Unable to comply with mongodb 4.2.2, error: panic: runtime error: invalid memory address or nil pointer dereference

[Atangwy]

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x508228]

goroutine 32 [running]:
panic(0x73d340, 0xc42000a0e0)
/usr/local/go/src/runtime/panic.go:500 +0x1a1
github.com/dcu/mongodb_exporter/collector.(*PreloadStats).Export(0x0, 0xc42010c4e0)
/Users/dc/code/go/src/github.com/dcu/mongodb_exporter/collector/metrics.go:363 +0x38
github.com/dcu/mongodb_exporter/collector.(*ReplStats).Export(0xc4202875c0, 0xc42010c4e0)
/Users/dc/code/go/src/github.com/dcu/mongodb_exporter/collector/metrics.go:352 +0x90
github.com/dcu/mongodb_exporter/collector.(*MetricsStats).Export(0xc4201ebdc0, 0xc42010c4e0)
/Users/dc/code/go/src/github.com/dcu/mongodb_exporter/collector/metrics.go:435 +0x4c7
github.com/dcu/mongodb_exporter/collector.(*ServerStatus).Export(0xc4200f28c0, 0xc42010c4e0)
/Users/dc/code/go/src/github.com/dcu/mongodb_exporter/collector/server_status.go:111 +0x1f9
github.com/dcu/mongodb_exporter/collector.(*MongodbCollector).collectServerStatus(0xc4200f4500, 0xc4200ddd40, 0xc42010c4e0, 0x7235e0)
/Users/dc/code/go/src/github.com/dcu/mongodb_exporter/collector/mongodb_collector.go:85 +0xe3
github.com/dcu/mongodb_exporter/collector.(*MongodbCollector).Collect(0xc4200f4500, 0xc42010c4e0)
/Users/dc/code/go/src/github.com/dcu/mongodb_exporter/collector/mongodb_collector.go:64 +0x2d4
github.com/dcu/mongodb_exporter/vendor/github.com/prometheus/client_golang/prometheus.(*Registry).Gather.func2(0xc4200ef540, 0xc42010c4e0, 0x928900, 0xc4200f4500)
/Users/dc/code/go/src/github.com/dcu/mongodb_exporter/vendor/github.com/prometheus/client_golang/prometheus/registry.go:433 +0x63
created by github.com/dcu/mongodb_exporter/vendor/github.com/prometheus/client_golang/prometheus.(*Registry).Gather
/Users/dc/code/go/src/github.com/dcu/mongodb_exporter/vendor/github.com/prometheus/client_golang/prometheus/registry.go:434 +0x326

[rkm]

Hi, I'm also seeing this. Is there a fix available?

[WilliamThh]

+1

[rkm]

Seems like this project is no longer under development. I'm planning migrating to this fork: https://github.com/percona/mongodb_exporter

[liying6600]

+1

[jnet06]

+1

[ShawnGoethe]

4.2.6 also has the same problem , someone know how to solve it?
cause we can't downgrade our mongo version

[mongsil1025]

just like @rkm said, try use mongodb_exporter that percona made
I had same error, after switching exporter from dcu to percona, it solved

[rgaufman]

+1 Not getting much data, only Oplog lag and getting the same error.

Going to try the fork thank you! (https://github.com/percona/mongodb_exporter)

[hloeung]

Looks like it might be similar to #127 with PR #128 fixing it.