Ctrip Technology
Dec 28, 2019 · Operations
Root Cause Analysis of Dubbo Connect Timeout in High‑Concurrency Scenarios and Backlog Tuning
This article presents a detailed case study of intermittent Dubbo connect‑timeout errors in a high‑concurrency deployment, describing step‑by‑step diagnostics—from port status checks and registry verification to TCP dump analysis—and explains how adjusting the server’s backlog and accept queue resolved the SYN‑drop issue.
BacklogDubboNetwork Tuning
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