circuit_breaking_exception data too large

es集群中的一个节点 脱离集群变成unkown状态，执行任何查询都报以下错误：

{
"error" : {
"root_cause" : [
{
"type" : "circuit_breaking_exception",
"reason" : "[parent] Data too large, data for [<http_request>] would be larger than limit of [22408154316/20.8gb]",
"bytes_wanted" : 22408228256,
"bytes_limit" : 22408154316
}
],
"type" : "circuit_breaking_exception",
"reason" : "[parent] Data too large, data for [<http_request>] would be larger than limit of [22408154316/20.8gb]",
"bytes_wanted" : 22408228256,
"bytes_limit" : 22408154316
},
"status" : 503
}