Can't get node info case by SecurityException

Elastic Stack Elasticsearch
1

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?

2

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