# Logstash fails to start

**URL:** <https://discuss.elastic.co/t/logstash-fails-to-start/261558>\
**Category:** Logstash\
**Created:** [January 19, 2021, 2:32pm UTC](https://discuss.elastic.co/t/logstash-fails-to-start/261558 "2021-01-19T14:32:34Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![karthik\_s2](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/karthik_s2/32/82531_2.png) [@karthik\_s2](https://discuss.elastic.co/u/karthik_s2)\
**Post date:** [January 19, 2021, 2:32pm UTC](https://discuss.elastic.co/t/logstash-fails-to-start/261558/1 "2021-01-19T14:32:34Z")

</div>

When i tired to start with the command **(logstash.bat -f logstash.conf**) in the prompt.

The below output is written and logstash doesn't start.

Using JAVA\_HOME defined java: C:\Program Files\Java\jdk1.8.0\_221;  
WARNING, using JAVA\_HOME while Logstash distribution comes with a bundled JDK  
warning: ignoring JAVA\_OPTS=-Xms64m -Xmx128m -XX:NewSize=64m -XX:MaxNewSize=64m -XX:PermSize=64m -XX:MaxPermSize=64m; pass JVM parameters via LS\_JAVA\_OPTS

below is my conf file.

```auto
  input {
    	file {
    		path => "D://ELK/service.log"
    		start_position=> "beginning"
    		type => "logs"
    	}
    }
    filter {
      grok {
    		match => {"message" => "%{TIMESTAMP_ISO8601:logtime} \[%{NOTSPACE:thread}\] \[%{LOGLEVEL:loglevel}\] %{GREEDYDATA:line}"
    		}  
    	}
    }

    output {
    	stdout { codec => rubydebug }
    }

```

---

<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:** [February 16, 2021, 2:32pm UTC](https://discuss.elastic.co/t/logstash-fails-to-start/261558/2 "2021-02-16T14:32:58Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.