# KV filter don't split on field\_split\_pattern once

**URL:** <https://discuss.elastic.co/t/kv-filter-dont-split-on-field-split-pattern-once/165431>\
**Category:** Logstash\
**Created:** [January 23, 2019, 3:19pm UTC](https://discuss.elastic.co/t/kv-filter-dont-split-on-field-split-pattern-once/165431 "2019-01-23T15:19:57Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![lyubava](https://avatars.discourse-cdn.com/v4/letter/l/dc4da7/32.png) [@lyubava](https://discuss.elastic.co/u/lyubava)\
**Post date:** [January 23, 2019, 3:19pm UTC](https://discuss.elastic.co/t/kv-filter-dont-split-on-field-split-pattern-once/165431/1 "2019-01-23T15:19:57Z")

</div>

Hello, I am trying to use KV filter for my task. It works almost correctly, but i have one mistake in output result.  
Here is the input logs, which i want to analyze:

```auto
sid: S-1-5-21-2526317496-1893015908-99665470-1000, bitness: 64, ilevel: high, sesion id: 1, type: 0, reason: 1, new: 1, dbg: 0, wsl: 0
  curdir: C:\Windows\system32\, cmd: "C:\Windows\system32\WindowsPowerShell\v1.0\PowerShell.exe" -ExecutionPolicy ByPass -File "C:\Program Files\AVAST Software\Avast\setup\UninstallExchange.ps1" "C:\Program Files\AVAST Software\Avast\AsEx.dll"
  fileinfo: size: 473600, easize: 0, attr: 0x20, buildtime: 14.07.2009 09:49:07.000

```

Here is my filter:

```auto
filter {
  kv {
    field_split_pattern => ", "
    value_split_pattern => ": "
  }
}

```

So in output i have this:

```auto
"sid" => "S-1-5-21-2526317496-1893015908-99665470-1000",
"bitness" => "64",
"ilevel" => "high",
...
"curdir" => "C:\\Windows\\system32\\, cmd: \"C:\\Windows\\system32\\WindowsPowerShell\\v1.0\\PowerShell.exe\" -ExecutionPolicy ByPass -File \"C:\\Program Files\\AVAST Software\\Avast\\setup\\UninstallExchange.ps1\" \"C:\\Program Files\\AVAST Software\\Avast\\AsEx.dll\""

```

Why in field KV filter didn't split before cmd? I have right pattern ", " before.  
Please, teel me, what i am doing wrong?

---

<div class="post-metadata">

**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\
**Post date:** [January 23, 2019, 4:44pm UTC](https://discuss.elastic.co/t/kv-filter-dont-split-on-field-split-pattern-once/165431/2 "2019-01-23T16:44:36Z")

</div>

Please either blockquote your text using \</\> in the toolbar above the editing panel, or precede and follow it with lines containing three backticks ```

---

<div class="post-metadata">

**Author:** ![lyubava](https://avatars.discourse-cdn.com/v4/letter/l/dc4da7/32.png) [@lyubava](https://discuss.elastic.co/u/lyubava)\
**Post date:** [January 23, 2019, 5:24pm UTC](https://discuss.elastic.co/t/kv-filter-dont-split-on-field-split-pattern-once/165431/3 "2019-01-23T17:24:31Z")

</div>

Of course, I am sorry. Fixed.

---

<div class="post-metadata">

**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\
**Post date:** [January 23, 2019, 5:35pm UTC](https://discuss.elastic.co/t/kv-filter-dont-split-on-field-split-pattern-once/165431/4 "2019-01-23T17:35:31Z")

</div>

The lack of quotes around the value of curdir (which contains a colon) is confusing the parser. For this specific example you can fix it using

```
mutate { gsub => ["message", "(curdir: )([^,]+),", '\1"\2",' ] }
```

---

<div class="post-metadata">

**Author:** ![lyubava](https://avatars.discourse-cdn.com/v4/letter/l/dc4da7/32.png) [@lyubava](https://discuss.elastic.co/u/lyubava)\
**Post date:** [January 24, 2019, 7:43am UTC](https://discuss.elastic.co/t/kv-filter-dont-split-on-field-split-pattern-once/165431/5 "2019-01-24T07:43:58Z")

</div>

Really, it's works. Thank you very much.  
I could not even think, that problem is in colon.

---

<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 21, 2019, 7:44am UTC](https://discuss.elastic.co/t/kv-filter-dont-split-on-field-split-pattern-once/165431/6 "2019-02-21T07:44:18Z")

</div>

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