Crash after running a few days about dnsbl_exporter HOT 12 CLOSED

Yeah sorry, it seems it never happened again.

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@lapo-luchini again, sorry for the delay. I made a branch and hopefully included a fix, not sure if you want/can test: #119

I will merge it later and release a new version. If you happen to run into other issues, please run the process with --log.debug. It should help me catch what the problem is. My guess here is that some kind of (temporary?) failure in DNS resolution or record lookup made it crash.

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I'm testing 9088e8b, thanks!

Will report if I find bugs (or it crashes again).

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Whops, sorry, you said to try the branch and I was trying head… switching now to this:

% git checkout origin/fix-nil-pointer
% git describe
v0.6.0-alpha3
% dist/dnsbl_exporter_freebsd_amd64/dnsbl-exporter --log.debug

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Can you share your config?

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I used the full file from matteocorti as rbls.ini and I have two servers in my targets.ini.

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@lapo-luchini looking at this again too. I am assuming the crash still happens. I'll see if I can re-do the code and make it more easier to handle failures.

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https://github.com/Luzilla/dnsbl_exporter/releases/tag/v0.6.0-alpha1

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Happened again (after quite a few straight days of running):

ERRO[430346]
ERRO[431246]
ERRO[431846]
ERRO[432147]
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x465473]

goroutine 257028 [running]:
github.com/Luzilla/dnsbl_exporter/collector.(*Rbl).lookup(0xc0001f76e0, {0xc00002a5d0, 0x12}, {0xc0000293d0, 0xc})
        /home/andxor/dnsbl_exporter/collector/rbl.go:163 +0x36f
github.com/Luzilla/dnsbl_exporter/collector.(*Rbl).Update.func1({0xc00002a5d0, 0x12}, {0xc0000293d0, 0xc})
        /home/andxor/dnsbl_exporter/collector/rbl.go:181 +0x12f
created by github.com/Luzilla/dnsbl_exporter/collector.(*Rbl).Update
        /home/andxor/dnsbl_exporter/collector/rbl.go:176 +0x18a
% git describe
0.5.0-53-g9088e8b

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@lapo-luchini Appreciate the persistence! 💪

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@lapo-luchini Hope no news is good news? 😅

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Yeah sorry, it seems it never happened again.

Thank you!

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