I Measured What Self-Hosted Chatwoot Actually Uses

说明与用途

单个 4 GB VPS 可运行自托管 Chatwoot，34 位用户、348,703 条消息，仅使用 1.8 GB 内存；资源使用随消息量而非座位数增长。若有运维能力，可自托管；否则云端更经济。

问题

Clients need realistic resource estimates for self‑hosted Chatwoot, but pricing articles only list tier numbers without showing actual usage.

结果

A single 4 GB VPS can comfortably run a self‑hosted Chatwoot instance with 34 seats and 348,703 messages using only 1.8 GB RAM; resource usage is driven by message volume, not seat count. Self‑hosting is viable if ops capacity exists; otherwise Cloud is cheaper due to reduced operational overhead.

工作流

• Set up a single‑box Docker deployment of Chatwoot (rails, postgres, sidekiq, redis).
• Run docker stats during steady state to capture container memory usage.
• Record disk usage of Postgres (997 MB) and total system usage (20 GB of 38 GB).
• Calculate message volume per seat and per inbox.
• Compare retention limits on Chatwoot Cloud tiers to actual conversation history length.
• Publish findings on personal blog for transparency.
• Provide guidance on when self‑hosting is cost‑effective versus Cloud.
• Offer affiliate code for Cloud discounts.
• Document operational challenges encountered (connection‑pool exhaustion, Redis eviction, log rotation, upgrade issues).

证据

348,703 messages across 20 inboxes fit inside about 1.8 GB of RAM.

来源

The whole box sits at 20 GB of 38 GB used and 2.4 GB of 3.7 GB RAM — and that box hosts other things too.

来源

Adding an agent to a self-hosted install costs nothing. On Cloud, every seat is another line on the bill, every month, for as long as you have it.

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