1. 内存异常circuit_breaking_exception

　　错误：

Elasticsearch exception [type=circuit_breaking_exception, reason=[parent] Data too large,
 data for [<http_request>] would be [5014571538/4.6gb], which is larger than the limit of [4992565248/4.6gb],
 real usage: [5014571024/4.6gb], new bytes reserved: [514/514b], usages [request=0/0b, fielddata=2080269407/1.9gb,
 in_flight_requests=514/514b, accounting=354869718/338.4mb]]

　　解决方法