Caused by: org.elasticsearch.client.ResponseException: method [POST], host [http://192.168.132.245:9200], URI [/collect_data_store_customer_flow_fact*/_search?typed_keys=true&ignore_unavailable=false&expand_wildcards=open&allow_no_indices=true&scroll=60000ms&search_type=query_then_fetch&batched_reduce_size=512&ccs_minimize_roundtrips=true], status line [HTTP/1.1 500 Internal Server Error]
{"error":{"root_cause":[{"type":"exception","reason":"Trying to create too many scroll contexts. Must be less than or equal to: [500]. This limit can be set by changing the [search.max_open_scroll_context] setting."},{"type":"exception","reason":"Trying to create too many scroll contexts. Must be less than or equal to: [500]. This limit can be set by changing the [search.max_open_scroll_context] setting."}],"type":"search_phase_execution_exception","reason":"all shards failed","phase":"query","grouped":true,"failed_shards":[{"shard":0,"index":"collect_data_store_customer_flow_fact_201909","node":"q2A1DV-ERxajfaeEerZXXg","reason":{"type":"exception","reason":"Trying to create too many scroll contexts. Must be less than or equal to: [500]. This limit can be set by changing the [search.max_open_scroll_context] setting."}},{"shard":0,"index":"collect_data_store_customer_flow_fact_201910","node":"1C7XnVeiRF-vCZAR2jdpnQ","reason":{"type":"exception","reason":"Trying to create too many scroll contexts. Must be less than or equal to: [500]. This limit can be set by changing the [search.max_open_scroll_context] setting."}}]},"status":500}偶尔会出现以上的问题
scroll 客户端 设置的原来是 1000 ， 改为 500 解决。
因为默认是 500 ， 所以es不允许
https://segmentfault.com/a/1190000020395065
