oss-sentinel-ai commented on issue #10460: URL: https://github.com/apache/rocketmq/issues/10460#issuecomment-4668712910
**Issue Evaluation** Category: `type/enhancement` | Status: **Confirmed** Verified against the current codebase on `develop` branch. **Analysis:** - `ProxyContext#value` is initialized as `new HashMap<>()` (default capacity 16, resize threshold 12 at 0.75 load factor). - `ContextVariable` defines 10 well-known keys, all typically populated per request. - With interceptors/plugins adding more entries, the map reliably crosses the threshold of 12 on every request, triggering a resize on the hot path. **Assessment:** - **Feasibility:** Straightforward — single-line change with no behavioral impact. - **Scope:** `proxy/src/main/java/org/apache/rocketmq/proxy/common/ProxyContext.java` only. - **Compatibility:** No breaking changes. The proposed capacity of 64 (threshold 48) provides comfortable headroom. - **Impact:** Eliminates a deterministic rehash on every gRPC/Remoting request. Negligible memory overhead (~256 bytes per context). This is a valid and well-motivated optimization. The suggested approach (initial capacity = 64) is reasonable. --- *Automated evaluation by oss-sentinel-ai* -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
