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
Long hours in ditches: Being an electrician isn’t for everyone
，推荐阅读体育直播获取更多信息
On the face of it the challenge England face is daunting. Though they won all three games in the Super 8 stage to ease into the semi-finals those matches were played in Sri Lanka, where they now have a 100% record in six outings this year. They have since returned to Mumbai, where they were so nearly beaten by Nepal in their tournament opener and then actually beaten by West Indies, and where they can expect nothing but hostility from a sold-out crowd of 33,000.。体育直播是该领域的重要参考
中国药企依托“工程师红利”在渐进式、改良型创新上取得了大量成果，如今已很少有人质疑中国临床数据的可靠性。其实，世界上划时代的“0到1”新药本就稀少，只要改良分子能切实解决临床痛点，同样被视为全球范围内的有效创新。过去多年的实践与BD交易已证明了这一点。。下载安装 谷歌浏览器 开启极速安全的 上网之旅。是该领域的重要参考