concurrent map

[juliomartinsdev]

i notice this error using v3, is in application with many requests,
i dont know if this issue is releated

Mar 07 09:06:53.283 /workspace/vendor/resty.dev/v3/client.go:2243 +0xb2
Mar 07 09:06:53.283 resty.dev/v3.(*Client).execute(0xc0008b7b88, 0xc00263d688)
Mar 07 09:06:53.283 /workspace/vendor/resty.dev/v3/client.go:2229 +0x5d
Mar 07 09:06:53.283 resty.dev/v3.(*Client).executeRequestMiddlewares(0xc0008b7b88, 0xc00263d688)
Mar 07 09:06:53.283 /workspace/vendor/resty.dev/v3/middleware.go:36 +0x39
Mar 07 09:06:53.283 resty.dev/v3.PrepareRequestMiddleware(0xc0008b7b88, 0xc00263d688)
Mar 07 09:06:53.283 /workspace/vendor/resty.dev/v3/middleware.go:179 +0x79
Mar 07 09:06:53.283 resty.dev/v3.parseRequestHeader(0xc0008b7b88?, 0xc00263d688)
Mar 07 09:06:53.283 /layers/heroku_go/shim/go-path/pkg/mod/golang.org/toolchain@v0.0.1-go1.24.0.linux-amd64/src/internal/runtime/maps/table.go:683 +0x86
Mar 07 09:06:53.283 internal/runtime/maps.(*Iter).Next(0xc0005a9ad0?)
Mar 07 09:06:53.283 /layers/heroku_go/shim/go-path/pkg/mod/golang.org/toolchain@v0.0.1-go1.24.0.linux-amd64/src/runtime/panic.go:1053 +0x18
Mar 07 09:06:53.283 internal/runtime/maps.fatal({0x17db924?, 0x47cfcf?})
Mar 07 09:06:53.283 goroutine 2556616 [running]:
Mar 07 09:06:53.279 fatal error: concurrent map iteration and map write

can any one help here?

[BoneAsh]

@juliomartinsdev Could you please clarify whether you created a single *resty.Request and sent HTTP requests concurrently, or if you used a separate *resty.Request for each request?

[jeevatkm]

@juliomartinsdev Do not reuse the resty.Request instance.

[juliomartinsdev]

i used a single client and used a separate client.R() in each request

[jeevatkm]

Thanks for getting back. Last night, I looked at the code flow based on the above trace log. I didn't get a clue, and also lock and release seems okay. Could you help me with a sample unit test case to reproduce the issue?

[jeevatkm]

@juliomartinsdev ping^