# Why no exception when circuit break is triggered?

**URL:** <https://discuss.elastic.co/t/why-no-exception-when-circuit-break-is-triggered/21724>\
**Category:** Elasticsearch\
**Created:** [January 20, 2015, 2:38am UTC](https://discuss.elastic.co/t/why-no-exception-when-circuit-break-is-triggered/21724 "2015-01-20T02:38:17Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Jinyuan\_Zhou](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jinyuan_zhou/32/90185_2.png) [@Jinyuan\_Zhou](https://discuss.elastic.co/u/Jinyuan_Zhou)\
**Post date:** [January 20, 2015, 2:38am UTC](https://discuss.elastic.co/t/why-no-exception-when-circuit-break-is-triggered/21724/1 "2015-01-20T02:38:17Z")

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The following line indicates, the fieddata would exceeds configured breaker  
indices.breaker.fielddata.limit. which by default is 60% of heap. accroding  
to doc, it should throw exception. But it seems my query returned OK. I  
noticed large amount such quereis eventually leads to OOM error. I am  
using 1.4.0. Is it trying to get around this limit?

[2015-01-20 02:19:38,605][WARN][indices.breaker] [\*\*\*\*\*\*\*\*\*\*\*]  
[FIELDDATA] New used memory 19207691320 [17.8gb] from field [ts] would be  
larger than configured breaker: 19206989414 [17.8gb], breaking

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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 6, 2017, 12:37am UTC](https://discuss.elastic.co/t/why-no-exception-when-circuit-break-is-triggered/21724/2 "2017-07-06T00:37:54Z")

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