# Error after upgrading 5.2 -\> 5.3 : "Unknown setting 'trim' for kv"

**URL:** https://discuss.elastic.co/t/error-after-upgrading-5-2-5-3-unknown-setting-trim-for-kv/83616
**Category:** Logstash
**Created:** [April 25, 2017, 8:35pm UTC](https://discuss.elastic.co/t/error-after-upgrading-5-2-5-3-unknown-setting-trim-for-kv/83616 "2017-04-25T20:35:34Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![dfinn](https://avatars.discourse-cdn.com/v4/letter/d/8c91f0/32.png) [@dfinn](https://discuss.elastic.co/u/dfinn)
#### Post date: [April 25, 2017, 8:35pm UTC](https://discuss.elastic.co/t/error-after-upgrading-5-2-5-3-unknown-setting-trim-for-kv/83616/1 "2017-04-25T20:35:35Z")

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Looks like I'm hitting this bug:

> <https://github.com/logstash-plugins/logstash-filter-kv/issues/46>

Here's the pertinent part of my config that uses trim:

```
# process key-value data is it exists
if [postfix_keyvalue_data] {
    kv {
        source => "postfix_keyvalue_data"
        trim => "<>,"
        prefix => "postfix_"
        remove_field => ["postfix_keyvalue_data"]
    }

```

I need to help to get around this so I can get back up and running. Looking at the docs for kv it looks like this needs to get updated to either trim\_value or trim\_key but I'm not sure which I should be using here?

Any help would be much appreciated.

---

<div class="post-metadata">

### Author: ![rcowart](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rcowart/32/88091_2.png) [@rcowart](https://discuss.elastic.co/u/rcowart)
#### Post date: [April 25, 2017, 8:44pm UTC](https://discuss.elastic.co/t/error-after-upgrading-5-2-5-3-unknown-setting-trim-for-kv/83616/2 "2017-04-25T20:44:44Z")

</div>

Change this line...

```
trim => "<>,"

```

to...

```
trim_value => "<>,"

```

Rob

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<div class="post-metadata">

### Author: ![dfinn](https://avatars.discourse-cdn.com/v4/letter/d/8c91f0/32.png) [@dfinn](https://discuss.elastic.co/u/dfinn)
#### Post date: [April 25, 2017, 9:04pm UTC](https://discuss.elastic.co/t/error-after-upgrading-5-2-5-3-unknown-setting-trim-for-kv/83616/3 "2017-04-25T21:04:49Z")

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Thanks Rob! That did it.

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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: [May 23, 2017, 9:18pm UTC](https://discuss.elastic.co/t/error-after-upgrading-5-2-5-3-unknown-setting-trim-for-kv/83616/4 "2017-05-23T21:18:35Z")

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