使用 client 的 logger
https://github.com/elastic/go-elasticsearch/blob/master/_examples/logging/default.go
or
https://github.com/olivere/elastic/wiki/Logging
esConfig := []elastic.ClientOptionFunc{elastic.SetURL(config.GetString("es.url"))}
if gin.Mode() != gin.ReleaseMode {
esConfig = append(esConfig, elastic.SetTraceLog(log.New(log.Writer(), "\n", 0)))
}
Client, err = elastic.NewClient(esConfig...)
使用 Elasticsearch 的 slow log
ES 的 config 中没有单独的 log 选项, 但是有 slow log, 类似关系型数据库的慢查询. 测试环境可以通过修改log的触发阈值来记录每条请求.
slow log 又分 indexing log 和 search log.
PUT /mark/_settings
{
"index.search.slowlog.threshold.fetch.trace": "0ms",
"index.search.slowlog.level": "trace",
"index.indexing.slowlog.threshold.index.trace": "0ms",
"index.indexing.slowlog.level": "trace"
}