qiniu · bachue · Dec 2, 2022 · Nov 15, 2022 · Nov 22, 2022 · Nov 22, 2022
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,4 +1,8 @@
 #Changelog
+## 8.5.2(2022-11-24)
+* 支持 multi 区域
+* 优化 Server 配置拉去逻辑
+
 ## 8.5.1(2022-10-21)
 * 移除雾存储区域：华东一区
 * 新增首尔和华东浙江 2 区 Region

diff --git a/README.md b/README.md
@@ -15,6 +15,7 @@ https://github.com/qiniudemo/qiniu-lab-android
 
 | Qiniu SDK 版本 | 最低 Android版本   |       依赖库版本           |
 |------------ |-----------------|------------------------|
+|  8.5.2        |  Android 4.0+     |        okhttp 4+         |
 |  8.5.1        |  Android 4.0+     |        okhttp 4+         |
 |  8.5.0        |  Android 4.0+     |        okhttp 4+         |
 |  8.4.*        |  Android 4.0+     |        okhttp 4+         |
@@ -35,7 +36,7 @@ https://github.com/qiniudemo/qiniu-lab-android
 |  7.0.7        |  Android 2.2+     | android-async-http 1.4.8 |
 
 ### 注意
-* 推荐使用最新版：8.5.1
+* 推荐使用最新版：8.5.2
 * 7.6.2 ~ 8.3.2 AndroidNetwork.getMobileDbm()可以获取手机信号强度，需要如下权限(API>=18时生效)
 ```
   <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>

diff --git a/library/build.gradle b/library/build.gradle
@@ -61,7 +61,7 @@ dependencies {
     implementation 'com.squareup.okhttp3:okhttp:4.9.1'
 
 //    implementation 'com.squareup.okhttp3:okhttp:3.12.+'
-    implementation 'com.qiniu:happy-dns:2.0.0'
+    implementation 'com.qiniu:happy-dns:2.0.1'
     // for javax.annotation.Nullable use in custom MultipartBody and Headers implements.
 //    implementation 'com.google.code.findbugs:jsr305:3.0.2'
     implementation 'org.conscrypt:conscrypt-android:2.2.1'

diff --git a/library/src/androidTest/java/com/qiniu/android/TestConfig.java b/library/src/androidTest/java/com/qiniu/android/TestConfig.java
@@ -10,27 +10,26 @@ public final class TestConfig {
     // TODO: 2020-05-09 bad token for testPutBytesWithFixedZoneUseBackupDomains
     // 华东上传凭证
     public static final String bucket_z0 = "kodo-phone-zone0-space";
-
-    public static final String token_z0 = "dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:Qxeb7v5PXIrih_gwR-6pD1KsGgg=:eyJzY29wZSI6ImtvZG8tcGhvbmUtem9uZTAtc3BhY2UiLCJkZWFkbGluZSI6MTY2OTUzNDk3OCwgInJldHVybkJvZHkiOiJ7XCJmb29cIjokKHg6Zm9vKSwgXCJiYXJcIjokKHg6YmFyKSwgXCJtaW1lVHlwZVwiOiQobWltZVR5cGUpLCBcImhhc2hcIjokKGV0YWcpLCBcImtleVwiOiQoa2V5KSwgXCJmbmFtZVwiOiQoZm5hbWUpfSJ9";
+    public static final String token_z0 = "dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:gk-emjEYF779GyuD2PLjrJGNeWw=:eyJzY29wZSI6ImtvZG8tcGhvbmUtem9uZTAtc3BhY2UiLCJkZWFkbGluZSI6MTY3NDgwMTE1NSwgInJldHVybkJvZHkiOiJ7XCJmb29cIjokKHg6Zm9vKSwgXCJiYXJcIjokKHg6YmFyKSwgXCJtaW1lVHlwZVwiOiQobWltZVR5cGUpLCBcImhhc2hcIjokKGV0YWcpLCBcImtleVwiOiQoa2V5KSwgXCJmbmFtZVwiOiQoZm5hbWUpfSJ9";
     // 华北上传凭证
     public static final String bucket_z1 = "kodo-phone-zone1-space";
-    public static final String token_z1 = "dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:crF2Xi7Zxcs6y9OIwmbZ_9QdAtA=:eyJzY29wZSI6ImtvZG8tcGhvbmUtem9uZTEtc3BhY2UiLCJkZWFkbGluZSI6MTY2OTUzNDk3OCwgInJldHVybkJvZHkiOiJ7XCJmb29cIjokKHg6Zm9vKSwgXCJiYXJcIjokKHg6YmFyKSwgXCJtaW1lVHlwZVwiOiQobWltZVR5cGUpLCBcImhhc2hcIjokKGV0YWcpLCBcImtleVwiOiQoa2V5KSwgXCJmbmFtZVwiOiQoZm5hbWUpfSJ9";
