Top part says:
fatal error: concurrent map writes
goroutine 23673 [running]:
runtime.throw(0x95fc7f, 0x15)
/usr/lib/go/src/runtime/panic.go:566 +0x95 fp=0xc420482708
sp=0xc4204826e8
runtime.mapassign1(0x8cb4c0, 0xc4200e8e10, 0xc420482a88, 0xc420482a68)
/usr/lib/go/src/runtime/hashmap.go:553 +0x2e1 fp=0xc4204827f0
sp=0xc420482708
wservce/models.findSupplierOrBuyer(0xc42038812e, 0x6, 0x0, 0x0,
0xc42073e270, 0xf, 0xc420388123, 0x2, 0xba9ac0, 0xc42051c800, ...)
/home/nupur/golang/code/src/wservce/models/userDashboard.go:153 +0xc07
fp=0xc420482e80 sp=0xc4204827f0
wservce/models.(*UserDashboard).GetDashboardDetails(0xc4203622a0, 0xba9ac0,
0xc42051c800, 0xc42073e270, 0xf, 0x1, 0x125)
/home/nupur/golang/code/src/wservce/models/userDashboard.go:75 +0x14d
fp=0xc420483040 sp=0xc420482e80
wservce/controllers.Request.Dashboard(0xba9ac0, 0xc42051c800, 0xc42073e180,
0xf, 0xc4203880f4, 0x40, 0xc4203880f0, 0x3, 0xc42073e270, 0xf, ...)
/home/nupur/golang/code/src/wservce/controllers/users.go:172 +0x106c
fp=0xc420483410 sp=0xc420483040
wservce/controllers.(*Request).Dashboard(0xc4202b8660, 0x0, 0x0)
<autogenerated>:5 +0x6e fp=0xc420483488 sp=0xc420483410
runtime.call32(0xc4204d09c0, 0xc4205aa060, 0xc420588960, 0x800000018)
On Tuesday, June 27, 2017 at 10:04:06 AM UTC+5:30, Dave Cheney wrote:
>
> Your stacktrace is truncated; the crucial part appears at the top of the
> output starting with
>
> panic:
>
> or
>
> runtime error:
>
> On Tuesday, 27 June 2017 14:31:57 UTC+10, Nupur Bansal wrote:
>>
>> When a load test is run on my service, after about 1000-1500 requests, I
>> get this stack trace. I am unable to resolve why it was generated.
>> Yes, the output from the service is passed to an output channel and is
>> read through that channel.
>>
>> I am doing something like this:
>> package main
>>
>> import (
>> "fmt"
>> //"time"
>> )
>>
>> func myFunc(done chan string) {
>> // Doing something in parallel
>> for i := 0; i < 10; i++ {
>> fmt.Println(i)
>> }
>> fmt.Println("Hey! I do useless stuff!")
>> done <- "I'm done!" // We send a message on the channel
>> }
>>
>> func main() {
>> done1 := make(chan string)
>> done2 := make(chan string)
>> go myFunc(done1)
>> go myFunc2(done2)
>> msg := <-done1
>> msg2 := <-done2
>> fmt.Println(msg, msg2)
>>
>> fmt.Println("Message received, you were indeed useless..")
>> }
>>
>> func myFunc2(done chan string) {
>> // Doing something in parallel
>> for i := 10; i < 20; i++ {
>> fmt.Println(i)
>> }
>> fmt.Println("Hey! Baby!")
>> done <- "I'm again done!" // We send a message on the channel
>> }
>>
>>
>> On Thursday, June 22, 2017 at 8:09:33 PM UTC+5:30, Ian Lance Taylor wrote:
>>>
>>> On Wed, Jun 21, 2017 at 10:49 PM, <nupur....@indiamart.com> wrote:
>>> >
>>> > I am getting the following error when my services are being load
>>> tested.
>>> > I am new to goroutines and may be missing something in my
>>> implementation.
>>> > My service on being hit is running 2 goroutines that call an http
>>> request.
>>> > After both return , the response from both http requests is returned
>>> into a
>>> > channel.
>>> > What could be the possible reason of the following stack trace of
>>> error??
>>>
>>> What caused the stack trace? I would have expected to see something
>>> at the start saying why it was generated, but I didn't.
>>>
>>> At first glance it looks like you have a deadlock somewhere. Is there
>>> something reading from the channels?
>>>
>>> Ian
>>>
>>
--
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