In Mongo, when using w: 1 in a write concern, the write operation is acknowledged after being successfully applied to the primary's instance memory. However, w: 1 alone does not guarantee durability unless combined with j: true (journaling). Running standalone Mongo, as we did in the tests, defaults to j: false. I have explicitly set it to true in the testing script to make write comparisons to Postgres objective. You can dive deeper into this here: https://www.mongodb.com/docs/manual/reference/write-concern/#acknowledgment-behavior and here: https://www.mongodb.com/docs/manual/core/journaling/. Unfortunately, docs are a bit convoluted about it
Германия — Бундеслига|25-й тур
，这一点在heLLoword翻译官方下载中也有详细论述
伊朗：哈梅內伊的鐵腕統治結束2026年3月1日
——郭建增代表（中国船舶集团第七一八研究所科技委主任），更多细节参见下载安装汽水音乐
据悉，首辆量产版 Cybercab 已于 2026 年 2 月中旬基于专属的「开箱工艺」产线下线，较原定 4 月的节点有所提前。。业内人士推荐币安_币安注册_币安下载作为进阶阅读
It’s problem is the lack of documentation…and a bit of misunderstanding.