# Logstash 7.5.1 flood syslog with messages

**URL:** https://discuss.elastic.co/t/logstash-7-5-1-flood-syslog-with-messages/214366
**Category:** Logstash
**Created:** [January 9, 2020, 8:26am UTC](https://discuss.elastic.co/t/logstash-7-5-1-flood-syslog-with-messages/214366 "2020-01-09T08:26:11Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![wga](https://avatars.discourse-cdn.com/v4/letter/w/cc9497/32.png) [@wga](https://discuss.elastic.co/u/wga)
#### Post date: [January 9, 2020, 8:26am UTC](https://discuss.elastic.co/t/logstash-7-5-1-flood-syslog-with-messages/214366/1 "2020-01-09T08:26:11Z")

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After upgrade from 7.5 to 7.5.1 except that all messages which receive from filebeat nodes going to elastic, for some reason start bombing /var/log/syslog with the same information without even to have any of output-syslog plugin. Syslog file growing to fast just for minutes is 2-3GB.  
In log4j.properties I comment console configuration but file still continue to fill itself:

```
rootLogger.level = ${sys:ls.log.level}
#rootLogger.appenderRef.console.ref = ${sys:ls.log.format}_console

```

What should to be the different, before upgrade I didn't have issues at all?  
Configuration of one pipeline:

```
input {
  beats {
    port => 5047
  }
}

filter {
  grok {
    patterns_dir => ["./patterns"]
    match => { "message" => "%{TIMESTAMP_ISO8601:log.timestamp} *%{LOGLEVEL:log.level} *%{JAVACLASS:log.class}" }
  }
}

output {
  elasticsearch {
    hosts => ["https:// ******** /"]
    user => " *****"
    password => " *****"
    index => "dev-testing"
  }
 stdout { codec => rubydebug }
}

```

I have suspicious maybe some of those settings can provoke that action:

```
"slowlog.logstash.codecs.plain" : "TRACE",
"slowlog.logstash.codecs.rubydebug" : "TRACE",
"slowlog.logstash.filters.grok" : "TRACE",
"slowlog.logstash.filters.json" : "TRACE",
"slowlog.logstash.inputs.beats" : "TRACE",
"slowlog.logstash.outputs.elasticsearch" : "TRACE",
"slowlog.logstash.outputs.stdout" : "TRACE"
```

---

<div class="post-metadata">

### Author: ![charlesrg](https://avatars.discourse-cdn.com/v4/letter/c/b5a626/32.png) [@charlesrg](https://discuss.elastic.co/u/charlesrg)
#### Post date: [January 15, 2020, 11:50pm UTC](https://discuss.elastic.co/t/logstash-7-5-1-flood-syslog-with-messages/214366/2 "2020-01-15T23:50:37Z")

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Same problem here, my issue was one of my conf.d having :  
stdout { codec =\> rubydebug }

removed that and was happy

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<div class="post-metadata">

### Author: ![wga](https://avatars.discourse-cdn.com/v4/letter/w/cc9497/32.png) [@wga](https://discuss.elastic.co/u/wga)
#### Post date: [January 16, 2020, 3:23pm UTC](https://discuss.elastic.co/t/logstash-7-5-1-flood-syslog-with-messages/214366/3 "2020-01-16T15:23:18Z")

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@charlesrg, yes that make sense, I forgot that stdout generally use is for plug-in debug 😕

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### Author: ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)
#### Post date: [February 13, 2020, 3:23pm UTC](https://discuss.elastic.co/t/logstash-7-5-1-flood-syslog-with-messages/214366/4 "2020-02-13T15:23:28Z")

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