+    public static final String token_z1 = "dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:Vo4gv4uabU3RKpH0R-PxhU6tj6c=:eyJzY29wZSI6ImtvZG8tcGhvbmUtem9uZTEtc3BhY2UiLCJkZWFkbGluZSI6MTY3NDgwMTE1NSwgInJldHVybkJvZHkiOiJ7XCJmb29cIjokKHg6Zm9vKSwgXCJiYXJcIjokKHg6YmFyKSwgXCJtaW1lVHlwZVwiOiQobWltZVR5cGUpLCBcImhhc2hcIjokKGV0YWcpLCBcImtleVwiOiQoa2V5KSwgXCJmbmFtZVwiOiQoZm5hbWUpfSJ9";
     // 华南上传凭证
     public static final String bucket_z2 = "kodo-phone-zone2-space";
-    public static final String token_z2 = "dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:leoDnGLMa0wfqQ4GGb3yqWjLw5Y=:eyJzY29wZSI6ImtvZG8tcGhvbmUtem9uZTItc3BhY2UiLCJkZWFkbGluZSI6MTY2OTUzNDk3OCwgInJldHVybkJvZHkiOiJ7XCJmb29cIjokKHg6Zm9vKSwgXCJiYXJcIjokKHg6YmFyKSwgXCJtaW1lVHlwZVwiOiQobWltZVR5cGUpLCBcImhhc2hcIjokKGV0YWcpLCBcImtleVwiOiQoa2V5KSwgXCJmbmFtZVwiOiQoZm5hbWUpfSJ9";
+    public static final String token_z2 = "dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:juVQn2wvtbrFEy-J2Etq-JqO6UE=:eyJzY29wZSI6ImtvZG8tcGhvbmUtem9uZTItc3BhY2UiLCJkZWFkbGluZSI6MTY3NDgwMTE1NSwgInJldHVybkJvZHkiOiJ7XCJmb29cIjokKHg6Zm9vKSwgXCJiYXJcIjokKHg6YmFyKSwgXCJtaW1lVHlwZVwiOiQobWltZVR5cGUpLCBcImhhc2hcIjokKGV0YWcpLCBcImtleVwiOiQoa2V5KSwgXCJmbmFtZVwiOiQoZm5hbWUpfSJ9";
     // 北美上传凭证
     public static final String bucket_na0 = "kodo-phone-zone-na0-space";
-    public static final String token_na0 = "dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:4WqbwsnKFgWO6vZMr8V6tVMNZ50=:eyJzY29wZSI6ImtvZG8tcGhvbmUtem9uZS1uYTAtc3BhY2UiLCJkZWFkbGluZSI6MTY2OTUzNDk3OCwgInJldHVybkJvZHkiOiJ7XCJmb29cIjokKHg6Zm9vKSwgXCJiYXJcIjokKHg6YmFyKSwgXCJtaW1lVHlwZVwiOiQobWltZVR5cGUpLCBcImhhc2hcIjokKGV0YWcpLCBcImtleVwiOiQoa2V5KSwgXCJmbmFtZVwiOiQoZm5hbWUpfSJ9";
+    public static final String token_na0 = "dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:PDQxd9wAWd7_jV8UMR9dxnVtAac=:eyJzY29wZSI6ImtvZG8tcGhvbmUtem9uZS1uYTAtc3BhY2UiLCJkZWFkbGluZSI6MTY3NDgwMTE1NSwgInJldHVybkJvZHkiOiJ7XCJmb29cIjokKHg6Zm9vKSwgXCJiYXJcIjokKHg6YmFyKSwgXCJtaW1lVHlwZVwiOiQobWltZVR5cGUpLCBcImhhc2hcIjokKGV0YWcpLCBcImtleVwiOiQoa2V5KSwgXCJmbmFtZVwiOiQoZm5hbWUpfSJ9";
     // 东南亚上传凭证
     public static final String bucket_as0 = "kodo-phone-zone-as0-space";
-    public static final String token_as0 = "dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:YjOnS0SLd0P1Z5VG_3Oxfls0KeA=:eyJzY29wZSI6ImtvZG8tcGhvbmUtem9uZS1hczAtc3BhY2UiLCJkZWFkbGluZSI6MTY2OTUzNDk3OCwgInJldHVybkJvZHkiOiJ7XCJmb29cIjokKHg6Zm9vKSwgXCJiYXJcIjokKHg6YmFyKSwgXCJtaW1lVHlwZVwiOiQobWltZVR5cGUpLCBcImhhc2hcIjokKGV0YWcpLCBcImtleVwiOiQoa2V5KSwgXCJmbmFtZVwiOiQoZm5hbWUpfSJ9";
+    public static final String token_as0 = "dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:Aj9HN9lRqpQzyX3EVno7BjMBkv8=:eyJzY29wZSI6ImtvZG8tcGhvbmUtem9uZS1hczAtc3BhY2UiLCJkZWFkbGluZSI6MTY3NDgwMTE1NSwgInJldHVybkJvZHkiOiJ7XCJmb29cIjokKHg6Zm9vKSwgXCJiYXJcIjokKHg6YmFyKSwgXCJtaW1lVHlwZVwiOiQobWltZVR5cGUpLCBcImhhc2hcIjokKGV0YWcpLCBcImtleVwiOiQoa2V5KSwgXCJmbmFtZVwiOiQoZm5hbWUpfSJ9";
     // 华北浙江2上传凭证
     public static final String bucket_cn_east_2 = "kodo-phone-cn-east-2";
-    public static final String token_cn_east_2 = "dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:ogrnSltO4Vdsrcsk4XNCR9t63tQ=:eyJzY29wZSI6ImtvZG8tcGhvbmUtY24tZWFzdC0yIiwiZGVhZGxpbmUiOjE2Njk1MzQ5NzgsICJyZXR1cm5Cb2R5Ijoie1wiZm9vXCI6JCh4OmZvbyksIFwiYmFyXCI6JCh4OmJhciksIFwibWltZVR5cGVcIjokKG1pbWVUeXBlKSwgXCJoYXNoXCI6JChldGFnKSwgXCJrZXlcIjokKGtleSksIFwiZm5hbWVcIjokKGZuYW1lKX0ifQ==";
