dbaplus Community

Oct 26, 2019 · Databases

Why Oracle RAC GC Waits Spike: Uncovering Hidden Network and IRQ Bottlenecks

A detailed DBA interview walks through the diagnosis of excessive Oracle RAC GC wait events, revealing that cross‑instance queries, network latency, NIC bonding mode, and unbalanced IRQ handling together caused the slowdown, and shows step‑by‑step fixes that finally eliminated the problem.