### Author:  [@michael.l](https://discuss.elastic.co/u/michael.l)
#### Post date: [October 22, 2021, 2:33am UTC](https://discuss.elastic.co/t/suddenly-pipeline-got-stuck-with-error-couldnt-find-any-output-plugin-named-http/287376/1 "2021-10-22T02:33:05Z")
We have a simple pipeline that has been running fine for weeks without any errors, and then suddenly stopped outputting events while repeatedly printing this error:
`{"level":"ERROR","loggerName":"logstash.agent","timeMillis":1631284844013,"thread":"Converge PipelineAction::Reload","logEvent":{"message":"Failed to execute action","id":{"metaClass":{"metaClass":{"metaClass":{"id":"metric-tracking","action_type":{"metaClass":{"metaClass":{"action_type":"LogStash::ConvergeResult::FailedAction","message":"Couldn't find any output plugin named 'http'. Are you sure this is correct? Trying to load the http output plugin resulted in this error: Block validation fails for plugin named http of type output,","backtrace":["/usr/share/logstash/logstash-core/lib/logstash/plugins/registry.rb:211:in `lookup\_pipeline\_plugin'","/usr/share/logstash/logstash-core/lib/logstash/plugin.rb:137:in `lookup'","org/logstash/plugins/PluginFactoryExt.java:200:in `plugin'","org/logstash/plugins/PluginFactoryExt.java:137:in `buildOutput'","org/logstash/execution/JavaBasePipelineExt.java:50:in `initialize'","/usr/share/logstash/logstash-core/lib/logstash/pipeline\_action/reload.rb:37:in `execute'","/usr/share/logstash/logstash-core/lib/logstash/agent.rb:334:in `block in converge\_state'"]}}}}}}}}}`
At this point, the pipeline totally stopped working. After restart, it worked again.
The pipeline is very simple:
```auto
input {
file {
id => "tracking_file_logs_buffer"
path => "/mnt/logstash/data/logs/logstash-buffer-*.log"
sincedb_path => "/mnt/logstash/data/plugins/inputs/file/sincedb_tracking"
codec => json
}
}
output {
http {
id => "tracking-output"
http_method => "post"
url => "http://some.url:8084/v1/activity/ingest"
format => json_batch
pool_max => 1
}
}
```
There was nothing obvious that triggered that error. Memory and cpu looked fine.
Any idea what could be the issue? How can we prevent this error from happening again?
Logstash version: 6.8.17
Linux version: 5.10.50-44.132.amzn2.x86\_64
---
### Author:  [@grumo35](https://discuss.elastic.co/u/grumo35)
#### Post date: [October 22, 2021, 7:51am UTC](https://discuss.elastic.co/t/suddenly-pipeline-got-stuck-with-error-couldnt-find-any-output-plugin-named-http/287376/2 "2021-10-22T07:51:37Z")
Hi,
> [@michael.l](#):
>
> Logstash version: 6.8.17
Why not try to update first ? your logstash version is very old this could be a lot of things.
---
### Author:  [@michael.l](https://discuss.elastic.co/u/michael.l)
#### Post date: [October 22, 2021, 8:53pm UTC](https://discuss.elastic.co/t/suddenly-pipeline-got-stuck-with-error-couldnt-find-any-output-plugin-named-http/287376/3 "2021-10-22T20:53:30Z")
@grumo35 Thanks for your reply.
Is version 6.8 really that bad? 6.8.17, in particular, was released only 3 months ago.
We have some other pipelines on 6.8 in the same environment, and we cannot go to version 7 yet.
---
### Author:  [@grumo35](https://discuss.elastic.co/u/grumo35)
#### Post date: [October 25, 2021, 11:55am UTC](https://discuss.elastic.co/t/suddenly-pipeline-got-stuck-with-error-couldnt-find-any-output-plugin-named-http/287376/4 "2021-10-25T11:55:41Z")
Oh i see i didnt pay attention to tailing subversion numbers, there is still 6.8.20 out there but i'm sure the bug i was referencing too came from olders versions or is patched in major 7.0 ...
I really dont know what could cause this issue
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [November 22, 2021, 11:56am UTC](https://discuss.elastic.co/t/suddenly-pipeline-got-stuck-with-error-couldnt-find-any-output-plugin-named-http/287376/5 "2021-11-22T11:56:11Z")
This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.