+    public static final String token_cn_east_2 = "dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:PDr1-LvnJ53Are_ZhhDVF4HwOPY=:eyJzY29wZSI6ImtvZG8tcGhvbmUtY24tZWFzdC0yIiwiZGVhZGxpbmUiOjE2NzQ4MDExNTUsICJyZXR1cm5Cb2R5Ijoie1wiZm9vXCI6JCh4OmZvbyksIFwiYmFyXCI6JCh4OmJhciksIFwibWltZVR5cGVcIjokKG1pbWVUeXBlKSwgXCJoYXNoXCI6JChldGFnKSwgXCJrZXlcIjokKGtleSksIFwiZm5hbWVcIjokKGZuYW1lKX0ifQ==";
     // 韩国亚太上传凭证
     public static final String bucket_ap_northeast_1 = "kodo-phone-ap-northeast-1";
-    public static final String token_ap_northeast_1 = "dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:yI8KG27WvY9QSLv669-yv9Ac1mY=:eyJzY29wZSI6ImtvZG8tcGhvbmUtYXAtbm9ydGhlYXN0LTEiLCJkZWFkbGluZSI6MTY2OTUzNDk3OCwgInJldHVybkJvZHkiOiJ7XCJmb29cIjokKHg6Zm9vKSwgXCJiYXJcIjokKHg6YmFyKSwgXCJtaW1lVHlwZVwiOiQobWltZVR5cGUpLCBcImhhc2hcIjokKGV0YWcpLCBcImtleVwiOiQoa2V5KSwgXCJmbmFtZVwiOiQoZm5hbWUpfSJ9";
-    public static final String invalidBucketToken = "dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:KVBTuAcbmqx0ji81VQRwPzLgUEY=:eyJzY29wZSI6InpvbmVfaW52YWxpZCIsImRlYWRsaW5lIjoxNjY5NTM0OTc4LCAicmV0dXJuQm9keSI6IntcImZvb1wiOiQoeDpmb28pLCBcImJhclwiOiQoeDpiYXIpLCBcIm1pbWVUeXBlXCI6JChtaW1lVHlwZSksIFwiaGFzaFwiOiQoZXRhZyksIFwia2V5XCI6JChrZXkpLCBcImZuYW1lXCI6JChmbmFtZSl9In0=";
+    public static final String token_ap_northeast_1 = "dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:StRMMkmKvNZMCo6zTrUjaLO529E=:eyJzY29wZSI6ImtvZG8tcGhvbmUtYXAtbm9ydGhlYXN0LTEiLCJkZWFkbGluZSI6MTY3NDgwMTE1NSwgInJldHVybkJvZHkiOiJ7XCJmb29cIjokKHg6Zm9vKSwgXCJiYXJcIjokKHg6YmFyKSwgXCJtaW1lVHlwZVwiOiQobWltZVR5cGUpLCBcImhhc2hcIjokKGV0YWcpLCBcImtleVwiOiQoa2V5KSwgXCJmbmFtZVwiOiQoZm5hbWUpfSJ9";
+    public static final String invalidBucketToken = "dxVQk8gyk3WswArbNhdKIwmwibJ9nFsQhMNUmtIM:mJ6Z0JLK5op1_d0FdU0JrjIHKog=:eyJzY29wZSI6InpvbmVfaW52YWxpZCIsImRlYWRsaW5lIjoxNjc0ODAxMTU1LCAicmV0dXJuQm9keSI6IntcImZvb1wiOiQoeDpmb28pLCBcImJhclwiOiQoeDpiYXIpLCBcIm1pbWVUeXBlXCI6JChtaW1lVHlwZSksIFwiaGFzaFwiOiQoZXRhZyksIFwia2V5XCI6JChrZXkpLCBcImZuYW1lXCI6JChmbmFtZSl9In0=";
 
     // -----------
     public static final String ak = "bjtWBQXrcxgo7HWwlC_bgHg81j352_GhgBGZPeOW";

diff --git a/library/src/main/java/com/qiniu/android/collect/ReportItem.java b/library/src/main/java/com/qiniu/android/collect/ReportItem.java
@@ -16,6 +16,9 @@ public void setReport(Object value, String key){
         if (key == null || value == null){
             return;
         }
+        if (value instanceof String && ((String) value).length() > 1024) {
+            value = ((String) value).substring(0, 1024);
+        }
         keyValues.put(key, value);
     }
 

diff --git a/library/src/main/java/com/qiniu/android/common/AutoZone.java b/library/src/main/java/com/qiniu/android/common/AutoZone.java
@@ -10,6 +10,7 @@
 import org.json.JSONObject;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 import java.util.concurrent.ConcurrentHashMap;
@@ -23,6 +24,7 @@ public final class AutoZone extends Zone {
      */
     private String[] ucServers;
     private ArrayList<RequestTransaction> transactions = new ArrayList<>();
+    private FixedZone defaultZone;
 
     private static final SingleFlight SingleFlight = new SingleFlight();
 
@@ -39,17 +41,17 @@ public void setUcServers(String[] ucServers) {
         }
     }
 
+    public void setDefaultZones(FixedZone[] zones) {
+        defaultZone = FixedZone.combineZones(zones);
