# Ingest pipeline buffer for incoming documents

**URL:** <https://discuss.elastic.co/t/ingest-pipeline-buffer-for-incoming-documents/313438>\
**Category:** Elasticsearch\
**Tags:** ingest-pipeline\
**Created:** [September 1, 2022, 11:50am UTC](https://discuss.elastic.co/t/ingest-pipeline-buffer-for-incoming-documents/313438 "2022-09-01T11:50:54Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![chapmantrain](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/chapmantrain/32/22646_2.png) [@chapmantrain](https://discuss.elastic.co/u/chapmantrain)\
**Post date:** [September 1, 2022, 11:50am UTC](https://discuss.elastic.co/t/ingest-pipeline-buffer-for-incoming-documents/313438/1 "2022-09-01T11:50:54Z")

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I am investigating using an ingest pipeline for one type of document for my cluster. I am wondering if I have a maintenance or upgrade window or even an unplanned outage does the ingest pipeline have a buffer for that downtime or is that incoming data lost?

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**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [September 1, 2022, 11:52am UTC](https://discuss.elastic.co/t/ingest-pipeline-buffer-for-incoming-documents/313438/2 "2022-09-01T11:52:57Z")

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Ingest pipeline processing is just a step in the processing of a bulk request, so the answer is no. The clients sending data to Elasticsearch need to detect the failure and buffer.

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<div class="post-metadata">

**Author:** ![chapmantrain](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/chapmantrain/32/22646_2.png) [@chapmantrain](https://discuss.elastic.co/u/chapmantrain)\
**Post date:** [September 1, 2022, 11:59am UTC](https://discuss.elastic.co/t/ingest-pipeline-buffer-for-incoming-documents/313438/3 "2022-09-01T11:59:14Z")

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Thanks Christian for the prompt response.

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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:** [September 29, 2022, 11:59am UTC](https://discuss.elastic.co/t/ingest-pipeline-buffer-for-incoming-documents/313438/4 "2022-09-29T11:59:23Z")

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