# Scalable Leader Leases for Distributed SQL Databases: CockroachDB at SIGMOD 2026

DevFeed: [Scalable Leader Leases for Distributed SQL Databases: CockroachDB at SIGMOD 2026](<https://devfeed.tech/articles/scalable-leader-leases-for-distributed-sql-databases-cockroachdb-at-sigmod-2026-23779.md>)

Original publisher: [Read original article](<https://cockroachlabs.com/blog/distributed-database-leader-leases>)

Author: Rebecca Taft

Published: 2026-05-26T00:00:00Z

Content type: release

Language: en

Sources: [Cockroach Labs](<https://devfeed.tech/sources/cockroach-labs.md>)

Topics: [CockroachDB](<https://devfeed.tech/topics/cockroachdb.md>), [distributed-systems](<https://devfeed.tech/topics/distributed-systems.md>), [Databases](<https://devfeed.tech/topics/databases.md>), [Cockroach Labs](<https://devfeed.tech/topics/cockroach-labs.md>), [SQL](<https://devfeed.tech/topics/sql.md>), [Raft](<https://devfeed.tech/topics/raft.md>), [systems](<https://devfeed.tech/topics/systems.md>), [health checks](<https://devfeed.tech/topics/health-checks.md>)

Tags: [2026](<https://devfeed.tech/tags/2026.md>), [cockroach-labs](<https://devfeed.tech/tags/cockroach-labs.md>), [cockroachdb](<https://devfeed.tech/tags/cockroachdb.md>), [consensus](<https://devfeed.tech/tags/consensus.md>), [distributed](<https://devfeed.tech/tags/distributed.md>), [paper](<https://devfeed.tech/tags/paper.md>), [sql](<https://devfeed.tech/tags/sql.md>)

## AI overview

Cockroach Labs announces a SIGMOD 2026 paper on scalable leader leases for multi-consensus groups in CockroachDB. The paper addresses lease-management overhead in distributed SQL databases, where coordinating leases across very large numbers of replicated data ranges can consume CPU and slow recovery from failures.

## Source excerpt

We are pleased to announce that Cockroach Labs has a new paper appearing at SIGMOD 2026: Scalable Leader Leases For Multi Consensus Groups in CockroachDB.