From 1fe3368c5a5f6f4e70e61c330a8fc5d524cad620 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=BB=84=E8=87=AA=E8=BE=BE?= <980324341@qq.com>
Date: Thu, 17 Sep 2026 01:55:35 +0800
Subject: [PATCH] =?UTF-8?q?perf(rustfs):=20=E9=87=8D=E8=AF=95=E5=9F=BA?=
 =?UTF-8?q?=E7=A1=80=E9=80=80=E9=81=BF=20500ms=E2=86=92200ms?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

线上高频的重试诱因是 unexpected end of stream——那是**立即失败**（RustFS 重置连接后
OkHttp 读响应即报错），不是等超时，500ms 基本是白等；每天上千次累计十几分钟。
降到 200ms 保留退避语义（真遇服务端过载仍会让步），又不让用户多等。
---
 .../nanri/aiimage/config/TransientStorageProperties.java | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/backend-java/src/main/java/com/nanri/aiimage/config/TransientStorageProperties.java b/backend-java/src/main/java/com/nanri/aiimage/config/TransientStorageProperties.java
index 8824cf71..4b830f1c 100644
--- a/backend-java/src/main/java/com/nanri/aiimage/config/TransientStorageProperties.java
+++ b/backend-java/src/main/java/com/nanri/aiimage/config/TransientStorageProperties.java
@@ -29,7 +29,14 @@ public class TransientStorageProperties {
      */
     private long maxTotalConcurrentOperations = 0;
     private long acquirePermitTimeoutMillis = 2000;
-    private long baseRetryDelayMillis = 500;
+    /**
+     * 首次重试前的基础退避。
+     *
+     * <p>线上高频的重试诱因是 `unexpected end of stream`——那是**立即失败**（连接被 RustFS
+     * 重置后 OkHttp 读响应即报错），不是等超时，所以 500ms 基本是白等：每天上千次累计十几分钟。
+     * 降到 200ms 保留退避语义（真遇到服务端过载仍会退让），又不至于让用户等太久。
+     */
+    private long baseRetryDelayMillis = 200;
     private long maxRetryDelayMillis = 5000;
     private long retryJitterMillis = 250;
     private long failureWindowSeconds = 60;