Meta Opens Rebalancer, Solving 40 Million Daily Infrastructure Problems

Meta open-sourced Rebalancer, the Apache-licensed solver running 40 million daily assignment problems across its fleet for nine years.

Source

Engineering at Meta

Published

Oct 6, 2026, 2:05 PM

Author

AlphaSignal Newsroom

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1 min read

Meta open-sourced Rebalancer, the Apache-licensed solver running 40 million daily assignment problems across its fleet for nine years.

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