# Grok parser not working

**URL:** <https://discuss.elastic.co/t/grok-parser-not-working/128910>\
**Category:** Logstash\
**Created:** [April 20, 2018, 4:04pm UTC](https://discuss.elastic.co/t/grok-parser-not-working/128910 "2018-04-20T16:04:42Z")\
**Posts on this page:** 8\
**Page:** 1

<div class="post-metadata">

**Author:** ![Maddy\_M](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/maddy_m/32/45638_2.png) [@Maddy\_M](https://discuss.elastic.co/u/Maddy_M)\
**Post date:** [April 20, 2018, 4:04pm UTC](https://discuss.elastic.co/t/grok-parser-not-working/128910/1 "2018-04-20T16:04:42Z")

</div>

Actual Data  
\</\>  
02/05/2016 10:56:50:8125C2453:502014 dcs:1 dcs-\>info:1 info:40 info-\>tina:50  
\</\>

Actual syntax  
\</\>  
%{DATESTAMP:Time}:%{USER:user}:%{INT:gear} dcs:%{INT:dcs} dcs-\>info:%{INT:dcs2info} info:%{INT:info} info-\>tina:%{INT:info2tina}  
\</\>

Debugger is giving correct data but included in logstash throwing error gorkparser failure

filter {  
grok {  
match =\> ["message", "%{DATESTAMP:Time}:%{USER:user}:%{INT:gear} dcs:%{INT:dcs} dcs-\>info:%{INT:dcs2info} info:%{INT:info} info-\>tina:%{INT:info2tina}"]

```
     }

```

Could you please advise?

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<div class="post-metadata">

**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [April 20, 2018, 4:09pm UTC](https://discuss.elastic.co/t/grok-parser-not-working/128910/2 "2018-04-20T16:09:11Z")

</div>

Can you add a stdout filter with a rubydebug codec and show us the resulting event with failure?

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<div class="post-metadata">

**Author:** ![Maddy\_M](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/maddy_m/32/45638_2.png) [@Maddy\_M](https://discuss.elastic.co/u/Maddy_M)\
**Post date:** [April 20, 2018, 4:13pm UTC](https://discuss.elastic.co/t/grok-parser-not-working/128910/3 "2018-04-20T16:13:03Z")

</div>

{  
"@timestamp" =\> 2018-04-20T16:10:58.393Z,  
"beat" =\> {  
"hostname" =\> "LNX215",  
"name" =\> "LNX215",  
"version" =\> "5.0.1"  
},  
"source" =\> "/opt/intraday/dcs0180420105650",  
"message" =\> "2-\>tina:39",  
"tags" =\> [  
[0] "beats\_input\_codec\_plain\_applied",  
[1] "\_grokparsefailure"  
]  
}

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<div class="post-metadata">

**Author:** ![JKhondhu](https://avatars.discourse-cdn.com/v4/letter/j/ed655f/32.png) [@JKhondhu](https://discuss.elastic.co/u/JKhondhu)\
**Post date:** [April 20, 2018, 4:14pm UTC](https://discuss.elastic.co/t/grok-parser-not-working/128910/4 "2018-04-20T16:14:33Z")

</div>

Syntactically incorrect, please try:

```auto
filter { grok { match => { "message" => "%{DATESTAMP:Time}:%{USER:user}:%{INT:gear} dcs:%{INT:dcs} dcs->info:%{INT:dcs2info} info:%{INT:info} info->tina:%{INT:info2tina }" }}}

```

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<div class="post-metadata">

**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [April 20, 2018, 4:14pm UTC](https://discuss.elastic.co/t/grok-parser-not-working/128910/5 "2018-04-20T16:14:47Z")

</div>

Looks like you actually have quite a few tabs in the file, which probably is why it does not match.

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<div class="post-metadata">

**Author:** ![Maddy\_M](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/maddy_m/32/45638_2.png) [@Maddy\_M](https://discuss.elastic.co/u/Maddy_M)\
**Post date:** [April 20, 2018, 4:37pm UTC](https://discuss.elastic.co/t/grok-parser-not-working/128910/6 "2018-04-20T16:37:48Z")

</div>

I think the original message was corrupted. Here is the actual log message. same error. Could you please advise?

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<div class="post-metadata">

**Author:** ![Maddy\_M](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/maddy_m/32/45638_2.png) [@Maddy\_M](https://discuss.elastic.co/u/Maddy_M)\
**Post date:** [April 20, 2018, 4:39pm UTC](https://discuss.elastic.co/t/grok-parser-not-working/128910/7 "2018-04-20T16:39:03Z")

</div>

I wanted to seperate the fields and use the values to prepare the line charts with those values

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<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:** [May 18, 2018, 4:39pm UTC](https://discuss.elastic.co/t/grok-parser-not-working/128910/8 "2018-05-18T16:39:06Z")

</div>

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