# Circuit\_breaking\_exception during reindex

**URL:** <https://discuss.elastic.co/t/circuit-breaking-exception-during-reindex/198255>\
**Category:** Elasticsearch\
**Created:** [September 5, 2019, 1:03pm UTC](https://discuss.elastic.co/t/circuit-breaking-exception-during-reindex/198255 "2019-09-05T13:03:16Z")\
**Posts on this page:** 3\
**Page:** 2

<div class="post-metadata">

**Author:** ![HenningAndersen](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/henningandersen/32/48188_2.png) [@HenningAndersen](https://discuss.elastic.co/u/HenningAndersen)\
**Post date:** [October 23, 2019, 10:46am UTC](https://discuss.elastic.co/t/circuit-breaking-exception-during-reindex/198255/21 "2019-10-23T10:46:18Z")

</div>

@tomhe, thanks for sending over the GC logs. They confirm that the heap usage went above 95% - looks like for an extended duration.

I will need to spend some time analysing/absorbing the output. But there is more GC output that could be relevant here and if possible it would be nice to enable following GC logging on the nodes:

```auto
9-:-Xlog:gc*,gc+age=trace,gc+ihop=trace,gc+heap=trace,gc+humongous=trace,gc+phases=trace,safepoint:file=logs/gc.log:utctime,pid,tags:filecount=32,filesize=64m

```

This will produce somewhat more output though it looks like a reasonable amount from my local experiments. It could be advisable to try out on one node first before rolling out on on all nodes (if you are at all in a position where you can enable this).

---

<div class="post-metadata">

**Author:** ![tomhe](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tomhe/32/120065_2.png) [@tomhe](https://discuss.elastic.co/u/tomhe)\
**Post date:** [October 23, 2019, 11:04am UTC](https://discuss.elastic.co/t/circuit-breaking-exception-during-reindex/198255/22 "2019-10-23T11:04:15Z")

</div>

OK, will try on one node first to see how it goes.

---

<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:** [November 20, 2019, 11:04am UTC](https://discuss.elastic.co/t/circuit-breaking-exception-during-reindex/198255/23 "2019-11-20T11:04:35Z")

</div>

Closed on November 20, 2019, 11:04am UTC

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.

[Previous page](https://discuss.elastic.co/t/circuit-breaking-exception-during-reindex/198255.md?page=1)