Elasticsearch CircuitBreakingException 错误解决方案节点学院

# Elasticsearch CircuitBreakingException 错误解决方案^100.00%      

偶尔会报错，报错信息为：^100.00%      
```java
org^100.00%      .elasticsearch.common^100.00%      .breaker^100.00%      .CircuitBreakingException: [parent] Data too large, data for [] would be [260230692/248^100.00%      .1mb], which is larger than the limit of [255013683/243.1mb], real usage: [260230552/248.1mb], new bytes reserved: [140/140b], usages [request=0/0b, fielddata=650/650b, in_flight_requests=140/140b, accounting=132300/129.1kb]^100.00%      
	at org.elasticsearch.indices.breaker.HierarchyCircuitBreakerService.checkParentLimit(HierarchyCircuitBreakerService.java:343)^100.00%      
```

**原因**：^100.00%      
field data 的缓存不够用^100.00%      


**临时解决方案**^100.00%      
Kibana Dev Tools^100.00%      
```java
PUT _cluster/settings
{
  "persistent" : {^100.00%      
    "indices.breaker.fielddata.limit" : "40%" ^100.00%      
  }
}
```

**终极解决方案**^100.00%      

加内存

原先给的256m 咋调参数都会报错，狠心又扩了8G的内存，给重新分了4G的内存，终于不报错了o(╥﹏╥)o^96.67%