# Metricbeat6.4.0 panic when add add\_host\_metadata in configfile **URL:** \ **Category:** Beats\ **Tags:** metricbeat\ **Created:** [September 13, 2018, 6:50am UTC](https://discuss.elastic.co/t/metricbeat6-4-0-panic-when-add-add-host-metadata-in-configfile/148413 "2018-09-13T06:50:41Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![zyshn](https://avatars.discourse-cdn.com/v4/letter/z/cab0a1/32.png) [@zyshn](https://discuss.elastic.co/u/zyshn)\ **Post date:** [September 13, 2018, 6:50am UTC](https://discuss.elastic.co/t/metricbeat6-4-0-panic-when-add-add-host-metadata-in-configfile/148413/1 "2018-09-13T06:50:42Z")
```auto processors: - add_host_metadata: netinfo.enabled: false ``` metricbeat6.4.0 sometimes panic(random time:1hour or 1day), when add add\_host\_metadata in configfile, error like: ```auto fatal error: concurrent map writes /root/goproject/src/github.com/elastic/beats/metricbeat/main.go:34 +0x2f /root/goproject/src/github.com/elastic/beats/metricbeat/mb/module/publish.go:48 +0xda /root/goproject/src/github.com/elastic/beats/libbeat/processors/add_host_metadata/add_host_metadata.go:72 goroutine 90 [running]: runtime.throw(0x27e3a8f, 0x15) /usr/local/go/src/runtime/panic.go:616 +0x81 fp=0xc4208359c8 sp=0xc4208359a8 pc=0x10f99a1 runtime.mapassign_faststr(0x26f5cc0, 0xc420aae0f0, 0x27c59c1, 0x2, 0x27c59c1) /usr/local/go/src/runtime/hashmap_fast.go:703 +0x3e9 fp=0xc420835a38 sp=0xc4208359c8 pc=0x10da7d9 github.com/elastic/beats/libbeat/common.MapStr.Put(0xc420aae120, 0x27c59bc, 0x7, 0x234d420, 0xc4208d3200, 0xc4204b323e, 0 xc4204b3270, 0x8, 0xc42011da80) /root/goproject/src/github.com/elastic/beats/libbeat/common/mapstr.go:174 +0xa6 fp=0xc420835ab8 sp=0xc420835a38 p c=0x144fda6 github.com/elastic/beats/libbeat/processors/add_host_metadata.(*addHostMetadata).loadData(0xc4204882a0) /root/goproject/src/github.com/elastic/beats/libbeat/processors/add_host_metadata/add_host_metadata.go:91 +0x408 fp=0xc420835c78 sp=0xc420835ab8 pc=0x176d548 github.com/elastic/beats/libbeat/processors/add_host_metadata.(*addHostMetadata).Run(0xc4204882a0, 0xc4209f45c0, 0x0, 0xf fffffffffffffff, 0xc420835cd8) /root/goproject/src/github.com/elastic/beats/libbeat/processors/add_host_metadata/add_host_metadata.go:72 +0x2b f p=0xc420835c98 sp=0xc420835c78 pc=0x176d0eb github.com/elastic/beats/libbeat/publisher/pipeline.(*program).Run(0xc420590720, 0xc4209f45c0, 0xc4209f45c0, 0x0, 0x0) /root/goproject/src/github.com/elastic/beats/libbeat/publisher/pipeline/processor.go:167 +0xad fp=0xc420835d30 sp =0xc420835c98 pc=0x15ecd5d github.com/elastic/beats/libbeat/publisher/pipeline.(*program).Run(0xc42030e000, 0xc4209f45c0, 0xc420dd54d0, 0x28746b0, 0 x0) /root/goproject/src/github.com/elastic/beats/libbeat/publisher/pipeline/processor.go:167 +0xad fp=0xc420835dc8 sp =0xc420835d30 pc=0x15ecd5d github.com/elastic/beats/libbeat/publisher/pipeline.(*client).publish(0xc42056a0c0, 0xbede12304b114f3a, 0x24abc43e5ab8, 0 x38a1740, 0x0, 0xc420c69e60, 0x0, 0x0) /root/goproject/src/github.com/elastic/beats/libbeat/publisher/pipeline/client.go:84 +0x474 fp=0xc420835eb0 sp=0x c420835dc8 pc=0x15e4644 github.com/elastic/beats/libbeat/publisher/pipeline.(*client).Publish(0xc42056a0c0, 0xbede12304b114f3a, 0x24abc43e5ab8, 0 x38a1740, 0x0, 0xc420c69e60, 0x0, 0x0) /root/goproject/src/github.com/elastic/beats/libbeat/publisher/pipeline/client.go:63 +0x95 fp=0xc420835f08 sp=0xc 420835eb0 pc=0x15e41a5 github.com/elastic/beats/metricbeat/mb/module.PublishChannels.func1(0xc42056a180) /root/goproject/src/github.com/elastic/beats/metricbeat/mb/module/publish.go:41 +0x125 fp=0xc420835fd8 sp=0xc4208 35f08 pc=0x1abbb35 /root/goproject/src/github.com/elastic/beats/libbeat/publisher/pipeline/client.go:63 +0x95 fp=0xc420835f08 sp=0xc 420835eb0 pc=0x15e41a5 github.com/elastic/beats/metricbeat/mb/module.PublishChannels.func1(0xc42056a180) /root/goproject/src/github.com/elastic/beats/metricbeat/mb/module/publish.go:41 +0x125 fp=0xc420835fd8 sp=0xc4208 35f08 pc=0x1abbb35 runtime.goexit() /usr/local/go/src/runtime/asm_amd64.s:2361 +0x1 fp=0xc420835fe0 sp=0xc420835fd8 pc=0x1129b41 created by github.com/elastic/beats/metricbeat/mb/module.PublishChannels /root/goproject/src/github.com/elastic/beats/metricbeat/mb/module/publish.go:48 +0xda ``` ---
**Author:** ![Mario\_Castro](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mario_castro/32/35107_2.png) [@Mario\_Castro](https://discuss.elastic.co/u/Mario_Castro)\ **Post date:** [September 13, 2018, 9:27am UTC](https://discuss.elastic.co/t/metricbeat6-4-0-panic-when-add-add-host-metadata-in-configfile/148413/2 "2018-09-13T09:27:20Z")
Hi @zyshn 🙂 It seems that you have found a race condition that isn't easily triggered, according to the frequency you were metioning. Will you like to file a new issue in [https://github.com/elastic/beats/issues](https://github.com/elastic/beats/issues) so that we can discuss there about the fix? Thanks you for the thumbs up! ---
**Author:** ![zyshn](https://avatars.discourse-cdn.com/v4/letter/z/cab0a1/32.png) [@zyshn](https://discuss.elastic.co/u/zyshn)\ **Post date:** [September 13, 2018, 9:53am UTC](https://discuss.elastic.co/t/metricbeat6-4-0-panic-when-add-add-host-metadata-in-configfile/148413/3 "2018-09-13T09:53:57Z")
thank you. the bug has fixed a week ago,i just found it in [https://github.com/elastic/beats/commit/8fed0a9c013b26126888104024a572db63c4c81b](https://github.com/elastic/beats/commit/8fed0a9c013b26126888104024a572db63c4c81b). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [October 11, 2018, 9:54am UTC](https://discuss.elastic.co/t/metricbeat6-4-0-panic-when-add-add-host-metadata-in-configfile/148413/4 "2018-10-11T09:54:01Z")
This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.