# Nil pointer dereference exception in libbeat/processors/add\_kubernetes\_metadata/kubernetes.go:161

**URL:** https://discuss.elastic.co/t/nil-pointer-dereference-exception-in-libbeat-processors-add-kubernetes-metadata-kubernetes-go-161/123500
**Category:** Beats
**Tags:** filebeat
**Created:** [March 12, 2018, 8:31am UTC](https://discuss.elastic.co/t/nil-pointer-dereference-exception-in-libbeat-processors-add-kubernetes-metadata-kubernetes-go-161/123500 "2018-03-12T08:31:37Z")
**Posts on this page:** 4
**Page:** 1

<div class="post-metadata">

### Author: ![okke-formsma](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/okke-formsma/32/28665_2.png) [@okke-formsma](https://discuss.elastic.co/u/okke-formsma)
#### Post date: [March 12, 2018, 8:31am UTC](https://discuss.elastic.co/t/nil-pointer-dereference-exception-in-libbeat-processors-add-kubernetes-metadata-kubernetes-go-161/123500/1 "2018-03-12T08:31:37Z")

</div>

I am seeing an issue in Filebeat 6.2.2. I'm running libbeat in a container on Kubernetes. Every other hour, the process will crash with the following stack trace:

```
panic: runtime error: invalid memory address or nil pointer dereference
	March 11th 2018, 11:51:44.107	167,691	[signal SIGSEGV: segmentation violation code=0x1 addr=0x158 pc=0x13dd8ba]

goroutine 76 [running]:
github.com/elastic/beats/libbeat/processors/add_kubernetes_metadata.(*ContainerIndexer).GetIndexes(0xc42040a1f0, 0x0, 0xc4203ec900, 0xc4204bd620, 0xc4204bd560)
/go/src/github.com/elastic/beats/libbeat/processors/add_kubernetes_metadata/indexers.go:161 +0x3a
github.com/elastic/beats/libbeat/processors/add_kubernetes_metadata.(*Indexers).GetIndexes(0xc4203ec900, 0x0, 0x0, 0x0, 0x0)
/go/src/github.com/elastic/beats/libbeat/processors/add_kubernetes_metadata/indexers.go:76 +0x230
github.com/elastic/beats/libbeat/processors/add_kubernetes_metadata.(*kubernetesAnnotator).removePod(0xc42018e620, 0x0)
/go/src/github.com/elastic/beats/libbeat/processors/add_kubernetes_metadata/kubernetes.go:188 +0x3d
github.com/elastic/beats/libbeat/processors/add_kubernetes_metadata.(*kubernetesAnnotator).(github.com/elastic/beats/libbeat/processors/add_kubernetes_metadata.removePod)-fm(0x0)
/go/src/github.com/elastic/beats/libbeat/processors/add_kubernetes_metadata/kubernetes.go:159 +0x34
github.com/elastic/beats/libbeat/processors/add_kubernetes_metadata.processEvent(0xc4205bded0, 0xc420956060)
/go/src/github.com/elastic/beats/libbeat/processors/add_kubernetes_metadata/kubernetes.go:175 +0x78
github.com/elastic/beats/libbeat/processors/add_kubernetes_metadata.(*kubernetesAnnotator).worker(0xc42018e620)
/go/src/github.com/elastic/beats/libbeat/processors/add_kubernetes_metadata/kubernetes.go:159 +0x26f
created by github.com/elastic/beats/libbeat/processors/add_kubernetes_metadata.newKubernetesAnnotator
/go/src/github.com/elastic/beats/libbeat/processors/add_kubernetes_metadata/kubernetes.go:113 +0x9f7

```

The offending line of code is the following:

> <https://github.com/elastic/beats/blob/8719ad48ceaaa409d27547bd190bc165e5108066/libbeat/processors/add_kubernetes_metadata/kubernetes.go#L161>

Any clue to why this might happen?

---

<div class="post-metadata">

### Author: ![exekias](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/exekias/32/28718_2.png) [@exekias](https://discuss.elastic.co/u/exekias)
#### Post date: [March 12, 2018, 12:19pm UTC](https://discuss.elastic.co/t/nil-pointer-dereference-exception-in-libbeat-processors-add-kubernetes-metadata-kubernetes-go-161/123500/2 "2018-03-12T12:19:19Z")

</div>

Hi @okke-formsma,

Thank you for reporting this! Actually this was a known issue that was recently fixed: [https://github.com/elastic/beats/issues/6372](https://github.com/elastic/beats/issues/6372)

Next version (`6.2.3`) will be released soon, and it will pack a fix for this!

Best regards

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<div class="post-metadata">

### Author: ![okke-formsma](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/okke-formsma/32/28665_2.png) [@okke-formsma](https://discuss.elastic.co/u/okke-formsma)
#### Post date: [March 12, 2018, 12:47pm UTC](https://discuss.elastic.co/t/nil-pointer-dereference-exception-in-libbeat-processors-add-kubernetes-metadata-kubernetes-go-161/123500/3 "2018-03-12T12:47:28Z")

</div>

Hi @exekias,

Thanks for the reply! I hadn't seen that github issue.

Regards

Okke

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<div class="post-metadata">

### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [April 9, 2018, 12:47pm UTC](https://discuss.elastic.co/t/nil-pointer-dereference-exception-in-libbeat-processors-add-kubernetes-metadata-kubernetes-go-161/123500/4 "2018-04-09T12:47:45Z")

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