Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
who can explain code that it’s the core of the twitter snowflake.
long nextId = ((timestamp - twepoch) << this.timestampLeftShift)
| (this.workerId << this.workerIdShift) | (this.sequence);
i want to know that the think of the algorithm,why does it implement?
Twitter’s snowflake service creates unique ids in a distributed environment. A number of worker processes can each assign unique ids. The ids consist of three components: the time, a worker id, and a sequence number. The line of code you show simple shifts those three components so that they don’t overlap in the 64-bit result, and or’s them together to create a single 64-bit result.