# Indexing with multiple threads resulting in error

**URL:** <https://discuss.elastic.co/t/indexing-with-multiple-threads-resulting-in-error/37304>\
**Category:** Elasticsearch\
**Created:** [December 16, 2015, 6:06am UTC](https://discuss.elastic.co/t/indexing-with-multiple-threads-resulting-in-error/37304 "2015-12-16T06:06:38Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![siddharth\_gupta](https://avatars.discourse-cdn.com/v4/letter/s/dec6dc/32.png) [@siddharth\_gupta](https://discuss.elastic.co/u/siddharth_gupta)\
**Post date:** [December 16, 2015, 6:06am UTC](https://discuss.elastic.co/t/indexing-with-multiple-threads-resulting-in-error/37304/1 "2015-12-16T06:06:38Z")

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Hello,

I am using 10 threads to index 3200000 documents.

When I start the indexing quite frequently I see ' **None of the configured nodes were available**'

However if I use only a single thread everything goes fine without any error.

Can anybody please suggest why this is happening ?

Thanks  
Siddharth

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 5, 2017, 11:30pm UTC](https://discuss.elastic.co/t/indexing-with-multiple-threads-resulting-in-error/37304/2 "2017-07-05T23:30:44Z")

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