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
印度为俄罗斯游客拍照将大象染粉致其死亡20:49
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载有百名军人的飞机起飞时坠毁20:17
在福建南平举办的第三届武夷文化论坛上，北京大学历史系赵冬梅教授指出，当前社会对宋代历史的关注热潮，反映了当代中国文明发展达到的新高度。
Премьер-министр указал, что передача природного газа не будет возобновлена до тех пор, пока украинская сторона не восстановит функционирование нефтепровода.