# 'bin/logstash -f logstash.conf --configtest' takes ages to execute

**URL:** <https://discuss.elastic.co/t/bin-logstash-f-logstash-conf-configtest-takes-ages-to-execute/49191>\
**Category:** Logstash\
**Created:** [May 4, 2016, 2:48pm UTC](https://discuss.elastic.co/t/bin-logstash-f-logstash-conf-configtest-takes-ages-to-execute/49191 "2016-05-04T14:48:52Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![dcollado](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dcollado/32/8332_2.png) [@dcollado](https://discuss.elastic.co/u/dcollado)\
**Post date:** [May 4, 2016, 2:48pm UTC](https://discuss.elastic.co/t/bin-logstash-f-logstash-conf-configtest-takes-ages-to-execute/49191/1 "2016-05-04T14:48:52Z")

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I was testing Logstash 5.0.0-alpha2 in my CentOS Linux release 7.2.1511 (Core) VM with 8 GB RAM and 4 VCPUs.  
I have installed java version "1.8.0\_92"  
Java(TM) SE Runtime Environment (build 1.8.0\_92-b14)  
Java HotSpot(TM) 64-Bit Server VM (build 25.92-b14, mixed mode)

When I execute (with or without the --debug):  
`/opt/logstash/bin/logstash -f /etc/logstash/conf.d/logstash.conf --configtest --debug`  
it takes 4 minutes and 36 seconds to execute. It seems to block mostly at this line:

> config LogStash::Filters::Grok/@overwrite = {:level=\>:debug, :file=\>"logstash/config/mixin.rb", :line=\>"154", :method=\>"config\_init"}

Is this a bug or is there something wrong in my configuration?

My logstash.conf contains:

> input {  
> beats {  
> port =\> 5044  
> }  
> }  
> filter {  
> grok {  
> match =\> { "message" =\> "[%{HTTPDATE:timestamp}] [%{WORD:db\_name}] [%{WORD:log\_level}] [PID:%{WORD:PID}] [%{GREEDYDATA:source\_location}] %{GREEDYDATA:log\_message}"}  
> }  
> }  
> output {  
> elasticsearch {  
> hosts =\> "xxxx.cern.ch:9200"  
> manage\_template =\> false  
> index =\> "%{[@metadata][beat]}-%{+YYYY.MM.dd}"  
> document\_type =\> "%{[@metadata][type]}"  
> }  
> }

---

<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:** [July 6, 2017, 4:59am UTC](https://discuss.elastic.co/t/bin-logstash-f-logstash-conf-configtest-takes-ages-to-execute/49191/2 "2017-07-06T04:59:24Z")

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Closed on July 6, 2017, 4:59am UTC