphicsmagick,how to use
thank you!

this not works:

r := gin.New()
r.GET("/imgs/1.png", gin.WrapH(newImageHTTPHandler()))

https://iiif.io/

would be nice to support it.

Hi Pierrre,

I'm a golang/devops newbie.

I have a Node JS web-application and chatbot that uses this repository as the golang image server to handle all the images processing (with file cache system).

The image server is deployed in 2 instances and load balanced.

I predict that my current setup serves/handles about ......... 500,000 to 1,000,000 images/requests per day in various sizes ... Hard to tell what the number is exactly.

About 3 weeks ago, I noticed that a lot of my images were loading extremely slow and turning up broken. At that point I upgraded both my instances from micro to 1 vCPU, 3.75 GB mem. That actually solved the problem easily.

Fast forward to now, I'm starting to notice some slow loading images again and saw the broken images issue once or twice only.

Could I please get some advice and tips from you for dev-ops and scaling?

I have never really had to handle scaling before and I'm not sure how and what data to look at to measure if my instances' resources are sufficient.

For example, this may sound really dumb but when I look at the monitoring section in Google Cloud Platform, the CPU only peaks at 3% to 4% max, and I'm unsure if I'm looking at the right numbers.

Thank you kindly in advance.

do you have a script to install the graphicsmagick ?
I could not see one in the travis file, so wondering how to have an automated setup

When I use the file cache option, IF my instance runs out of space, what will hapepn? Does your server automatically delete files to free up disk space?

System Info

• OS: Windows10
• Go version: go1.10.1 windows/amd64
• GOPATH: C:\projects
• GOROOT: C:\Go\
• DEP: dep
• PROJECT NAME: image

Expected Bahavior

Server started

Actual Behavior

unexpected directory layout:
import path: github.com/pierrre/imageserver
root: C:\projects\src
dir: C:\projects\src\image\vendor\github.com\pierrre\imageserver
expand root: C:\projects\src
expand dir: C:\projects\src\image\vendor\github.com\pierrre\imageserver
separator: \

Description

I tried your demo https://github.com/pierrre/imageserver/blob/master/examples/simple/simple.go with dep instead of go get, and this error happend when I tried to testrun.

This only happens when I use dep, and imageserver is under vendor folder.
It works when I use go get, but I don't see why it doesn't work anymore when I use dep.

First off, kudos for the awesome work.

Is there a way to use this with S3 bucket ? Something like a CDN server.

Example flow:

1. When user goes to:

http://localhost/path/to/s3/file.jpg?width=100&height=200

2. The server then downloads the file from S3, applies the given transformations and outputs the final image's buffer in response.

Hi! Thanks for this repo, I'm trying to learn Go so maybe it's my fault but I'm struggling with an error.

I cloned the repo in the folder where I have Go projects and I can run:
go run simple.go and this is working:
http://localhost:8080/?source=https://www.google.co.uk/images/srpr/logo11w.png

But if I try to add a parameter:
http://localhost:8080/?source=https://www.google.co.uk/images/srpr/logo11w.png&width=200

I receive Internal Server Error

How can I debug this?

Go 1.3 on OSX 10.9.4

Many thanks

Hi, the project is awesome and I like it very much. I want to use it as my image server, however, I found all the images are loaded from a special folder naming testdata. I am wondering How can I custom some codes to make it possible that I can totally use the project as an image server including getting images from a custom folder on my disk.

we use Flynn for our servers. As I'm not an expert when it comes to Go, how can we deploy this app? is there a tutorial?

is plan support convert pdf to image?

Hi, how can I setup CORS without modifying the newImageHTTPHandler() function?

Hi Pierrre,

I would like some help deploying a golang image server using your package to the Google App Engine.

Problem is, App Engine rejects the use of sockets. I think in order to rectify the issue, "google.golang.org/appengine/socket" package is necessary.

I'm trying to follow this github issue to fix the issue: go-sql-driver/mysql#457

"google.golang.org/appengine"
"github.com/go-sql-driver/mysql"
"google.golang.org/appengine/socket"

dial := func(addr string) (net.Conn, error) {
        return socket.Dial(appengine.NewContext(r), "tcp", addr)
    }

mysql.RegisterDial("external", dial)

However, I'm not sure how I could get access to the http request from where the Redis socket.Dial() is called.

in Windows Server 2012 Failure to perform normally time.LoadLocation("GMT")

The error is as follows：

UTC open C:\Go/lib/time/zoneinfo.zip: The system cannot find the path specified.

And I found your questions at go's issues，But our system is different

I found in the test that the program can be used normally by modifying imageserver/http/util.go/GMT to UTC. Therefore, if the GMT in the source code is changed to UTC, is this correct? I hope to get your suggestion?

//src
// var expiresHeaderLocation = getTimeLocation("GMT")
//me code
var expiresHeaderLocation = getTimeLocation("UTC")

Does it have an stand alone server?

Can I use ssl on a direct configuration or I need to use a proxy like ngnix?

Thank you.

提示-invalid param "path": unknown image

Hello there, nice server !

Would that be possible to hotlink images to cache ?

Something like

http://fuckingfrogs.fr:8080/?source=http://stock.wikimini.org/w/images/b/b5/Poney_shetland-9380.jpg

that would make the server download the image only on the first hit and then cache it ?

Cheers !