Requests acknowledgment that write operations have propagated to the calculated majority of the data-bearing voting members [i.e. primary and secondaries with members[n].votes greater than 0]. { w: "majority" } is the default write concern for most MongoDB deployments. See Implicit Default Write Concern.
For example, consider a replica set with 3 voting members, Primary-Secondary-Secondary [P-S-S]. For this replica set, calculated majority is two, and the write must propagate to the primary and one secondary to acknowledge the write concern to the client.
After the write operation returns with a w: "majority" acknowledgment to the client, the client can read the result of that write with a "majority" readConcern.
If you specify a "majority" write concern for a multi-document transaction and the transaction fails to replicate to the calculated majority of replica set members, then the transaction may not immediately roll back on replica set members. The replica set will be eventually consistent. A transaction is always applied or rolled back on all replica set members.
See Acknowledgment Behavior for when mongod instances acknowledge the write.
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Hi chào các bạn mình muốn chia sẻ với các bạn 1 nguồn học từ mới rất tốt. speaking24h.com Các bạn xuống đăng ký ở vocabulary learning, chỉ cần nhập email và chọn level phù hợp. Automatic mỗi ngày bạn sẽ nhận được 1 từ mới. Có thể các bạn nghĩ mỗi ngày 1 từ thì đến lúc nào mới có thể tăng vốn từ mới của mình lên được nhưng không hẳn như vậy, với chỉ 1 từ mỗi ngày nhưng bạn biết được cách phát âm, một vài cách dùng, các cụm từ đi kèm nghĩa là bạn đã học rất sâu [deep learning]. Ví dụ: chỉ một từ cake rất đơn giản nhưng nếu bạn chỉ biết nghĩa thì bạn sẽ rất khó dùng trong văn nói và viết. ta có thể học thêm 1 vài cụm danh từ nữa: a slice of cake; a piece of cake hoặc 1 vài động từ đi với cake: make a cake; bake a cake.. cứ như thế bạn sẽ tích lũy được 1 vốn từ tuy tăng không nhanh nhưng rất chắc chắn, bảo đảm cho bạn có thể "dùng" được[nói và viết] chứ không phải chỉ để hiểu. Nói thì lan man quá, gửi các bạn một ví dụ từ speaking24h.com [trình độ intermediate] here is today's word of the day:FAMILIAR Here are two examples of potential use: Ex 1.: Are you familiar with Tennyson's poetry? I think he's a great poet. Ex 2.: Your face seems familiar to me. Have we ever met before? vậy ngoài nghĩa familiar: quen thuộc, vâng từ này cũng là một từ dễ, nhưng tôi có học thêm được từ mới gì từ từ này 1. Cấu trúc: be familiar with sth 2. Đi kèm với động từ: look/taste/seem familiar to sb 3. Từ đối nghĩa: unfamiliar Ngoài ra bạn nên tự đặt câu, có thể sẽ không quá chuẩn nhưng ít nhất tạo cho bạn cách dùng nó. Một khi bạn đã có thể viết ra được chắc chắn bạn cũng sẽ nói được. Các bạn có thêm ý kiến gì thì góp ý nhé. Mình dự định mỗi ngày sẽ cập nhật 1 từ.
THân
CROWD [N,V] Here are two examples of potential use: Ex 1.: The city parade drew crowds of people eager to take part in it. Ex 2.: There were crowds of people at the cinema when James Bond returned to the big screen in "Quantum of Solace". Additional Usage . the crowd [sing.] [sometimes disapproving] ordinary people, not special or unusual in any way: Ex: We all like to think we stand out from the crowd [= are different from and better than other people]. She’s quite happy to follow the crowd. CROWDED [ADJ] + with sth
Ex: A room crowded with books
CROWD [N,V] Here are two examples of potential use: Ex 1.: The city parade drew crowds of people eager to take part in it. Ex 2.: There were crowds of people at the cinema when James Bond returned to the big screen in "Quantum of Solace". Additional Usage . the crowd [sing.] [sometimes disapproving] ordinary people, not special or unusual in any way: Ex: We all like to think we stand out from the crowd [= are different from and better than other people]. She’s quite happy to follow the crowd. CROWDED [ADJ] + with sth
Ex: A room crowded with books
cowboy_1991
12-06-2012, 10:07 AM
Cám ơn đồng chí. cố gắng update thường xuyên nhé, cùng nhau học để tiến bộ. :D :]
Bạn cho mình Skype or yahoo đi, rồi có gì mình chưa biết mình hỏi bạn. :]
VALID [adj] Here are two examples of potential use: Ex 1.: Your bus ticket is valid for three months starting now. Ex 2.: I'm sorry, Sir, we must keep your car. Your driving licence is no longer valid. Opp: invalid
Validity [noun]
CONTRACT [N] Here are two examples of potential use: Ex 1.: If you want to sell your car, you'll probably have to draw up a sales contract. Ex 2.: I'd rather sign the employment contract as soon as possible not to be cheated and paid nothing. to enter into/make/sign in a contract with sb Ex: Our client made a decision to enter int a contract with X to implement piling package win/be awarded a contract Ex: Our company has just been awarded a contract to build a new school. on a contract Ex: I was on a three-year contract that expired last week Under the term of contract Ex: Under the term of contract, the test should be carry out immediately CONTRACT [V] contract sb to sth
Ex: I'm contracted to work for company until next year