+    }
+
     public List<String> getUcServerList() {
         if (ucServers != null && ucServers.length > 0) {
             ArrayList<String> serverList = new ArrayList<>();
             Collections.addAll(serverList, ucServers);
             return serverList;
         } else {
-            ArrayList<String> serverList = new ArrayList<>();
-            serverList.add(Config.preQueryHost02);
-            serverList.add(Config.preQueryHost00);
-            serverList.add(Config.preQueryHost01);
-            return serverList;
+            return Arrays.asList(Config.preQueryHosts());
         }
     }
 
@@ -61,7 +63,7 @@ private String[] getUcServerArray() {
         if (ucServers != null && ucServers.length > 0) {
             return ucServers;
         } else {
-            return new String[]{Config.preQueryHost00, Config.preQueryHost01};
+            return Config.preQueryHosts();
         }
     }
 
@@ -70,7 +72,8 @@ public ZonesInfo getZonesInfo(UpToken token) {
         if (token == null) {
             return null;
         }
-        ZonesInfo zonesInfo = GlobalCache.getInstance().zonesInfoForKey(token.index());
+        final String cacheKey = token.index();
+        ZonesInfo zonesInfo = GlobalCache.getInstance().zonesInfoForKey(cacheKey);
         if (zonesInfo != null) {
             try {
                 zonesInfo = (ZonesInfo) zonesInfo.clone();
@@ -137,12 +140,20 @@ public void complete(Object value) {
                             completeHandler.complete(ResponseInfo.ParseError, responseInfo, requestMetrics);
                         }
                     } else {
-                        if (responseInfo.isNetworkBroken()) {
+                        if (responseInfo != null && responseInfo.isNetworkBroken()) {
                             completeHandler.complete(ResponseInfo.NetworkError, responseInfo, requestMetrics);
                         } else {
-                            ZonesInfo zonesInfoP = FixedZone.localsZoneInfo().getZonesInfo(token);
-                            if (zonesInfoP.isValid()) {
-                                GlobalCache.getInstance().cache(zonesInfoP, cacheKey);
+                            ZonesInfo info = null;
+                            if (defaultZone != null) {
+                                ZonesInfo infoP = defaultZone.getZonesInfo(token);
+                                if (infoP != null && infoP.isValid()) {
+                                    infoP.toTemporary();
+                                    info = infoP;
+                                }
+                            }
+
+                            if (info != null) {
+                                GlobalCache.getInstance().cache(info, cacheKey);
                                 completeHandler.complete(0, responseInfo, requestMetrics);
                             } else {
                                 completeHandler.complete(ResponseInfo.ParseError, responseInfo, requestMetrics);

diff --git a/library/src/main/java/com/qiniu/android/common/Config.java b/library/src/main/java/com/qiniu/android/common/Config.java
@@ -72,6 +72,10 @@ public final class Config {
     public static String preQueryHost01 = "api.qiniu.com";
     public static String preQueryHost02 = "kodo-config.qiniuapi.com";
 
+    public static String[] preQueryHosts() {
