$ curl -s -XGET 'https://エンドポイント/index-2017.03.30/_search?size=100&pretty' | grep index | wc -l100$ curl -s -XGET 'https://エンドポイント/index-2017.03.30/_search?size=10000&pretty' | grep index | wc -l10000$ curl -s -XGET 'https://エンドポイント/index-2017.03.30/_search?size=10001&pretty'{ "error" : { "root_cause" : [ { "type" : "query_phase_execution_exception", "reason" : "Result window is too large, from + size must be less than or equal to: [10000] but was [10001]. See the scroll api for a more efficient way to request large data sets. This limit can be set by changing the [index.max_result_window] index level parameter." } ], "type" : "search_phase_execution_exception", "reason" : "all shards failed", "phase" : "query_fetch", "grouped" : true, "failed_shards" : [ { "shard" : 0, "index" : "index-2017.03.30", "node" : "XXXXXXXXXXXXX", "reason" : { "type" : "query_phase_execution_exception", "reason" : "Result window is too large, from + size must be less than or equal to: [10000] but was [10001]. See the scroll api for a more efficient way to request large data sets. This limit can be set by changing the [index.max_result_window] index level parameter." } } ] }, "status" : 500}$ curl -s -XGET 'https://エンドポイント/index-2017.03.30/_search?scroll=1m&size=200000&pretty' | grep index | wc -l133118