# Can't get node info case by SecurityException

**URL:** <https://discuss.elastic.co/t/cant-get-node-info-case-by-securityexception/138533>\
**Category:** Elasticsearch\
**Created:** [July 4, 2018, 10:21am UTC](https://discuss.elastic.co/t/cant-get-node-info-case-by-securityexception/138533 "2018-07-04T10:21:37Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![laigood](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/laigood/32/30060_2.png) [@laigood](https://discuss.elastic.co/u/laigood)\
**Post date:** [July 4, 2018, 10:21am UTC](https://discuss.elastic.co/t/cant-get-node-info-case-by-securityexception/138533/1 "2018-07-04T10:21:37Z")

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I use es 6.2.2,and today i find can't get node info in cerebro console,i manual use get \_nodes/stats api it return  
{  
"type": "failed\_node\_exception",  
"reason": "Failed node [b4ZDMPrWQ5WBJkdmap5rtw]",  
"caused\_by": {  
"type": "security\_exception",  
"reason": "access denied ("java.io.FilePermission" "/sys/fs/cgroup/cpu" "read")"  
}  
}  
but if i login that machine and use the same user can access that path.If i restart that node,it become normal.Why this happen?

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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:** [August 1, 2018, 10:21am UTC](https://discuss.elastic.co/t/cant-get-node-info-case-by-securityexception/138533/2 "2018-08-01T10:21:42Z")

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Closed on August 1, 2018, 10:21am UTC

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