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6.8K Stars 1.1K Forks 333 Commits 4 Opened issues


Snowflake is a network service for generating unique ID numbers at high scale with some simple guarantees.

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We have retired the initial release of Snowflake and working on open sourcing the next version based on Twitter-server, in a form that can run anywhere without requiring Twitter's own infrastructure services.

The initial version, released in 2010, was based on Apache Thrift and it predated Finagle, our building block for RPC services at Twitter. The Snowflake we're using internally is a full rewrite and heavily relies on existing infrastructure at Twitter to run. We cannot commit to a date but we're doing our best to add necessary features to make Snowflake fit for many environments outside of Twitter.

Source code is still in the repository and is reachable from snowflake-2010 tag.

We won't be accepting pull requests or responding to issues for the retired release.

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