# Translate filter

**URL:** <https://discuss.elastic.co/t/translate-filter/56359>\
**Category:** Logstash\
**Created:** [July 26, 2016, 7:01am UTC](https://discuss.elastic.co/t/translate-filter/56359 "2016-07-26T07:01:33Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![Kishore](https://avatars.discourse-cdn.com/v4/letter/k/8edcca/32.png) [@Kishore](https://discuss.elastic.co/u/Kishore)\
**Post date:** [July 26, 2016, 7:01am UTC](https://discuss.elastic.co/t/translate-filter/56359/1 "2016-07-26T07:01:33Z")

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how to match multiple fields using translate filter?

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [July 26, 2016, 7:29am UTC](https://discuss.elastic.co/t/translate-filter/56359/2 "2016-07-26T07:29:23Z")

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Please provide more information on what you are trying to achieve.  
What do you mean by [quote="Kishore, post:1, topic:56359"]  
multiple fields  
[/quote]

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**Author:** ![Kishore](https://avatars.discourse-cdn.com/v4/letter/k/8edcca/32.png) [@Kishore](https://discuss.elastic.co/u/Kishore)\
**Post date:** [July 26, 2016, 9:19am UTC](https://discuss.elastic.co/t/translate-filter/56359/3 "2016-07-26T09:19:07Z")

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I want to generate an alert if there is any change in User Country from the below mentioned scenario.

Log looks like below:  
Jul 25 07:18:24 ip-10-129-23-37 openvpn[69098]: kishore/170.24.6.84:19412 MULTI\_sva: pool returned IPv4=13.24.129.30, IPv6=(Not enabled)

I was able to capture Username: kishore and Country Name: India/USA from the above log to store in the Dictonary file to match, i am trying to match both fields in the log if log occurs second time.

If i could be able to match and find there is any change in Country , i want to generate an alert.

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [July 26, 2016, 9:58am UTC](https://discuss.elastic.co/t/translate-filter/56359/4 "2016-07-26T09:58:05Z")

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You are better off using Alerting (Watcher) or similar.

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**Author:** ![Kishore](https://avatars.discourse-cdn.com/v4/letter/k/8edcca/32.png) [@Kishore](https://discuss.elastic.co/u/Kishore)\
**Post date:** [July 26, 2016, 10:51am UTC](https://discuss.elastic.co/t/translate-filter/56359/5 "2016-07-26T10:51:56Z")

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Else can you please suggest me that how to merge two fields

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**Author:** ![DiscussBuster](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/discussbuster/32/11042_2.png) [@DiscussBuster](https://discuss.elastic.co/u/DiscussBuster)\
**Post date:** [July 27, 2016, 3:05am UTC](https://discuss.elastic.co/t/translate-filter/56359/6 "2016-07-27T03:05:33Z")

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> [@Kishore](#):
>
> how to merge two fields

filter {  
mutate {  
add\_field =\> {  
"new\_field" =\> "%{field1} %{field2}"  
}  
}  
}

Hope this helps!

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**Author:** ![Kishore](https://avatars.discourse-cdn.com/v4/letter/k/8edcca/32.png) [@Kishore](https://discuss.elastic.co/u/Kishore)\
**Post date:** [July 28, 2016, 4:59am UTC](https://discuss.elastic.co/t/translate-filter/56359/7 "2016-07-28T04:59:59Z")

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Thanks Buster.

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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:** [July 6, 2017, 4:46am UTC](https://discuss.elastic.co/t/translate-filter/56359/8 "2017-07-06T04:46:10Z")

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