Concern [V] 1. affect/involve [often passive] Ex: Don't interfere what dosen't concern you. Ex: To whom it may concerned [= used for example, at the beginning of a public notice or of a job reference about sb’s character and ability] 2.be about Ex: The story concerns the prince's efforts to recuse Pamina 3. worry sb Ex: What concerns me is our lack of preparation for the change Concern [noun] 1.worry concern [about/for/over sth/sb] concern that Ex: There is growing concern about violence on television Ex: Stress at work is a matter of concern to staff and management Ex: The President’s health was giving serious cause for concern concerned [adj] concerned [about/for sth]| concerned [that...]: worried about sth
Ex: The President is deeply concerned about this issue
Concern [V] 1. affect/involve [often passive] Ex: Don't interfere what dosen't concern you. Ex: To whom it may concerned [= used for example, at the beginning of a public notice or of a job reference about sb’s character and ability] 2.be about Ex: The story concerns the prince's efforts to recuse Pamina 3. worry sb Ex: What concerns me is our lack of preparation for the change Concern [noun] 1.worry concern [about/for/over sth/sb] concern that Ex: There is growing concern about violence on television Ex: Stress at work is a matter of concern to staff and management Ex: The President’s health was giving serious cause for concern concerned [adj] concerned [about/for sth]| concerned [that...]: worried about sth
Ex: The President is deeply concerned about this issue
PARTICULAR [adj] 1. used to emphasize that you are referring to one individual person, thing or type of thing and not others Ex: Is there any particular type of book he enjoys? 2. greater than usual, special Ex: We must pay particular attention to this point IDIOMS in particular 1. especially or particularly Ex: He loves science fiction in particular 2. special or specific Ex: Is there anything in particular you would like for dinner? PARTICULAR [Noun] formal a fact or detail especially one that is officially written down
Ex: The new contract will be the same in every particular as the old one.
ATTACH [V] 1. to fasten connect one object to another attach sth to sth Ex: Attach a recent photograph to your application form 2. to connect a document or a file to an email so that you can send them together 3. be attached to sb/sth to like someone or something very much because you have known or had them for a long time Ex: It's easy to become attached to the children you work with ATTACHMENT [n] 1. a part that you can put onto a machine to make it to do a particular job Ex: The vacuum cleaner has various attachment 2. a feeling that you like or love someone or something and that you would be unhappy without them
attachment to/for. a child's attachment to his mother
DECLINE [N] a decrease in the quality, quantity, or importance of sth decline in/of collocations: sharp/steep/dramatic/gradual decline cause/lead to a decline stop/reverse a decline DECLINE [V] 1. decrease 2. Say no
3. become worse
average [adj] 1. an average amount or quantity is not unusually big or small of average height/build/intelligence etc Ex: He was in his late twenties and of average height 2. have qualities that are typical of most people or things Ex: The average American has not even thought about next year's election average [noun] 1. on average based on a calculation about how many times sth usually happens, how much money someone usually gets, etc Ex: on average, men still earn more than woman 2. the usual level or amount for most people or things: above/below average
Ex: The murder rate in the city has risen to four times the national average
EXPOSE [V] 1.to show sth that is usually hidden Ex: He did not want to expose his fears and insecurity to anyone. 2.to tell the true facts about a person or a situation, and show them / it to be immoral, illegal, etc.: Ex: She was exposed as a liar and a fraud 3.expose sb/sth / yourself [to sth] to put sb/sth in a place or situation where they are not protected from sth harmful or unpleasant: Ex: Do not expose babies to strong sunlight. 4. expose sb to sth to let sb find out about sth by giving them experience of it or showing them what it is like: Ex: We want to expose the kids to as much art and culture as possible. 5. expose yourself a man who exposes himself, shows his sexual organs in public in a way that is offensive to other people
EXPOSURE [N]
ATTEMPT [N] 1. attempt to do sth|attempt [at sth/at doing sth] an act of trying to do sth, especially sth difficult, often with no success Ex: I passed my driving test at the first attempt 2. attempt [on sth] an effort to do better than sth, such as a very good performance in sport: Ex: his attempt on the world land speed record ATTEMPT [VERB] to make an effort or try to do sth, especially sth difficult:
Ex: I will attempt to answer all your questions
APPLY [V] 1. To make a formal request, usually written, for sth such as a job, a place at university, or permission to do sth apply for EX: We need to apply for construction certificate to build a house 2. to have an effect on or to concern a particular person, group, or situation apply to Ex: Do the same rules apply to newcomers? 3. to use sth such as a method idea or law in a particular situation, activity or process Ex: These ideas are often difficult to apply in practice 4. to put or spread sth such as paint, liquid or medicine onto a surface:
Ex: Apply the cream evenly over the skin
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