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Deploy a high‑availability YARN ResourceManager using ZooKeeper, a shared state store, and Kerberos. This guide covers architectural requirements, minimal design, trust boundaries, operational checks, failure modes, and when to evolve the design.
A concise architecture note covering Yarn ResourceManager HA requirements, minimal two‑node design, trust boundaries, operational verification steps, typical failure modes, and when the design would need to change.
Selecting coordination for a ClickHouse cluster involves choosing between embedded ClickHouse Keeper and an external ZooKeeper ensemble. The decision is framed by a concrete operational constraint: maintaining metadata availability and DDL progress when individual ClickHouse nodes fail under load. ClickHouse Keeper runs in-process with the server since v21.8
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