# SearchContextMissingException - Duplication at Output

**URL:** <https://discuss.elastic.co/t/searchcontextmissingexception-duplication-at-output/67914>\
**Category:** Logstash\
**Created:** [December 3, 2016, 1:19am UTC](https://discuss.elastic.co/t/searchcontextmissingexception-duplication-at-output/67914 "2016-12-03T01:19:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![gringo](https://avatars.discourse-cdn.com/v4/letter/g/f19dbf/32.png) [@gringo](https://discuss.elastic.co/u/gringo)\
**Post date:** [December 3, 2016, 1:19am UTC](https://discuss.elastic.co/t/searchcontextmissingexception-duplication-at-output/67914/1 "2016-12-03T01:19:10Z")

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Anyone knows what is this?

duplicate org.elasticsearch.search.SearchContextMissingException: No search context found for id

I keep getting this in my logstash when I opened up many indexes on the elasticsearch server. This elasticsearch server is used as the input to my logstash. Data duplication will occur at the output when I see this error.

Elasticsearch Version 2.3.4 (Input Source) (1 node)  
Logstash 2.3.4  
Elasticsearch Version 2.3.4 (Output Source) (4 nodes)

This problem will not appear if I were to have less indexes opened at the input source elasticsearch

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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:** [December 31, 2016, 1:19am UTC](https://discuss.elastic.co/t/searchcontextmissingexception-duplication-at-output/67914/2 "2016-12-31T01:19:10Z")

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Closed on December 31, 2016, 1:19am UTC

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