# Get initial log from Logstash warning

**URL:** <https://discuss.elastic.co/t/get-initial-log-from-logstash-warning/304796>\
**Category:** Logstash\
**Created:** [May 16, 2022, 8:49am UTC](https://discuss.elastic.co/t/get-initial-log-from-logstash-warning/304796 "2022-05-16T08:49:30Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**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:** [May 16, 2022, 5:45pm UTC](https://discuss.elastic.co/t/get-initial-log-from-logstash-warning/304796/4 "2022-05-16T17:45:05Z")

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> [@arazdolski](#):
>
> "error"=\>{"type"=\>"mapper\_parsing\_exception", "reason"=\>"object mapping for [k.v] tried to parse field [v] as object, but found a concrete value"}}}`

See [this](https://discuss.elastic.co/t/getting-illegal-state-exception-error-while-pushing-logs-to-elasticsearch/290029/2) answer. Once you have indexed an document in which [k][v] is an object any event in which [k][v] is text will be rejected.

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_[View the full topic](https://discuss.elastic.co/t/get-initial-log-from-logstash-warning/304796)._