# Deprecation log - how to find source?

**URL:** <https://discuss.elastic.co/t/deprecation-log-how-to-find-source/111084>\
**Category:** Elasticsearch\
**Created:** [December 11, 2017, 12:28pm UTC](https://discuss.elastic.co/t/deprecation-log-how-to-find-source/111084 "2017-12-11T12:28:40Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![imehl](https://avatars.discourse-cdn.com/v4/letter/i/8797f3/32.png) [@imehl](https://discuss.elastic.co/u/imehl)\
**Post date:** [December 11, 2017, 12:28pm UTC](https://discuss.elastic.co/t/deprecation-log-how-to-find-source/111084/1 "2017-12-11T12:28:40Z")

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Hi,

I've an ES 5.6 cluster and want to prepare it for an upgrade to 6.

I have multiple types of deprecation logs:

> [WARN][o.e.d.r.RestController] Content type detection for rest requests is deprecated. Specify the content type using the [Content-Type] header.  
> [WARN][o.e.d.c.ParseField] Deprecated field [inline] used, expected [source] instead  
> [WARN][o.e.d.c.ParseField] Deprecated field [valueType] used, expected [value\_type] instead  
> [WARN][o.e.d.r.a.RestFieldStatsAction] [\_field\_stats] endpoint is deprecated! Use [\_field\_caps] instead or run a min/max aggregations on the desired fields.  
> [WARN][o.e.d.c.ParseField] Deprecated field [type] used, replaced by [match\_phrase and match\_phrase\_prefix query]

I know the meaning and possible sources for the logs but now I have to find out where the requests come from exactly (for example the IP) because there are many apps which access ES.

Is there are a more detailed log or something?

Thanks

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<div class="post-metadata">

**Author:** ![jasontedor](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jasontedor/32/66992_2.png) [@jasontedor](https://discuss.elastic.co/u/jasontedor)\
**Post date:** [December 11, 2017, 5:07pm UTC](https://discuss.elastic.co/t/deprecation-log-how-to-find-source/111084/2 "2017-12-11T17:07:01Z")

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At this time there is not, sorry. We have an open enhancement [issue](https://github.com/elastic/elasticsearch/issues/26836) to address this in the future but I do not anticipate action on this issue in the near future.

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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:** [January 8, 2018, 5:07pm UTC](https://discuss.elastic.co/t/deprecation-log-how-to-find-source/111084/3 "2018-01-08T17:07:10Z")

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