# List of critical error messages (to look for in ES logs)?

**URL:** <https://discuss.elastic.co/t/list-of-critical-error-messages-to-look-for-in-es-logs/31270>\
**Category:** Elasticsearch\
**Created:** [September 28, 2015, 3:35pm UTC](https://discuss.elastic.co/t/list-of-critical-error-messages-to-look-for-in-es-logs/31270 "2015-09-28T15:35:39Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![kjhosein](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kjhosein/32/5049_2.png) [@kjhosein](https://discuss.elastic.co/u/kjhosein)\
**Post date:** [September 28, 2015, 3:35pm UTC](https://discuss.elastic.co/t/list-of-critical-error-messages-to-look-for-in-es-logs/31270/1 "2015-09-28T15:35:39Z")

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Hello all - Is there a list of error phrases or fragments that Elasticsearch logs (in /var/log/elasticsearch/\*) that I can monitor for? I'd just like to feed a short list of critical messages to my monitoring agent's (Check-MK in my case) log-watching capability.

I know there are more sophisticated ways of performing this function, but want to keep it simple and use my existing toolset.

If there isn't a list anywhere, I'd like to add my vote to create one.

[I've tried searching for this, but it's a tough thing to come up with the right search terms!]

Thanks!

\_Khalid

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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:** [July 5, 2017, 11:47pm UTC](https://discuss.elastic.co/t/list-of-critical-error-messages-to-look-for-in-es-logs/31270/2 "2017-07-05T23:47:43Z")

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Closed on July 5, 2017, 11:47pm UTC