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Error with panos.go functions #24

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Alfredo-Moreira opened this issue Jan 3, 2024 · 0 comments
Open

Error with panos.go functions #24

Alfredo-Moreira opened this issue Jan 3, 2024 · 0 comments

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@Alfredo-Moreira
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Most functions in the file panos.go are instantiated the same way. Specifically this section, using one of functions as example:

_, iCancel := context.WithCancel(ctx)
	defer iCancel()
	var interfaceResponse ManagementInterfaceResponse
	command := "<show><interface>management</interface></show>"
	_, res, errs := r.Get(fmt.Sprintf("%s&key=%s&type=op&cmd=%s", p.URI, p.Key, command)).End()
	if errs != nil {
		return interfaceResponse, checkErrors(errs)
	}

	err := xml.Unmarshal([]byte(res), &interfaceResponse)
	if err != nil {
		return interfaceResponse, err
	}
	return interfaceResponse, nil

Running this on our EKS I'm seeing numerous restarts. In the hundreds.

This is a stacktrace of the errors I'm seeing:

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x4e752a]

goroutine 59092 [running]:
strings.indexFunc(...)
	/usr/local/go/src/strings/strings.go:777
strings.IndexFunc({0x0, 0x3}, 0x9b5ba8)
	/usr/local/go/src/strings/strings.go:764 +0x4a
net/http.validMethod(...)
	/usr/local/go/src/net/http/request.go:826
net/http.NewRequestWithContext({0xa42a18?, 0xc0000ce000}, {0x0?, 0x0?}, {0xc0003e8140?, 0x13b?}, {0x0, 0x0?})
	/usr/local/go/src/net/http/request.go:863 +0xb2
net/http.NewRequest(...)
	/usr/local/go/src/net/http/request.go:831
github.com/parnurzeal/gorequest.(*SuperAgent).MakeRequest(0xc0000e2580)
	/go/pkg/mod/github.com/parnurzeal/[email protected]/gorequest.go:1356 +0x805
github.com/parnurzeal/gorequest.(*SuperAgent).getResponseBytes(0xc0000e2580)
	/go/pkg/mod/github.com/parnurzeal/[email protected]/gorequest.go:1167 +0x2c5
github.com/parnurzeal/gorequest.(*SuperAgent).EndBytes(0xc0000e2580, {0x0, 0x0, 0xc000715bf0?})
	/go/pkg/mod/github.com/parnurzeal/[email protected]/gorequest.go:1083 +0x4f
github.com/parnurzeal/gorequest.(*SuperAgent).End(0xc0000e2580?, {0x0?, 0x13b?, 0x3?})
	/go/pkg/mod/github.com/parnurzeal/[email protected]/gorequest.go:1068 +0x7a
github.airbnb.biz/Airbnb-ITX/panos-exporter/panos.(*PaloAlto).GetDataProcessorsResourceUtilData(0xc0000de480, {0xa429e0?, 0xc000162080?})
	/app/panos/panos.go:559 +0x171
github.airbnb.biz/Airbnb-ITX/panos-exporter/collector.(*DataProcessorResourceUtilCollector).Collect(0xc00054f080, 0x0?)
	/app/collector/data_processor_resource_utilization_collector.go:57 +0xec
github.airbnb.biz/Airbnb-ITX/panos-exporter/collector.(*PanosCollector).Collect.func1({0xa40708?, 0xc00054f080?})
	/app/collector/panos_collector.go:121 +0x6d
created by github.airbnb.biz/Airbnb-ITX/panos-exporter/collector.(*PanosCollector).Collect
	/app/collector/panos_collector.go:119 +0x316

And the error will not occur in only one function like GetDataProcessorsResourceUtilData. I have witnessed it happen in different functions described in the file.

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