+        return new String[]{preQueryHost00, preQueryHost02, preQueryHost01};
+    }
+
     /**
      * 当网络切换到 wifi 下，切换到此设置
      */

diff --git a/library/src/main/java/com/qiniu/android/common/Constants.java b/library/src/main/java/com/qiniu/android/common/Constants.java
@@ -2,7 +2,7 @@
 
 
 public final class Constants {
-    public static final String VERSION = "8.5.1";
+    public static final String VERSION = "8.5.2";
 
     public static final String UTF_8 = "utf-8";
 }
diff --git a/library/src/main/java/com/qiniu/android/common/FixedZone.java b/library/src/main/java/com/qiniu/android/common/FixedZone.java
@@ -64,18 +64,28 @@ public final class FixedZone extends Zone {
     private ZonesInfo zonesInfo;
 
     public static FixedZone localsZoneInfo() {
-        ArrayList<FixedZone> localsZone = new ArrayList<>();
-        localsZone.add((FixedZone)zone0);
-        localsZone.add((FixedZone)zoneCnEast2);
-        localsZone.add((FixedZone)zone1);
-        localsZone.add((FixedZone)zone2);
-        localsZone.add((FixedZone)zoneNa0);
-        localsZone.add((FixedZone)zoneApNorthEast1);
-        localsZone.add((FixedZone)zoneAs0);
+        FixedZone[] localsZone = new FixedZone[]{
+                (FixedZone) zone0, (FixedZone) zoneCnEast2,
+                (FixedZone) zone1, (FixedZone) zone2,
+                (FixedZone) zoneNa0, (FixedZone) zoneApNorthEast1,
+                (FixedZone) zoneAs0,
+        };
+
+        FixedZone zone = combineZones(localsZone);
+        if (zone != null) {
+            zone.zonesInfo.toTemporary();
+        }
+        return zone;
+    }
+
+    public static FixedZone combineZones(FixedZone[] zones) {
+        if (zones == null || zones.length == 0) {
+            return null;
+        }
 
         ArrayList<ZoneInfo> zoneInfoArray = new ArrayList<>();
-        for (FixedZone zone : localsZone){
-            if (zone.zonesInfo != null && zone.zonesInfo.zonesInfo != null){
+        for (FixedZone zone : zones) {
+            if (zone.zonesInfo != null && zone.zonesInfo.zonesInfo != null) {
                 zoneInfoArray.addAll(zone.zonesInfo.zonesInfo);
             }
         }
@@ -90,7 +100,7 @@ public FixedZone(ZoneInfo zoneInfo) {
         this.zonesInfo = new ZonesInfo(zoneInfoList);
     }
 
-    public FixedZone(ZonesInfo zonesInfo){
+    public FixedZone(ZonesInfo zonesInfo) {
         this.zonesInfo = zonesInfo;
     }
 
@@ -116,7 +126,7 @@ private ZonesInfo createZonesInfo(String[] upDomains,
 
         List<String> upDomainsList = new ArrayList<String>(Arrays.asList(upDomains));
         List<String> oldUpDomainsList = null;
-        if (oldUpDomains != null && oldUpDomains.length > 0){
+        if (oldUpDomains != null && oldUpDomains.length > 0) {
             oldUpDomainsList = new ArrayList<String>(Arrays.asList(oldUpDomains));
         } else {
             oldUpDomainsList = new ArrayList<>();
@@ -139,7 +149,7 @@ public ZonesInfo getZonesInfo(UpToken token) {
 
     @Override
     public void preQuery(UpToken token, QueryHandler completeHandler) {
-        if (completeHandler != null){
+        if (completeHandler != null) {
             completeHandler.complete(0, null, null);
         }
     }

diff --git a/library/src/main/java/com/qiniu/android/common/ZonesInfo.java b/library/src/main/java/com/qiniu/android/common/ZonesInfo.java
