# Grok parsing issue

**URL:** <https://discuss.elastic.co/t/grok-parsing-issue/71750>\
**Category:** Logstash\
**Created:** [January 16, 2017, 2:50pm UTC](https://discuss.elastic.co/t/grok-parsing-issue/71750 "2017-01-16T14:50:43Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Jiri\_Kolb](https://avatars.discourse-cdn.com/v4/letter/j/8baadc/32.png) [@Jiri\_Kolb](https://discuss.elastic.co/u/Jiri_Kolb)\
**Post date:** [January 16, 2017, 2:50pm UTC](https://discuss.elastic.co/t/grok-parsing-issue/71750/1 "2017-01-16T14:50:43Z")

</div>

Hello,  
I am logstash newbie. Would be nice if anyone can help I tried it many times, still no luck. I used grok debuger [http://grokconstructor.appspot.com/](http://grokconstructor.appspot.com/) and log is matched without issues. With following settings I am still getting \_grokparsefailure as tag.

Log:  
"\<190\>date=2017-01-16 time=15:38:09 devname=FortiGate-VM64 devid=FGVMEV0000000000 logid=0100032003 type=event subtype=system level=information vd="root" logdesc="Admin logout successful" sn=1484577398 user="admin" ui=http(10.0.0.32) action=logout status=success duration=91 reason=exit msg="Administrator admin logged out from http(10.0.0.32)""

I have added simple custom grok patterns:  
FORTIDATE date=%{YEAR}-%{MONTHNUM}-%{MONTHDAY}  
FORTIHEADER \<%{NUMBER:syslog\_index}\>%{FORTIDATE:date} time=%{TIME:time} devname=%{HOST:hostname} devid=%{HOST:deviceid} logid=%{NUMBER:logid} type=%{WORD:type} subtype=%{WORD:subtype} level=%{WORD:level} vd=\"%{WORD:vdom}

logstash conf:

input {  
udp {  
port =\> 5000  
type =\> syslog  
}  
}

filter {  
grok {  
break\_on\_match =\> true  
patterns\_dir =\> ["/usr/share/logstash/bin/patterns"]  
match =\> [  
"message", "%{FORTIHEADER}"  
]  
add\_tag =\> ["fortigate"]  
}  
}

output {

```
stdout {
	codec => rubydebug
}

```

}

Thank you!

Jiri

---

<div class="post-metadata">

**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\
**Post date:** [January 16, 2017, 2:52pm UTC](https://discuss.elastic.co/t/grok-parsing-issue/71750/2 "2017-01-16T14:52:45Z")

</div>

Just use a kv filter to parse the key/value pairs. Use grok to separate `<190>` from the key/value pairs.

---

<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 13, 2017, 2:52pm UTC](https://discuss.elastic.co/t/grok-parsing-issue/71750/3 "2017-02-13T14:52:54Z")

</div>

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