Elasticsearch 回复过期的滚动上下文

Question

当使用 Elasticsearch scroll API 接收具有许多匹配项的查询结果时，您必须提供 scroll 超时值。 Elasticsearch 不保证滚动上下文在超时后保持活动状态（滚动被处理为 Elasticsearch 记住的一种 "session"）。

但是，如果您在超时到期后"page"向 Elasticsearch 请求另一个，会发生什么情况？你从 Elasticsearch 得到什么回应？它是否具有独特的 HTTP 状态代码？或者 JSON 响应正文中的独特字段？

Answer 1

响应状态代码为 404。您还会收到一条解释所发生情况的错误消息。

{
    "error": {
        "caused_by": {
            "reason": "No search context found for id [35544152]",
            "type": "search_context_missing_exception"
        },
        "failed_shards": [
            {
                "index": null,
                "reason": {
                    "reason": "No search context found for id [35544152]",
                    "type": "search_context_missing_exception"
                },
                "shard": -1
            }
        ],
        "grouped": true,
        "phase": "query",
        "reason": "all shards failed",
        "root_cause": [
            {
                "reason": "No search context found for id [35544152]",
                "type": "search_context_missing_exception"
            }
        ],
        "type": "search_phase_execution_exception"
    },
    "status": 404
}

Elasticsearch 回复过期的滚动上下文

Elasticsearch reply for expired scroll context

pagination

session-timeout

elasticsearch