# Unknown error message while opening Monitoring **URL:** \ **Category:** Elasticsearch\ **Created:** [July 17, 2016, 1:41pm UTC](https://discuss.elastic.co/t/unknown-error-message-while-opening-monitoring/55693 "2016-07-17T13:41:26Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![gupta.yuvraj](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gupta.yuvraj/32/7550_2.png) [@gupta.yuvraj](https://discuss.elastic.co/u/gupta.yuvraj)\ **Post date:** [July 17, 2016, 1:41pm UTC](https://discuss.elastic.co/t/unknown-error-message-while-opening-monitoring/55693/1 "2016-07-17T13:41:26Z")
Upon opening Monitoring tab in Kibana, getting following error:- Monitoring: Error 400 Bad Request: [parse\_exception] Failed to derive xcontent The error doesn't describe what went wrong and instead gives an error which isn't self explanatory. I am unsure what am i doing wrong which made me come across this error. ---
**Author:** ![spinscale](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/spinscale/32/25011_2.png) [@spinscale](https://discuss.elastic.co/u/spinscale)\ **Post date:** [July 18, 2016, 7:22am UTC](https://discuss.elastic.co/t/unknown-error-message-while-opening-monitoring/55693/2 "2016-07-18T07:22:21Z")
Hey, can you tell us which Elasticsearch version you are using, which kibana version and check kibana/elasticsearch logs for exceptions, include those here as well as maybe provide a screenshot where exactly this happens? --Alex ---
**Author:** ![gupta.yuvraj](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gupta.yuvraj/32/7550_2.png) [@gupta.yuvraj](https://discuss.elastic.co/u/gupta.yuvraj)\ **Post date:** [July 24, 2016, 9:32am UTC](https://discuss.elastic.co/t/unknown-error-message-while-opening-monitoring/55693/3 "2016-07-24T09:32:16Z")
Hi @spinscale Elasticsearch & Kibana version is 5.0.0.alpha 4. Attaching Kibana & Elasticsearch logs {screenshot} showcasing the exception. **Kibana Logs** ![](https://us1.discourse-cdn.com/elastic/original/2X/c/c6d32664b34103906b680c848ce2ad3407815f6a.png) **Elasticsearch Logs** ![](https://us1.discourse-cdn.com/elastic/original/2X/b/b164458e99313a053817f02bad0f33a7f0188cb7.png) ---
**Author:** ![tanguy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/tanguy/32/6030_2.png) [@tanguy](https://discuss.elastic.co/u/tanguy)\ **Post date:** [July 25, 2016, 11:58am UTC](https://discuss.elastic.co/t/unknown-error-message-while-opening-monitoring/55693/4 "2016-07-25T11:58:34Z")
Hi Gupta, The "Failed to derive xcontent" is a generic error message indicating that Elasticsearch wasn't able to determine the format of a document or a query. In your case, it might be related to a `query` restriction in your role definition. Could you please provide the roles definitions for the user who has this error? Thanks ---
**Author:** ![gupta.yuvraj](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gupta.yuvraj/32/7550_2.png) [@gupta.yuvraj](https://discuss.elastic.co/u/gupta.yuvraj)\ **Post date:** [August 1, 2016, 4:06am UTC](https://discuss.elastic.co/t/unknown-error-message-while-opening-monitoring/55693/5 "2016-08-01T04:06:53Z")
Hi Really sorry for such a late reply. Yes as you mentioned it's a generic error message. Can we have a specific error message displayed instead of generic error message? It will be more useful to the user to understand it easily. ---
**Author:** ![gupta.yuvraj](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gupta.yuvraj/32/7550_2.png) [@gupta.yuvraj](https://discuss.elastic.co/u/gupta.yuvraj)\ **Post date:** [August 6, 2016, 10:44am UTC](https://discuss.elastic.co/t/unknown-error-message-while-opening-monitoring/55693/6 "2016-08-06T10:44:40Z")
![](https://us1.discourse-cdn.com/elastic/original/2X/0/0a0a8fae39adb81007c9b9eeea2ac9427ea82281.png) I create a role as shown above and associated the role with a new user. Upon opening Kibana and logging via the new user, I was unable to view any indices or information in either of Discover, Visualize or Dashboard Page. It was showing me a blank page. For this I am seeing an error of Failed to derive x-content. The error is not useful at all for an end-user to understand what wrong is he doing. Elasticsearch log error as shown:- ![](https://us1.discourse-cdn.com/elastic/original/2X/9/9ebd483e3789259866c423953b3f7b9ac9585a6d.png) * * * Also, on Opening Monitoring Page getting following error:- ![](https://us1.discourse-cdn.com/elastic/original/2X/7/78f2025568039f2c73acf81957ef842d4de827ea.png) For the above, Kibana logs are shown as:- ![](https://us1.discourse-cdn.com/elastic/original/2X/c/c9853f102de2d6ea43301de0d953fad700b662f5.png) ---
**Author:** ![bohyun](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/bohyun/32/10087_2.png) [@bohyun](https://discuss.elastic.co/u/bohyun)\ **Post date:** [August 6, 2016, 3:54pm UTC](https://discuss.elastic.co/t/unknown-error-message-while-opening-monitoring/55693/7 "2016-08-06T15:54:59Z")
I tried to reproduce based on your steps and I did not encounter such error messages. I created a testing user and associated that user with a testing role as you shown above with access to all indices and clusters. Then I logged in as a testing user and I was able to see what was in discover using \* index pattern and the monitoring tab contents. ![](https://us1.discourse-cdn.com/elastic/original/2X/5/589fd7ea89e69560a8f0f00931456b9eed997ef7.gif) ---
**Author:** ![gupta.yuvraj](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gupta.yuvraj/32/7550_2.png) [@gupta.yuvraj](https://discuss.elastic.co/u/gupta.yuvraj)\ **Post date:** [August 7, 2016, 11:07am UTC](https://discuss.elastic.co/t/unknown-error-message-while-opening-monitoring/55693/8 "2016-08-07T11:07:37Z")
Hi I am also unable to reproduce it every time, but few times it occurs and provides a generic error. If possible you can replace the generic error with specific errors for the same. ---
**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, 1:40pm UTC](https://discuss.elastic.co/t/unknown-error-message-while-opening-monitoring/55693/9 "2017-07-06T13:40:34Z")