@@ -4,6 +4,7 @@
 import org.json.JSONObject;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 
 public class ZonesInfo implements Cloneable {
 
@@ -23,24 +24,36 @@ public ZonesInfo(ArrayList<ZoneInfo> zonesInfo, boolean isTemporary) {
 
     public static ZonesInfo createZonesInfo(JSONObject jsonObject) {
         ArrayList<ZoneInfo> zonesInfo = new ArrayList<>();
-        try {
-            if (jsonObject != null) {
+        if (jsonObject != null) {
+            try {
                 JSONArray hosts = jsonObject.getJSONArray("hosts");
                 for (int i = 0; i < hosts.length(); i++) {
                     ZoneInfo zoneInfo = ZoneInfo.buildFromJson(hosts.getJSONObject(i));
                     if (zoneInfo != null && zoneInfo.isValid()) {
                         zonesInfo.add(zoneInfo);
                     }
                 }
+
+            } catch (Exception ignored) {
             }
-        } catch (Exception ignored) {
         }
 
         return new ZonesInfo(zonesInfo);
     }
 
     public boolean isValid() {
-        return zonesInfo != null && zonesInfo.size() > 0 && zonesInfo.get(0).isValid();
+        if (zonesInfo == null || zonesInfo.size() == 0) {
+            return false;
+        }
+
+        boolean valid = true;
+        for (ZoneInfo info : zonesInfo) {
+            if (!info.isValid()) {
+                valid = false;
+                break;
+            }
+        }
+        return valid;
     }
 
     // 是否为临时 zone, 临时 zone，不建议长期使用
@@ -57,7 +70,7 @@ protected Object clone() throws CloneNotSupportedException {
         ArrayList<ZoneInfo> infos = new ArrayList<>();
         if (zonesInfo != null && zonesInfo.size() > 0) {
             for (ZoneInfo zoneInfo : zonesInfo) {
-                infos.add((ZoneInfo)zoneInfo.clone());
+                infos.add((ZoneInfo) zoneInfo.clone());
             }
         }
         ZonesInfo info = new ZonesInfo(infos);

diff --git a/library/src/main/java/com/qiniu/android/http/dns/DnsPrefetcher.java b/library/src/main/java/com/qiniu/android/http/dns/DnsPrefetcher.java
@@ -1,7 +1,6 @@
 package com.qiniu.android.http.dns;
 
 import com.qiniu.android.common.Config;
-import com.qiniu.android.common.FixedZone;
 import com.qiniu.android.common.Zone;
 import com.qiniu.android.common.ZoneInfo;
 import com.qiniu.android.common.ZonesInfo;

diff --git a/library/src/main/java/com/qiniu/android/storage/serverConfig/ServerConfigMonitor.java b/library/src/main/java/com/qiniu/android/storage/serverConfig/ServerConfigMonitor.java
@@ -6,6 +6,7 @@
 import com.qiniu.android.transaction.TransactionManager;
 
 import java.util.List;
+import java.util.Random;
 
 public class ServerConfigMonitor {
     private static final String TransactionKey = "ServerConfig";
@@ -42,7 +43,9 @@ public synchronized static void startMonitor() {
             return;
         }
 
-        TransactionManager.Transaction transaction = new TransactionManager.Transaction(TransactionKey, 0, 10, new Runnable() {
+        Random random = new Random();
+        int interval = 120 + random.nextInt(240);
+        TransactionManager.Transaction transaction = new TransactionManager.Transaction(TransactionKey, 0, interval, new Runnable() {
             @Override
             public void run() {
                 configMonitor.monitor();