今天重启Kibana容器，结果启动不了，一看日志发现是Data数据量太大报错。
FATAL [circuit_breaking_exception] [parent] Data too large, data for [<http_request>] would be [250592200/238.9mb], which is larger than the limit of [246546432/235.1mb], real usage: [250592200/238.9mb], new bytes reserved: [0/0b], usages [request=16512/16.1kb, fielddata=11330/11kb, in_flight_requests=0/0b, accounting=7160235/6.8mb], with { bytes_wanted=250592200 & bytes_limit=246546432 & durability="PERMANENT" } :: {"path":"/.kibana","query":{},"statusCode":429,"response":"{"error":{"root_cause":[{"type":"circuit_breaking_exception","reason":"[parent] Data too large, data for [<http_request>] would be [250592200/238.9mb], which is larger than the limit of [246546432/235.1mb], real usage: [250592200/238.9mb], new bytes reserved: [0/0b], usages [request=16512/16.1kb, fielddata=11330/11kb, in_flight_requests=0/0b, accounting=7160235/6.8mb]","bytes_wanted":250592200,"bytes_limit":246546432,"durability":"PERMANENT"}],"type":"circuit_breaking_exception","reason":"[parent] Data too large, data for [<http_request>] would be [250592200/238.9mb], which is larger than the limit of [246546432/235.1mb], real usage: [250592200/238.9mb], new bytes reserved: [0/0b], usages [request=16512/16.1kb, fielddata=11330/11kb, in_flight_requests=0/0b, accounting=7160235/6.8mb]","bytes_wanted":250592200,"bytes_limit":246546432,"durability":"PERMANENT"},"status":429}"}
数据量太大导致内存不足，可以设置fielddata的内存限制，默认60%
- curl -u elastic -XPUT "ip:port/_cluster/settings" -H 'Content-Type: application/json' -d '{ "persistent" : { "indices.breaker.fielddata.limit" : "40%" } }'
- -u elastic 为elasticsearch的用户验证，没有设置可以不加
